Bottom Brackets

The Stelv 24mm External Bottom Bracket features cold-forged, CNC-machined alloy cups, dual-labyrinth bearing covers, and precision sealed steel bearings for smooth performance and long durability. Designed to fit all standard 24mm crank spindles, this bottom bracket is compatible with frames using a 68mm or...

Box Two™ 24mm External bottom brackets feature cold-forged, CNC-machined alloy cups, dual-labyrinth bearing covers, and precision sealed bearings. They are the perfect match to Box Three™, Four ™ cranks, and the ultimate upgrade to the budget BBs sold with most cranksets. Box Two™, 24mm...

Several of the upper tier Box bottom brackets were engineered using our Oversized Technology. These were developed in concert with our crank sets. We all know that there is no use pushing hard on your pedals if you can’t deliver most of that power...

Box Two M35 BB30 / PF30 Bottom Bracket Several upper-tier Box bottom brackets were engineered around Box’s Oversized Technology™ platform and developed specifically in conjunction with Box cranksets. Designed with a strong focus on pedaling stiffness and efficient power delivery, the M35 system maximizes...

Dangerboy Titanium Square Taper Bottom Bracket TI BB Engineered for young BMX racers and performance-focused riders, the Dangerboy Titanium Square Taper Bottom Bracket delivers exceptional strength and ultralight performance. Built with precision-sealed ABEC-5 bearings, CNC-machined alloy cups, and a hollow titanium spindle, this bottom...

Stripping existing Rocket Titanium BB from all what you don’t really need while pedaling ended up with one of the lightest, if not the lightest SQ Ti BB on the market. Seven sizes from 105mm with hollow Ti CNC spindle to 122 mm with...

Euro square BMX Racing bottom bracket.Sealed bearings.Widths: 118 mm.Outside diameter: 34.5 mm.Weight: 330g (118mm with screws).

Part Number: PRAXIS 68-3001R Compatible with: Meybo Holeshot 2024 Meybo HSX Alloy 2023 24mm spindle cranksets The Praxis Works Shimano BB30/PF30 Road Bottom Bracket is designed for installing Shimano Hollowtech II 24mm spindle road cranksets into BB30 and PF30 road frames. Featuring premium Enduro...

Part Number: PRAXIS 68-4101R Compatible with: Meybo Holeshot 2024 Meybo HSX Alloy 2023 30mm spindle cranksets The Praxis Works M30 Thru Bottom Bracket is engineered for high-performance 30mm spindle cranksets using threaded BSA frame standards. Featuring a 30mm drive-side and 30mm non-drive-side bearing configuration,...

SD BB30 THREADED LOCK BOTTOM BRACKET - 24MM The SD Components BB30 bottom bracket is specially designed to meet the rigorous demands of BMX Racing. It has been optimized to accommodate a crankset with a 24mm axle on a frame with an external width...

SD BB30 THREADED LOCK BOTTOM BRACKET - 30MM The SD Components BB30 bottom bracket is specially designed to meet the rigorous demands of BMX Racing. It has been optimized to accommodate a crankset with a 30mm axle on a frame with an external width...

Product Code: 86-4001S The Praxis Works M30 bottom bracket is designed specifically for installing Praxis M30 spindle cranksets into BB86 Road, BB90 MTB, and BB92 MTB frames. Featuring Praxis’ unique integrated bearing design, the outer bearing race also functions as the press-fit outer surface,...

*  Smooth rolling precision Japanese bearings. And they know how to make one heck of a fast bearing!! *  Our custom designed alloy dust caps sized perfectly to eliminate the need for plastic or alloy spacers to fit Shimano DXR cranks and many others. *  Compatible with...

Reference: SDCS15BBGR A reliable bottom bracket designed to provide the finishing touch to your bike. Compatibility: ✔ Expert Lite, Pro, and Pro Hollow Crank ✔ Euro Style Specifications: • Weight: 90g   Built for performance and durability, this bottom bracket ensures a smooth and...

Dangerboy 24mm External bottom brackets feature cold-forged, CNC-machined alloy cups, dual-labyrinth bearing covers, and precision ceramic sealed bearings. Dangerboy 24mm External Bottom Brackets are designed to fit all standard 24mm crank spindles and frames with 68 or 73 x BC 1.37-inch bottom bracket. Available...

Dangerboy 24mm External bottom brackets feature cold-forged, CNC-machined alloy cups, dual-labyrinth bearing covers, and precision steel sealed bearings. Dangerboy 24mm External Bottom Brackets are designed to fit all standard 24mm crank spindles and frames with 68 or 73 x BC 1.37-inch bottom bracket. Available...

SKU: 86-4201W The Praxis Works M30-THRU PF41 bottom bracket is designed for installing 30mm spindle cranksets into BB86, BB90, and BB92 press-fit frames. Featuring Praxis’ precision integrated bearing design and durable steel construction, this bottom bracket provides smooth performance, improved stiffness, and reliable long-term...

  Intended for young riders looking for excellent value for money, the POSITION ONE cartridge bottom bracket is fitted with sealed bearings for sealed and frictionless pedaling. It has a square drive axle of JIS standard which is suitable for cranks of the same...

Press Fit bottom bracket 86 / 92mm.Sealed bearings.Internal Diameter: 41mm.For 24mm spindles.   PRODUCT DETAILS Data sheet BOTTOM BRACKET Press Fit AXLE DIAMETER 24mm

The SD BB386 Bottom Bracket is a high-performance press-fit bottom bracket engineered for BMX race and performance applications requiring maximum stiffness, smooth bearing performance, and compatibility with both 24mm and 30mm spindle cranksets. Designed for BB386 press-fit frames with a 46mm internal diameter and...

SD BB386 SPINNING BOTTOM BRAKCET - 24MM This SD Spinning bottom bracket is CNC machined from aluminum. It allows the installation of a crankset with a 24mm spindle on a frame with an external width of 86mm and an internal diameter of 46mm. This...

SD BB86 SPINNING BOTTOM BRACKET - 24MM This SD Spinning bottom bracket is CNC machined from aluminum. It allows the installation of a crankset with a 24mm spindle on a frame with an external width of 86mm and an internal diameter of 41mm. This...

SD BB30 SPINNING BOTTOM BRAKCET - 24MM This SD Spinning bottom bracket is CNC machined from aluminum. It allows the installation of a crankset with a 24mm spindle on a frame with an external width of 68mm and an internal diameter of 42mm. This...

BottomPress BBO-21 – BB86 BMX Bottom Bracket for 24mm Spindles The BottomPress BBO-21 is a press-fit bottom bracket designed for BB86 frame standards using 24mm spindle cranksets. Featuring durable chrome steel bearings and lightweight press-fit construction, the BBO-21 delivers smooth performance and reliable power...

Part Number: PRAXIS 68-4001R The Praxis Works M30 BB30/PF30 Road Bottom Bracket is specifically designed for installing Praxis M30 alloy spindle road cranksets into 68mm BB30 or PF30 road frames. Featuring Praxis’ patented collet system, this bottom bracket delivers superior bearing alignment, exceptional stiffness,...

SKU: 86-6101 The Praxis Works M30-THRU PF386EVO bottom bracket is designed for installing Box Two and other 30mm spindle cranksets into PF386EVO press-fit road frames. Featuring Praxis’ durable press-fit cup system and high-quality cartridge bearings, this bottom bracket delivers smooth performance, improved stiffness, and...

SKU: 86-6001 Compatible with Meybo HSX 386EVO frames and Box Two 30mm spindle cranksets. The Praxis Works M30-386EVO bottom bracket is designed specifically for installing Praxis M30 alloy spindle cranksets into PF386EVO press-fit frames. Featuring Praxis’ proprietary 30mm drive-side and 28mm non-drive-side bearing configuration,...

SKU: 68-4202 The Praxis Works M30 THRU bottom bracket is engineered specifically for Praxis LYFT Carbon cranks, RaceFace Cinch and ERA cranksets, Rotor REX MTB cranks, and Cane Creek eeWings. Utilizing Praxis’ patent-pending collet design, the M30 THRU system delivers exceptional stiffness, precise bearing...

We couldn't ignore the undeniable truth about bottom brackets. Traditional BBs lack the space necessary for the pedal stiffness you deserve. That's why we designed the B52 Bottom Bracket to bring Oversized Technology into your bike frame, breaking the mold in the bike builder's...

Tangent Chromo Square Tapered Bottom Bracket The Tangent Chromo Square Tapered Bottom Bracket is a reliable, high-quality, and budget-friendly option built for performance. Featuring a Japanese Industry Standard (JIS) square-taper spindle crafted from high-strength chromoly, this bottom bracket offers durability you can count on...

SD BB30 SPINNING BOTTOM BRAKCET - 30MM This SD Spinning bottom bracket is CNC machined from aluminum. It allows the installation of a crankset with a 30mm spindle on a frame with an external width of 68mm and an internal diameter of 42mm. This...

The SD BB86/92 Bottom Bracket is a smooth and reliable press-fit bottom bracket designed for BMX race and performance cycling applications using 24mm spindle cranksets. Engineered for efficient power transfer and dependable durability, this bottom bracket is compatible with BB86 and BB92 press-fit frames....

The SD BB86/92 Threaded Lock Bottom Bracket is designed specifically for BMX race applications using 24mm spindle cranksets. Utilizing a threaded lock system, this bottom bracket improves bearing alignment and eliminates many of the common issues associated with traditional press-fit systems, including creaking, movement,...

The Box EB 2401 is one of the most popular and versatile bottom brackets in the Box lineup, designed to fit cranksets using standard 24mm spindle axles. Built for BSA/Euro threaded bottom bracket shells, the EB 2401 combines lightweight alloy cups with durable sealed...

Intended for young riders looking for an excellent quality / price ratio, the Euro POSITION ONE cartridge bottom bracket has an ISIS standard splined shaft which is suitable for cranks of the same standard. It features sealed bearings for tight, frictionless pedaling. It only...