Until the end of 2010 Pegoretti frames accept a standard 1 1/8 headset. The diameter of the head tube for this standard varies from a minimum of 36 to a maximum of 36.5 mm for steel frames. This entailed a limit in terms of coupling with the down tube, as larger diameters of 36.5 requiring adapted shaped or ellipsoid down tube in the area of the joint. Using a 38mm diagonal coupling was rather difficult.

At the end of 2010 Dario Pegoretti decided to increase the diameter of the head tube in order to obtain an optimal coupling in terms of milling and coupling with the head tube, what interested him was to be able to use a down tube free from crushed forms and adaptations as with the old diameter. He decided to raise this parameter up to 40.2mm, of course this has required the development of a dedicated headset.

Chris King has produced a modified diameter and insertion depth set for this headtube and called it D11. The result is a reliable, strong and perfectly round joint. During the development of the headset and the resulting head tube Daro decided to increase the diameter of the down tube which now stands at 39mm.

The new headset design continues to use the proven bearings and components of King's standard headsets, but the cups have a larger diameter skirt where they are pressed into the head tube. Also this skirt is longer than the standard giving better support to the head tube. The shape of the cups has been modified to flow better with steel and / or titanium frames.

This headset works equally well with the Falz fork and other 1-1/8” forks as the bearing sizes have not been changed. It features Chris King’s Grip-Lock fastening system as well as King’s 10-y

Chris King led the threadless headset revolution with their NoThreadSet. This iconic, incredibly durable piece of equipment embodies the limitless potential found in simple, high-quality design. Equally appropriate on your road or mountain bike, the NoThreadSet has been ridden to World Cup titles on the trail and to victory at the Tour de France. Featuring precision-machined aluminum cups, King's own in-house stainless steel bearings, a stainless steel base plate, and all ten Chris King colors, each headset is a statement piece that will likely outlast your bike! This model fits bikes with a non-tapered 1-inch headtube and threadless steerer tube. The Sotto Voce models feature toned down graphics that let you sport your Chris King style in a more subtle manner.

Why We Make This Headtube and fork steerer standards have proliferated in recent years, but for a long, long time these variables were more fixed, so we made thousands upon thousands of NoThreadsets™ to serve bikes with unthreaded fork steerers. We made them in a variety of diameters, and everyone was happy in the land. We still make it, because it's still a great headset for all those bikes that are still rolling through the world with a headset that will never die. Why You Want It For decades our NoThreadSet™ set the standard for quality headset function delivering precision performance to numerous world champions, grand tour winners, and aspiring riders around the world. Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) (1-1/8" only) - Available in 9 beautifully anodized colors in both bold and sotto voce marking options - Responsibly lightweight - Options to fit 1" and 1-1/8" straight steerer tubes - 1-1/8" available in Matte finish

Chris King led the threadless headset revolution with their NoThreadSet. This iconic, incredibly durable piece of equipment embodies the limitless potential found in simple, high-quality design. Equally appropriate on your road or mountain bike, the NoThreadSet has been ridden to World Cup titles on the trail and to victory at the Tour de France. Featuring precision-machined aluminum cups, King's own made-in-house stainless steel bearings, a stainless steel base plate, and all ten Chris King colors, each headset is a statement piece that will likely outlast your bike! The Sotto Voce models feature stealthy, toned down graphics that let you show your Chris King pride in a more subtle manner.

The Inset headset offers Chris King's trademark quality and durability in a low-stack configuration sized for contemporary headtube dimensions. King's legendary, made-in-house bearings still form the centerpiece of the Inset headsets, with precisely machined aluminum cups and headset caps available in all ten classic Chris King colors. The Inset 7 is compatible with tapered 1-1/8 - 1-1/2-inch forks and frames using a 44mm headtube.

Why We Make This Headtube and fork steerer standards have proliferated in recent years, but for a long, long time these variables were more fixed, so we made thousands upon thousands of NoThreadsets™ to serve bikes with unthreaded fork steerers. We made them in a variety of diameters, and everyone was happy in the land. We still make it, because it's still a great headset for all those bikes that are still rolling through the world with a headset that will never die. Why You Want It For decades our NoThreadSet™ set the standard for quality headset function delivering precision performance to numerous world champions, grand tour winners, and aspiring riders around the world. Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. - Engineered, manufactured, and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) (1-1/8" only) - Available in 9 beautifully anodized colors in both bold and sotto voce marking options - Responsibly lightweight - Options to fit 1" and 1-1/8" straight steerer tubes - 1-1/8" available in Matte finish

Chris King led the threadless headset revolution with their NoThreadSet. This iconic, incredibly durable piece of equipment embodies the limitless potential found in simple, high-quality design. Equally appropriate on your road or mountain bike, the NoThreadSet has been ridden to World Cup titles on the trail, and to victory at the Tour de France. Featuring precision-machined aluminum cups, King's own in-house stainless steel bearings, a stainless steel base plate, and all ten Chris King colors, each headset is a statement piece that will likely outlast your bike!

The 40-Series is the workhorse of Cane Creek's headset line-up. Representing the balance of performance, durability and value, the series incorporates all the features necessary for a robust, lightweight, long-lasting headset. Zero stack uppers press into head tube with very little stack height. Lowers are either zero stack or external cup. - Sealed black oxide bearings - Carbon-friendy compression ring captured in top cover, keeping shims in place - Steel crown race with integrated seals - Interlok spacer compatible - Compatible with tapered 1-1/8" to 1-1/2" steerer tubes, or straight 1-1/8" steerers with a conversion crown race (sold separately)

Cane Creek headsets with Hellbender stainless steel bearings with increased sealing elements and more grease in relation to the comparable 110 bearing. - Designed to bridge the gap between the 40-series and 110-series headsets

- Bearing Type: Cartridge - Weight: 125g - Crown Race: 40 - S.H.I.S. Lower: ZS56 - S.H.I.S. Upper: ZS44 - S.H.I.S. Stem Clamp Diameter: 28.6 Threadless

A solid choice for 1-1/8in frames, the Orbit Equipe features a sturdy steel lower cup for maximum durability. The top cup is forged alloy, with an alloy top cover. Inside are two low maintenance, easy-to-replace sealed cartridge angular contact bearings. - Bearing Type: Cartridge - Weight: 117g - Crown Race: 30 - S.H.I.S. Lower: EC34 - S.H.I.S. Upper: EC34 - S.H.I.S. Stem Clamp Diameter: 28.6 Threadless

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek headsets. The 40 Series has light, tough, and beautiful machined 6061 T6-aluminum cups that are internally relieved for even more gram shaving. You also get Cane Creek's corrosion-resistant black-oxide sealed bearings and quality seals throughout to keep the grease in and the dirt out, including Cane Creek's Clip Seal that completely seals the top assembly.

ABI Headset Bearing for new builds or replacements.

FSA bearings that set directly into the frame without the use of pressed in cups. - 36/45 degrees is Cane Creek-compatible - 45/45 degrees is Campagnolo-compatible

Campagnolo Headset Bearings

FSA Standard Headset Bearings

Replacement headset bearings from FSA. - Compatible with most Trek MTB integrated headset systems - Sealed bearing for long life - Compatible with Knock Block Headsets

FSA Standard Headset Bearings

Converts quill style forks to use threadless stems.

FSA Standard Headset Bearings

Crown races for Cane Creek headsets fit a variety of lowers and crown race seat diameters. - Compatible with 10-, 40- and 110-Series headsets and backwards compatible with S and XX Series - Integral mold seals keep out the elements - Durable steel construction

FSA Standard Headset Bearings

- Machined aluminum spacers for tuning stem height - Black spacers with white FSA graphic - 5mm and 10mm Spacers are sold individually - 1-1/8" Spacer Kit includes: (3) 3mm, (4) 5mm, (3) 10mm, (2) 20mm