Bottom Brackets

Campagnolo ProTech bottom brackets feature a patented external sealing ring design that protects a strong, resilient fiberglass-charged polyamide central tube from the harmful ingress of water, mud and grit. - Designed specifically for gravel riding and racing to protect against water, mud & grit

Campagnolo's Power-Torque OS-Fit Integrated Bottom Bracket Cups let you install your Power-Torque crankset (sold separately) into an oversize bottom bracket shell. They are constructed from anodized aluminum for low weight and excellent durability. And, they're available to fit frames with BB30 and BB86 bottom bracket shells.

The Hellbender70 bottom bracket utilizes a bearing made of 440C stainless steel, providing exceptional ride quality and reliability. The stainless steel bearing in the Hellbender 70 strikes a perfect balance between value and lasting performance. - 440C stainless steel bearings, dual lip seal, marine grease - Machined aluminum cups

The Hellbender 70 bottom bracket utilizes a bearing made of 440C stainless steel, providing exceptional ride quality and reliability. The stainless steel bearing in the Hellbender 70 strikes a perfect balance between value and lasting performance. - 440C stainless steel bearings, dual lip seal, marine grease - Machined aluminum cups

The Hellbender 110 Bottom Bracket provides an incredible mix of performance and longevity through the inclusion of Enduro XD-15 ceramic bearings. These bearings feature nitrogen infused stainless steel races that will not rust or corrode paired with Silicon Nitride ceramic balls. - Enduro XD-15 ceramic ball bearings are made from pure silicon nitride material with extreme high density and uniform compaction - The race material is an advanced stainless alloy that is nitrogen infused and will not rust or corrode - Dual stage anodize black and gold machined aluminum bottom bracket cups - Kluber NBU52 grease runs better and smoother with time and is highly resistant to being washed out - Designed for use with 30mm spindles

The Hellbender 110 Bottom Bracket provides an incredible mix of performance and longevity through the inclusion of Enduro XD-15 ceramic bearings. These bearings feature nitrogen-infused stainless steel races that will not rust or corrode paired with Silicon Nitride ceramic balls. - PF30 for 30mm Spindles - Lifetime Guarantee

Why We Make It We build bearings, so we build bottom brackets. The humble threaded bottom bracket is often the first part installed on a new frame, and the last one the rider thinks about during the life of the bike, but the bottom bracket has a direct effect on pedaling efficiency (read: speed). This is where you put your power into the bike. Having the absolute best interface between your effort and your bike’s forward momentum makes your ride better. The Threadfit™ 24 is how we make bikes that take 24mm cranks the best they can be. Why You Want It ThreadFit™ 24 fits 24mm cranks in BSA bottom bracket shells. Our ThreadFit™ 24 bottom bracket is designed and built to be durable, serviceable, and silent. Manufactured to create the most precise interface between your frame’s bottom bracket shell and your cranks, it makes your cranks spin lightly and easily, without interference, for the lifetime of your bike (with a little regular service). King’s legendary, angular-contact bearings, both steel and ceramic, are the best in the industry, and actually get faster over time, as their contact surfaces wear. You want this bottom bracket because it offers super low drag. You want this bottom bracket, because it can be opened, cleaned and repacked for years of faithful service. You want this bottom bracket, because you don’t want to think an awful lot about your bottom bracket. Our Threadfit™ 24 bottom brackets come in an array of beautifully anodized colors and each one includes a Fit Kits that allow our ThreadFit™ 24 to be used with a wide selection of road and mountain bike cranks. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Available in 8 beautifully anodized colors - A Fit Kit is required for use and included in the purchase prices - Ceramic bearing upgrade available

Why We Make It We build bearings, so we build bottom brackets. The humble threaded bottom bracket is often the first part installed on a new frame, and the last one the rider thinks about during the life of the bike, but the bottom bracket has a direct effect on pedaling efficiency (read: speed). This is where you put your power into the bike. Having the absolute best interface between your effort and your bike’s forward momentum makes your ride better. The Threadfit™ 24 is how we make bikes that take 24mm cranks the best they can be. Why You Want It ThreadFit™ 24 fits 24mm cranks in BSA bottom bracket shells. Our ThreadFit™ 24 bottom bracket is designed and built to be durable, serviceable, and silent. Manufactured to create the most precise interface between your frame’s bottom bracket shell and your cranks, it makes your cranks spin lightly and easily, without interference, for the lifetime of your bike (with a little regular service). King’s legendary, angular-contact bearings, both steel and ceramic, are the best in the industry, and actually get faster over time, as their contact surfaces wear. You want this bottom bracket because it offers super low drag. You want this bottom bracket, because it can be opened, cleaned and repacked for years of faithful service. You want this bottom bracket, because you don’t want to think an awful lot about your bottom bracket. Our Threadfit™ 24 bottom brackets come in an array of beautifully anodized colors and each one includes a Fit Kits that allow our ThreadFit™ 24 to be used with a wide selection of road and mountain bike cranks. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Available in 8 beautifully anodized colors - A Fit Kit is required for use - Ceramic bearing upgrade available

Why We Make It We build bearings, so we build bottom brackets. T47 is a standard we helped develop, an answer to the imprecise and often loud press fit bottom brackets that appeared on the market a few years ago. T47 offers the benefits of larger bottom bracket shells, mainly frame stiffness, with the upsides of traditional, threaded bottom brackets, precision and quietness. Why You Want It ThreadFit T47 30x fits 68mm and 73mm shell widths with 30mm spindles. This bottom bracket comes packed with King's legendary, angular-contact bearings, either steel or ceramic. These are the best bearings in the industry, and actually get faster over time, as their contact surfaces wear. You want this bottom bracket because it offers super low drag. You want this bottom bracket, because it can be opened, cleaned and repacked for years of faithful service. You want this bottom bracket, because you don't want to think an awful lot about your bottom bracket. - Steel Bearings - King Lifetime Warranty - Legendary made-in-house bearings - Ceramic bearing upgrade available - Threaded security with PressFit 30 shell stiffness - A Fit Kit is required for use - Engineered, manufactured and assembled in Portland, Oregon USA - Uses Chris King bottom bracket cup tool for installation

Enduro's entry level bottom bracket solution - Compatible with 24mm crankset spindles on BB86 framesets - ABEC-3 bearings - Machined Delrin cups, Black Vendor Part # BK-6014

Enduro's entry level bottom bracket solution - Compatible with Sram GXP crankset spindles on BB92 framesets - ABEC-3 bearingss - Machined Delrin cups, Black Vendor Part # BK-6005

Designed for BB86/BB92 frames (with 41mm ID press-fit BB shell) - Compatible with 30mm crankset spindles - Flanged, double-row bearings with anti-corrosion Black Oxide/Magnetite treated, 52100 High-Carbon Chromium alloy races paired with grade 10 balls. Vendor Part # BK-7018

Enduro's entry level bottom bracket solution - Compatible with Sram GXP crankset spindles on BB86 framesets - ABEC-3 bearings - Machined Delrin cups, Black Vendor Part # BK-6019

Enduro's entry level bottom bracket solution - Compatible with 24mm crankset spindles on BB30 framesets - ABEC-3 bearings - Machined Delrin cups, Black Vendor Part # BK-6018

Enduro's entry level bottom bracket solution - Compatible with Sram GXP crankset spindles on PF30 framesets - ABEC-3 bearings - Machined Delrin cups, Black Vendor Part # BK-6007

Enduro's entry level bottom bracket solution - Compatible with Sram GXP crankset spindles on BB30 framesets - ABEC-3 bearings - Machined Delrin cups, Black Vendor Part # BK-6016

440C stainless steel bearings pressed into precision machined aluminum T47 cups that simply thread directly into the BB shell. The T47A (Asymmetrical) specification is a new thread-in standard that has is similar in concept to BBRight (but with threads) that been used by a couple brands, including Cervelo and Factor. All Enduro bottom brackets are manufactured to the highest standards at the Enduro Bearings production facility in California, USA. For T47A frames using a 24mm spindle crank set. The bearings seat externally on the bottom bracket. Vendor Part # BKSR-0216

440C stainless steel bearings pressed into precision machined aluminum T47 cups that simply thread directly into the BB shell. The T47A (Asymmetrical) specification is a new thread-in standard that has is similar in concept to BBRight (but with threads) that been used by a couple brands, including Cervelo and Factor. All Enduro bottom brackets are manufactured to the highest standards at the Enduro Bearings production facility in California, USA. For T47A frames using a 30mm BB386 spindle crank set. The bearings seat externally on the bottom bracket. Vendor Part # BKSR-0286

This TorqTite BB solution utilizes 440C stainless steel radial bearings pressed into precision machined aluminum TorqTite cups that simply thread together in the BB shell for a simple, secure, creak-free installation in non-threaded/press-fit BB shells. 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal. All Enduro bottom brackets are manufactured to the highest standards at the Enduro Bearings production facility in California, USA. Requires Torqtite wrench for installation. Vendor Part # BKSR-0162

This TorqTite BB solution utilizes 440C stainless steel radial bearings pressed into precision machined aluminum TorqTite cups that simply thread together in the BB shell for a simple, secure, creak-free installation in non-threaded/press-fit BB shells. 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal. All Enduro bottom brackets are manufactured to the highest standards at the Enduro Bearings production facility in California, USA. Requires Torqtite wrench for installation. Vendor Part # BKSR-0122

This TorqTite BB solution utilizes 440C stainless steel radial bearings pressed into precision machined aluminum TorqTite cups that simply thread together in the BB shell for a simple, secure, creak-free installation in non-threaded/press-fit BB shells. 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal. All Enduro bottom brackets are manufactured to the highest standards at the Enduro Bearings production facility in California, USA. For PF30 bottom bracket shell, for use with less than 104mm length spindle crankset. Requires Torqtite wrench for installation. Vendor Part # BKSR-0132

This TorqTite BB solution utilizes 440C stainless steel radial bearings pressed into precision machined aluminum TorqTite cups that simply thread together in the BB shell for a simple, secure, creak-free installation in non-threaded/press-fit BB shells. 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal. All Enduro bottom brackets are manufactured to the highest standards at the Enduro Bearings production facility in California, USA. For PF30 bottom bracket shell, for use with 104mm + length spindle crankset. Requires Torqtite wrench for installation. Vendor Part # BKSR-0117

Designed for BB86/BB92 frames (with 41mm ID press-fit BB shell) - Compatible with 30mm crankset spindles. - XD-15 Ceramic-Hybrid cartridge bearings pressed directly into the BB shell, that feature - Deep-groove raceways allowing for maximum sized Grade 3 Silicon Nitride ceramic balls, increased contact area and improved performance and longevity. Vendor Part # BKC-7021

Designed for frames with threaded BSA 68mm or 73mm BB shell - Compatible with SRAM DUB cranksets (28.99mm spindle) - Stainless steel angular contact bearings: 440C Stainless steel balls and races - Machined aluminum cups, Black ano Vendor Part # BKS-6056

Designed for frames with threaded BSA 73mm BB shell - Compatible with cranksets with a 24mm spindle. - Stainless steel angular contact bearings: 440C Stainless steel balls and races - Machined aluminum cups, Black ano Vendor Part # BKS-6042

Designed for frames with threaded BSA 68mm BB shell - Compatible with cranksets with a 24mm spindle. - Stainless steel angular contact bearings: 440C Stainless steel balls and races - Machined aluminum cups, Black ano Vendor Part # BKS-6041

Fits T47 frames with threaded BB shell (46mm ID x 68mm wide) - Compatible with most 24mm crank spindles (Shimano, FSA, etc) - Stainless bearings: Angular contact, 440C Stainless steel balls and races - Machined alloy cups - Made in the USA - Weight: 133g Vendor Part # BKS-0231

Fits T47 frames with threaded BB shell (46mm ID x 68mm wide) - Compatible with most 30mm crank spindles, splindle length under 90mm - Stainless bearings: Angular contact, 440C Stainless steel balls and races - Machined alloy cups - Requires TorqTite BB cup wrench for installation (sold separately) - Made in the USA - Weight: 105g Vendor Part # BKS-0201

Fits T47 frames with threaded BB shell, internal bearing cup for 86mm shell frames - Compatible with most 30mm crank spindles, spindle length 104mm or longer - Stainless bearings: Angular contact, 440C Stainless steel balls and races - Machined alloy cups - Made in the USA Vendor Part # BKS-0241

Fits T47 frames with threaded BB shell, internal bearing cup for 86mm shell frames - Compatible with most 24mm crank spindles - Stainless bearings: Angular contact, 440C Stainless steel balls and races - Machined alloy cups - Made in the USA Vendor Part # BKS-0246