Get free shipping, on most items, with your $50 purchase today! Same day shipping on most orders if placed by 3pm PST.
This offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and some exclusions apply.
Some large and/or heavy items are subject to additional oversize charges that are separate from standard shipping costs.
Bike Build Process
All bikes are built, tested, tuned, and ready to ride upon shipment. The bike build process typically takes 2-3 days to complete depending on the bike model and the complexity of the build.
Orders for in-stock items placed by 3PM PST usually ship on the same day. Orders that include special-order or backordered items may be subject to shipping delays depending on product availability. Refer to estimated delivery times in cart when selecting shipping options.
Chris King Threadfit 24mm Bottom BracketChris King prides
their bottom brackets on the steel sealed bearings which are authentically made in-house. The meticulous process of crafting the signature bearings ensures uncompromised durability and smoothness. The ingenious angular contact bearing design ...
Rotor BSA Bottom BracketEnduro Grade 5 ceramic bearings
are housed in CNC T6 heat treated 7075 aluminum cups and sealed in using quality silicone seals. This is a smooth rolling and light weight Bottom bracket for you 24mm spindle Shimano ...
Shimano XTR BB94-41A Bottom Bracket Designed to fit
89. 5mm to 91mm press-fit bottom bracket shells, the Shimano XTR BB94-41A shaves 18 grams from its predecessor and offers improved sealing from harsh elements. A composite shell houses and seals steel ...
Please select more than 2 or more bikes for comparison
Bottom Bracket Conversion Kits
You may not be able to change the bottom bracket shell on your bike, but a bottom bracket conversion kit lets you adapt your bike to almost any crank and drivetrain setup you want. JensonUSA carries a wide variety of solutions including eccentric bottom brackets for single speed setups; adaptors that let you run a traditional threaded bottom bracket in a frame that has a BB30, PF30 or other press-fit BB shell; plus any kind of spacer, washer, bearing or clip you might need.
Eccentric bottom brackets help optimize the performance of a single speed drivetrain. The offset opening allows you to adjust chain tension by simply rotating the bottom bracket. We offer eccentric bottom brackets from specialist brands including Wheels Manufacturing, Niner and Orgin8.
In addition to adaptors and conversion kits, we also have a full selection of bottom bracket replacement parts. From sealed bearing kits to crank bolt assemblies, we stock everything you might need to repair or overhaul a bottom bracket without having to replace the whole unit.
So don’t give up on any mismatched frame and drivetrain setups. With our collection of bottom bracket conversion kits and adaptors from brands like SRAM, Easton, FSA, Truvativ, Wheels Manufacturing, Niner, Race Face, Surly and Origin8, there’s a good chance we can help you find a solution. If you have any questions, feel free to call one of our expert Gear Advisors today at 951-234-7554.