Parts

Sure, there are plenty of lightweight XC forks out there, but racing demands so much more. Nimble handling, gram-obsessed weight, buttery damping—combined, they all make the difference between a good fork and a great fork. And with this in mind, the all-new RockShox SID World Cup Brain fork has been completely redesigned to meet the demands of XC racing, and hyperbole aside, we can confidently say that it sets the bar for race-worthy performance. The all-new Brain damper uses position sensitive technology for better chassis balance and traction. It does this while retaining the ability to separate rider input from bump events on the trail—just some of the incredible stuff that Brain is known for. The new technology can now remain active during the initial 25mm of travel, and this creates a much more balanced riding position and supple front-end feel. In turn, this goes a long way in reducing rider fatigue. And although the fork feels more active initially, as soon as you standup to get on the gas, the forward shift in weight naturally compresses the fork into the platform. So yeah, you'll feel well supported and efficient during hard sprint efforts. Incredibly, Brain does all this while keeping you in control and riding smooth on rough terrain without any need for extra cables and lockout levers on the handlebars. The World Cup Brain edition of the SID is not just a slight upgrade over the RLC and XX models, either. Along with the integrated Brain technology, it utilizes a carbon fiber steerer and crown, which reduce weight by over 100 grams and increases the overall stiffness. Also adding to the stiffness of is the short-travel-specific design. Leaving the 120-millimeter segment to the trail category, RockShox’s engineers were able to focus on the 80- to 100-millimeter travel range, and therefore develop lighter and stiffer uppers and air shafts. This new design, along with SRAM's Torque Caps (they create an enhanced interface between the hub and fork dropout), Power Bulge technology that reinforces the lowers, and 110-millimeter Boost spacing, keeps torsional stiffness high, allowing you to point-and-shoot while descending. Last, but certainly not least, on the feature spec is the Solo Air spring that’s customizable with RockShox’s Bottomless Tokens. The Solo Air spring lets you adjust pressure with a single Schrader valve that controls the pressure in both the positive and negative air chambers, making adjustments to pressure simple and intuitive. To customize ramp-up preference, RockShox’s Bottomless Tokens can be added to create a suspension curve that’s custom to your preferences. - Tapered Full Carbon Steerer tube - Top-adjust Brain damper w/ Position Sensitive technology - 110mm spacing with Torque Cap compatibility - 100mm of travel

No matter your skill level or experience on the bike, there's no better way to enhance your training and racing performance than by riding with a power meter. And for all of you Dura-Ace fans out there, we've combined our extremely light power sensors with a Shimano Dura-Ace crankset to give you the most accurate and precise power meter available. The development of Power Cranks began with our Human Performance Team looking at riders in realistic scenarios on the bike. Historically, power meters have been validated by two different methods—one is by measuring the produced torque by applying a static, linear load to a crankarm or chainring, while the second uses a power generating motor to pedal the bike. Well, cycling is neither static nor linear, and humans apply power much differently than a machine. So, we found that neither of these methods answers the "real-world" accuracy question. To get the best test for accuracy, in all types of riding scenarios, we built our own cycling treadmill, the WinMill, to measure power output to a known truth. This new benchmark lets us evaluate accuracy under all riding conditions—seated versus standing, various power and cadence levels, different weights, and a myriad of gear. This data acquisition process is our gold-standard for testing power meters, and through our testing and external validation from the Locomotion Lab in Boulder, Colorado, Power Cranks have been proven to have the highest accuracy in real-world scenarios (+/- 1.5%). The Dual-Sided S-Works Power Cranks utilize separate strain gauge systems to individually measure the effort produced by each leg. This maximizes the accuracy of your total power numbers, plus it helps you to better understand your performance as fatigue increases and when you're recovering from injury. And with class-leading temperature compensation firmware and waterproof enclosures, Power Cranks are easy to live with. Calibration is only required during seasonal-type fluctuations in temperature, and the included wrench makes battery swaps a breeze. - +/- 1.5% real-world accuracy tested on the WinMill and validated by the Locomotion Lab in Boulder, CO - Independent, dual-leg power measurement - Works with ANT+ and Bluetooth devices - Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available) - Available in 170-175mm crankarm lengths - All models include 52/36T chainrings

The road steepens, but instead of slowing down, you push harder on the pedals and fly up the hill as all of your power turns into speed thanks to your Campagnolo Super Record Ultra-Torque Crankset. It sports a unique, integrated titanium spindle design that joins the two sides of the crankset together via a toothed Hirth joint in the center. And for ultra-smooth pedaling, the crankset comes with ceramic bottom-bracket bearings that fit into outboard cups (sold separately). The design's stiffness allows Campagnolo's gorgeous multi-directional carbon crankarms to be thinner and lighter than ever before. Plus, the Super Record chainrings sport special pins and plating for fast, silent shifts and long life.

The road steepens, but instead of slowing down, you push harder on the pedals and fly up the hill as all of your power turns into speed thanks to your Campagnolo Super Record Ultra-Torque Crankset. It sports a unique, integrated titanium spindle design that joins the two sides of the crankset together via a toothed Hirth joint in the center. And for ultra-smooth pedaling, the crankset comes with ceramic bottom-bracket bearings that fit into outboard cups (sold separately). The design's stiffness allows Campagnolo's gorgeous multi-directional carbon crankarms to be thinner and lighter than ever before. Plus, the Super Record compact chainrings sport special pins and plating for fast, silent shifts and long life.

Dual-sensing Pedal-based Power Meter Ride stronger, smarter, connected with the Vector 3 pedal-based power meter. As you strive to beat your personal best on your next race or Gran Fondo, power is the most reliable way to gauge your performance on any given day, at any given time. Unlike other power meters, Vector 3 has the sensors housed right in the pedals, so it delivers reliable, accurate data on every training session. - Installs like any other pedal and quickly transfers between bikes - Measures total power, left/right balance, cadence and cycling dynamics - Sleek design provides greater cornering clearance and improved stack height - Fully integrates with Garmin cycling ecosystem for data analysis - Allows for easy updates via compatible Edge cycling computers, ANT+ connectivity or Bluetooth-enabled fitness devices and Garmin Connect Mobile app - Battery life: up to 120 hours - Cleat hardware included WARNING: The maximum weight limit of the cyclist using the Vector system is 231 lbs (105 kg). Cyclists over this weight limit risk personal injury and property damage. Specifications: - Battery type: LR44/SR44 (x4) - Battery life: up to 120 hours - Weight: 316 g - Max. rider weight: 105 kg - Accuracy: +/- 1.0% - Cleat type: Keo - Q-factor: 53 mm/55 mm with supplied spacing washer - Stack height: 12.2 mm - Field calibration - Adjustable release tension - Garmin Connect - Measurement location: Spindle - Communication: ANT+ and Bluetooth

Shimano dual control hydraulic disc brake levers. - More controllable and confidence in race condition - Optimally balanced hydraulic brake system for racing - Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddles - Lightweight - Carbon composite plastic material of hood - More intuitive, quicker shifting operation - More defined click feeling and ergonomic shift lever position - Customizable function to fit any riding style - Each switch has the option for multi-shift ON or OFF - E-TUBE project - Optimum power transmitted with grip firmly - Ideal ergonomic cover shape with better thickness & tenderness - Openable hood cover - Simple set up and maintenance - Easy replace hood cover - Openable hood cover - Customizable the function to fit in rider's riding style

No matter your skill level or experience on the bike, there's no better way to enhance your training and racing performance than by riding with a power meter. Lucky for you, Specialized has combined their incredibly light and stiff carbon fiber S-Works road cranks with dual-sided power measurement, making it the lightest (440g/172.5mm) and most accurate power meter available. The development of Power Cranks began with Specialized's Human Performance Team looking at riders in realistic scenarios on the bike. Historically, power meters have been validated by two different methods—one is by measuring the produced torque by applying a static, linear load to a crankarm or chainring, while the second uses a power generating motor to pedal the bike. Well, cycling is neither static nor linear, and humans apply power much differently than a machine. So, they found that neither of these methods answer the "real-world" accuracy question. To get the best test for accuracy, in all types of riding scenarios, Specialized built their own cycling treadmill, the WinMill, to measure power output to a known truth. This new benchmark lets them evaluate accuracy under all riding conditions—seated versus standing, various power and cadence levels, different weights, and a myriad of gear. This data acquisition process is their gold-standard for testing power meters, and through their testing and external validation from the Locomotion lab in Boulder, Colorado, Power Cranks have been proven to have the highest accuracy in real world scenarios (+/- 1.5%). The Dual-Sided S-Works Power Cranks utilize separate strain gauge systems to individually measure the effort produced by each leg. This maximizes the accuracy of your total power numbers, plus it helps you to better understand your performance as fatigue increases and when you're recovering from injury. And with class-leading temperature compensation firmware and waterproof enclosures, Power Cranks are easy to live with. Calibration is only required during seasonal-type fluctuations in temperature, and the included wrench makes battery swaps a breeze. - +/-1.5% real-world accuracy tested on the WinMill and validated by the Locomotion Lab in Boulder, CO. - Independent, dual-leg power measurement. - Works with ANT+ and Bluetooth devices. - Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available). - Hollow carbon crankarms, carbon spider, and oversized alloy spindle offer superior stiffness and lighter weight than the competition—440 grams for 172.5mm crankarm length. - Fits Specialized road frames with OSBB or PF30 bottom bracket shell, as well as most BB30 road frames. - 110 BCD carbon spider (also compatible with 130 BCD carbon spider—sold separately). - Compatible with Shimano and SRAM drivetrains. Chainrings are sold separately. Use only with Specialized/Praxis chainrings 06217-1702 (52/36T) and 06218-1713 (50/34T). - Available in 165-180mm crankarm lengths.

The Custom Li-Ion Turbo Levo Battery has a 504Wh capacity and works with all Turbo Levo models. The battery also includes an ANT+/ Bluetooth module that enables the bike to work with the Specialized Mission Control App or any other ANT+ device. Lastly, it has a rock guard and all of the hardware required for installation. - Battery features a 504Wh capacity - Works for all Turbo Levo models - ANT+/Bluetooth module works with Specialized's Mission Control App and any other ANT+ device - Includes rock guard and all hardware

Italian beauty meets electronic precision in Campagnolo's brilliant Record EPS Rear Derailleur. Campagnolo uses an advanced parallelogram design for impeccable, lightning-fast shifting of up to all 11 gears with a single button push. Stop on any gear in between and the position sensor makes micro-adjustments to ensure perfect alignment every time. The construction pairs carbon and cold-forged aluminum to create an ultra strong and extremely light derailleur. Plus, the pulleys roll on super-efficient ceramic bearings and are made from a special rubber that renders the drivetrain virtually silent.

Campagnolo's incredible Record Crankset sports amazing stiffness from their beautiful multi-directional carbon crankarms. They're meticulous design is thin and light to rocket you forward with every rotation. The rotation comes from a unique, integrated spindle that joins the crankset together via a toothed Hirth joint in the center. And it spins on Campy's ultra-smooth bottom-bracket bearings which are included and fit into outboard cups (sold separately). Plus, the Record chainrings sport special pins and plating for fast, silent shifts, and long life.

Campagnolo's Record EPS Braze-On Front Derailleur delivers electronic precision to front shifts. You can switch to the big ring under a heavy load and it's still as smooth as a dream. An aluminum internal cage plate and external carbon one provides the incredibly quick shifting and sleek looks. It's versatile too, working with both standard and compact cranksets and auto-trimming to eliminate chain rub.

Shimano's Dura-Ace 11-Speed Hollowtech II Crankset has set the benchmark in strength-to-weight ratios, which is why it's proven itself at the highest echelon of competition. Made of cold-forged and CNC-machined aluminum, it has hollow crankarms and a hollow large chainring. Both chainrings also feature teeth perfectly designed to assist up- and down-shifts. Perhaps most unique is the 4-arm design that maximizes strength and rigidity where your pedal stroke is strongest. The result is legendary stiffness for awesome power transfer and precision shifting you'll love.

- Ergonomic Shifting Operation Without Stress - Shimano Synchronized Shift - Low Profile Rear Derailleur Design - Shimano Shadow Rd - Race Endurance For Less Damage In Crush - Maintains Compact And Smooth Appearance - Maximum Sprocket: 30T - Minimum Sprocket: 11T - Maximum Front Difference: 16T - Total Capacity: 35T

Designed specifically for use with H11 groupsets. Full Carbon crank arms and spider are hollow for maximum stiffness and minimal weight. Utilizes USB ceramic ball bearings. Light weight hard anodized alloy chainrings and alloy chainring bolts. Utilizes Campagnolo's Ultra-Torque crank system. - Ultra-Torque axles couple together in the middle of the BB shell via a Hirth Joint that self centers the crank. This results in a very light weight and stiff system that transfers power to the pedals without power loss - Features Campagnolo X.P.S.S. (eXtreme Performance Shifting System) featuring geometrically optimized chainring teeth. Optimized when mated to a full Campagnolo drivetrain - USB ceramic bearings increase smoothness and decrease rolling resistance, weight and the need for maintenance. USB bearings are 50% smoother than standard Campagnolo bearings - Ultra-Torque system have both drive and non-drive side bearings pre-installed - Double standardized bolt circle diameter allows for use of standard, mid-compact and compact chainrings - Required for use with H11 Ergopower shift levers, the crank spider is shifted outward to adjust for 135 and 142mm hub spacing while maintaining the Q-Factor - Requires use of Ultra-Torque bottom bracket cups

Speedplay's Zero Nanogram pedals take an already amazing pedal platform to its limits. The R&D department managed to shave weight everywhere imaginable while keeping the cornering clearance, adjustability, and easy dual-sided entry and exit that made the Zero famous, intact. The bodies are made from carbon reinforced thermoplastic and the already light hardware has been optimized with titanium and aluminum counterparts. As always, the Zeros let you choose a fixed cleat position or up to 15-degrees of unimpeded float, as well as independent adjustments of the lateral and fore/aft positioning. They boast needle, ceramic, and cartridge bearings and a cleat-based engagement mechanism that ensures you won’t clip out when going hard. Get a pair before they float away.

Shimano Ultegra ST-R8070 Di2 hydraulic disc brake dual control levers. - Intuitive shifting operation - Updated features and more defined click feeling - Clearer separation between shift buttons support quick and precise shifting while operating with thick gloves - Customizable functionality to match the rider's style - Each switch has the option for multi-shift ON or OFF - E-TUBE PROJECT - Programmable function of ST top button remote switch for third party cycle computer and shifting - Greater rider control in all conditions - Hydraulic disc brake provides the next stage of control - Small bracket size improves ergonomics - Customize each SW for multi-shift on or off per SW through E-tube project App. - Greater reach adjust range and free stroke adjuster - Lightweight race-ready materials - More quick and precise shifting while operating with thick gloves - 2x11-speed - Average Weight: 180 grams

Campagnolo's Record 11-Speed Cassette has been expertly engineered for unparalleled shifting and maximum power transfer. Its largest 3 cogs are constructed from titanium for light weight, while the other 8 are made of nickel-plated steel for durability. Plus, the cogs are mounted on a light and rigid aluminum carrier, and the cassette is secured to the rear hub with a feathery aluminum lockring.

Single-sensing Pedal-based Power Meter Ride stronger, smarter, connected with the Vector 3S pedal-based power meter. As you strive to beat your personal best on your next race or Gran Fondo, power is the most reliable way to gauge your performance on any given day, at any given time. Unlike other power meters, Vector 3S has a sensor housed in the left pedal, so it delivers reliable, accurate data on every training session. - Installs like any other pedal and quickly transfers between bikes - Reports cadence and total power (watts) - Easily upgrades to dual-sensing system - Fully integrates with Garmin cycling ecosystem for data analysis - Allows for easy updates via compatible Edge cycling computers, ANT+ connectivity or Bluetooth-enabled fitness devices and Garmin Connect Mobile app - Battery life: up to 120 hours - Cleat hardware included WARNING: The maximum weight limit of the cyclist using the Vector system is 231 lbs (105 kg). Cyclists over this weight limit risk personal injury and property damage. Specifications: - Battery type: LR44/SR44 (x2) - Battery life: up to 120 hours - Weight: 324 g - Max. rider weight: 105 kg - Accuracy: +/- 1.0% - Cleat type: Keo - Q-factor: 53 mm/ 55mm with supplied spacing washer - Stack height: 12.2 mm - Field calibration - Adjustable release tension - Garmin Connect - Measurement location: Spindle - Communication: ANT+ and Bluetooth

The new Super Record 12x2 Speed Disc Brake groupset is Campagnolo's highest expression of technology and evolution. It is geared towards riders who want to equip their bicycle with the best the market offers in terms of performance and distinctiveness. The need to improve what is already considered the benchmark means every single detail, even the most basic, is attended to. The new Super Record 12x2 Speed Disc Brake groupset is presented on the market with an innovative rear derailleur designed with 3D Embrace technology that enables the chain to maintain the highest level of traction, even on the smallest sprockets. The new front derailleur with its double connector rod system enhances the use of the 24 speeds and takes full advantage of each combination of metric development. It always finds the ideal ratio for every incline. The new Ergopower controls are even more ergonomic due to the unique shape of the levers that allow for even better operation. The new crankset with the two-by-two coupling of the arms is a step forward in stiffness, whilst keeping constant the technologies and advantages characteristic of Super Record. The new sprocket packs contain an extra sprocket and highlight the incredibly technological processing of the larger sprockets enclosed in the two triplet single-piece monolith units. The new 5.2 mm chain maintains the high Campagnolo standards, enhancing the derailings of the new Super Record drivetrain through the alignment of the pins on the external links. Last but not least, the Disc Brake technology developed by Campagnolo for the 2018 product range ensures that the Super Record groupset has the greatest braking force and modulability possible.

New mechanical Ergopower Super Record 12x2 Speed Disc Brake controls: more ergonomic, more precise, more powerful and easier to maintain. Comfort, control, speed, and responsiveness are some of the main features of a bike's controls, helping keep all situations under control. The new mechanical controls for the Ergopower Super Record 12x2 Speed Disc Brake offer an ergonomic, comfortable and safe support and grip thanks to Vari-Cushion technology, essential for those who stay on the saddle for several hours. The controls’ inner workings are a concentration of technology and experience, starting with the “one lever, one action” function, which assigns each lever a single function, helping avoid shifting errors at tired or distracting moments, and then continue with the multiple shifting option which allows up- or downshifting by up to 5 sprockets at a time thanks to the Ultra-Shift mechanism. This function allows you to maintain cadence even in case of sudden changes of incline or rhythm, with speed and ease as useful as it is surprising. Further useful features are the levers’ adjustability, which, thanks to Reach Adjustment, enable a low grip on the brake lever, helping those with smaller hands; and AMS Adjustment, which enables shifting time modulation, using the dedicated levers. The Super Record Disc Brake brake levers are engineered with a double curvature for improved grip and are lightened with two slots that are added to the one dedicated to Reach Adjustment.

Campagnolo's Athena EPS Rear Derailleur uses an advanced-parallelogram design that assures quick, precise shifting, while high-power servo motors make it effortless. The near-instant response is as impressive as being able to shift all 11 gears with a mere button hold. No matter what gear, the position sensor automatically adjusts for perfect alignment on every shift. And, in the unlikely event of a system malfunction, the manual release allows you to move the rear derailleur to your desired gear to get you home. Plus, the aluminum and carbon construction keeps weight low and boosts strength and the pulleys are made from a special rubber for whisper quiet drivetrain action.

Campagnolo's Super Record Rear Derailleur is the choice of professionals and is a perfect fit for your dream bike. Its arresting beauty is entwined with the highest technical precision available. Campagnolo uses an advanced-parallelogram design for precise, fast shifting every time. The construction groups carbon and cold-forged-aluminum hardware to create an ultra strong and extremely light derailleur. Plus, the pulleys roll on super-efficient ceramic bearings and are made from a special material that renders the drivetrain silent.

Integrated brake/shift lever with hydraulic line and flat mount disc caliper attached. Shift lever features 11-Speed Ultra-Shift shifting providing the ability to up-shift five sprockets and down three. Composite lever body with carbon brake lever. - Brakes are shipped dry, and require bleeding after installation. Compatible with both Campagnolo and Magura bleed fittings - Requires the use of H11 crankset and MY15 and newer Chorus, Record or Super Record derailleurs - Adjustable reach and lever throw - Ultra-Shift Ergonomics design makes it possible to utilize three different hand positions on the levers - Vari-Cushion silicon hoods provide variable cushioning zones to optimize comfort while grooved areas drain water away improving grip - Double curvature brake lever allows for engagement and modulation from any hand position - Includes genuine Campagnolo shift cables and housing

Campagnolo's incredible Record Ultra-Torque Crankset sports a unique, integrated spindle that joins the two sides of the crankset together via a toothed Hirth joint in the center. Campy's ultra-smooth bottom-bracket bearings are included and fit into outboard cups (sold separately). The aesthetically striking design provides incredible stiffness, while Campagnolo's standardized BCD (145/112mm) allows for multiple chainring sizes. Plus, the Record chainrings sport special pins and plating for fast, silent shifts and long life. - Chainrings included: Yes - Drivetrain speeds: 11 - Number of chainrings: double - Spindle interface: Campagnolo Ultra-Torque

The new mechanical Ergopower Super Record 12x2 Speed Rim Brake controls ergonomics, comfort, control, precision. The new mechanical Ergopower Super Record 12x2 Speed Rim Brake controls offer an important new feature: two brake lever positions that allow riders to choose the lever-handlebar distance that is most suited to the size of their hand. It does so whilst keeping braking efficiency constant the new angle of the up-shifting lever that prevents any possible contact with the curve of the handlebar. The position of the lever is adjusted by acting directly on the controls in a simple and safe manner. The Vari-Cushion technology offers ergonomic, comfortable and safe support and grip, ideal for riders who are in the saddle for many hours. The internals of the controls boast a concentration of technologies and experience, starting with the “one lever, one action” feature that assigns one function to each lever in order to prevent shifting errors when tired or distracted. This is followed by the option for multiple shifting that enables upshifting up to 3 sprockets at a time and downshifting up to 5 through the Ultra-Shift mechanism. The new Super Record 12x2 Speed Rim Brake levers introduce a double curvature to improve grip, which is lightened by three slots.

Found under the hands of the peloton's top riders, Campagnolo's Super Record Ergopower Shift/Brake Levers are a perfect match for you and your dream bike. The rear lever's unique design allows for up to 5 downshifts and 3 upshifts at a time, while the front lets you switch your chainrings faster than ever, and also offers trimming for a super-quiet drivetrain. You'll also love the comfortable, ergonomic design that makes the levers and hoods fit like a glove. Plus, Campagnolo's advanced carbon construction and svelte titanium hardware make these levers among the most beautiful and lightest available. • Not compatible with 2015 and newer Campagnolo drivetrains • Compatible with Campagnolo rear derailleurs only • Insert for large hands available • Cables and housing included

Campagnolo's Athena EPS Front Derailleur delivers incredibly quick, precise shifts, even under heavy pedaling loads. Thanks to its high-power servo motors, a deliberate and simple shift is always at your fingertips. Plus, the position sensor automatically adjusts the trim so you never experience chain rub.

Campagnolo's Record EPS ErgoPower Levers offer superb braking and electronic shifting function. The rear lever's unique design allows for up to ten simultaneous shifts in either direction with the simple hold of a button. Plus, you can easily shift the front chainring flawlessly even under load. You'll also love the comfortable, ergonomic design that makes the levers and hoods fit like a glove. Plus, Campagnolo's advanced carbon construction makes these levers just as visually incredible as they are light.

A powerful punch in a tiny package! Boasting an optimised design and driven by the highest quality motors available today, the front derailleur moves the chain precisely in all conditions, even under strain. The result is a derailing speed like nothing you've ever seen before, with the chain shifting up and down from one chainring to the next with truly astonishing speed and precision. The body is made of Monolithic carbon, while the internal and external derailleur cage is composed of an aluminum/carbon mix to maximize stiffness and minimize weight. Plus the Magnetic Hall Sensor Resolver automatically trims the front derailleur to line up with the rear. - Derailleur capacity: 16T - Double or triple: Double - Drivetrain speeds: 11 - Max Ring (teeth): 55T - Compatibility: Campagnolo electronic Record/Super Record EPS - Waterproof to 1 meter for 30 minutes (IP67 rated) - Weight: 133g

The Super Record groupset is the best Campagnolo mechanical transmission. It is the choice that even top professionals rely upon for improved performance, reliability and precision. Speed, precision, smoothness and better looks: the first rear derailleur with carbon fibre upper and lower body will amaze even the most demanding of cyclists. - Carbon fiber front plate with 3 lightening holes, titanium screws, and outer carbon cage plate - Campagnolo Ultra-Shift parallelogram maximizes stiffness, shifting speed and precision - - Lightweight technopolymer pulleys, lower pulley with ceramic ball bearings - Compatible with Potenza and model year 2015 and newer Chorus, Record and Super Record - Not compatible with pre 2015 Campagnolo drivetrains - Drivetrain Speeds: 11 - Cage Length: Medium - Chain Wrap Capacity (teeth): 37 teeth - Largest Cog: 32