BSD Substance XL BB KitThis high-quality bottom bracket features precision sealed cartridge bearings in XL dimensions, meaning if you have a BMX and need to smoothen up those tired old bearings, this kit has you covered. Additionally, its available in 24mm axle sizes for a perfect fit with your frame, so you can get back to tricking it out at the park and street in style.Features: XL version to fit 24mm crank spindles Precision sealed cartridge bearings Fully CNC'd 6061 aluminium spacers Spacer kit to ensure correct fitBuy BSD Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

BSD Substance Mid BB KitThis high-quality bottom bracket features precision sealed bearings in mid dimensions, meaning if you have a BMX and need to smoothen up those tired old bearings, this kit has you covered. Additionally, its available in 19mm and 22mm axle sizes for a perfect fit with your frame, so you can get back to tricking it out at the park and street in style.Features: Two sealed bearings CNC-machined spacers Tube spacer Sprocket bolt and spacersBuy BSD Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

BSD Substance Mid BB KitThis high-quality bottom bracket features precision sealed bearings in mid dimensions, meaning if you have a BMX and need to smoothen up those tired old bearings, this kit has you covered. Additionally, its available in 19mm and 22mm axle sizes for a perfect fit with your frame, so you can get back to tricking it out at the park and street in style.Features: Two sealed bearings CNC-machined spacers Tube spacer Sprocket bolt and spacersBuy BSD Components from Chain Reaction Cycles, the World's Largest Online Bike Store.