Bottom Bracket Technical Help

Downloadable PDF installation instructions for all Wheels Mfg bottom brackets. If you are not familiar with bicycle service, we recommend having your local specialty bike shop install and maintain your new components.

PF30 Bottom BracketPressFit 30 Bottom Bracket

PF30 Threaded Together Bottom BRacketPressFit 30 Thread Together Bottom Bracket (PF30-THD)

Note: The PF30-THD bottom bracket is designed and manufactured with the drive side cup at a press-fit tolerance, which must be pressed into the frame using a press*. The non-drive side cup outer diameter is slightly undersized so that it can turn in the frame, allowing for the threads to engage and the two cups to tighten together. When installing this bottom bracket, only one notched bottom bracket tool is required.

* Frame tolerances can vary between frame manufacturers. It is possible that our bottom bracket cups are too tight or too loose if your frame is out of spec.

BB86/92 Bottom BracketBB86/92 Bottom Bracket

BB86 Thread TogetherBB86/92 Thread Together Bottom Bracket

Note: The BB86/92 Thread Together bottom bracket is designed and manufactured with the drive side cup at a press-fit tolerance, which must be pressed into the frame using a press*. The non-drive side cup outer diameter is slightly undersized so that it can turn in the frame, allowing for the threads to engage and the two cups to tighten together. When installing this bottom bracket, only one notched bottom bracket tool is required.

* Frame tolerances can vary between frame manufacturers. It is possible that our bottom bracket cups are too tight or too loose if your frame is out of spec.

PF30-OUT Bottom BracketPF30 Outboard Bottom Bracket

BB30 Outboard Bottom BracketBB30 Outboard Bottom Bracket

Eccentric Bottom BracketEccentric (EBB) Bottom Bracket

BSA Road Bottom BracketThreaded Road Bottom Bracket

BSA MTB Bottom BracketThreaded MTB Bottom Bracket

BSA to 30mm Bottom BracketThreaded BSA to 30mm Bottom Bracket

BBRight Thread TogetherBBRight™ Bottom Bracket

Note: The BBRIGHT-OUT bottom bracket is designed and manufactured with the non-drive side cup at a press-fit tolerance, which must be pressed into the frame using a press*. The drive side cup outer diameter is slightly undersized so that it can turn in the frame, allowing for the threads to engage and the two cups to tighten together. When installing this bottom bracket, only one notched bottom bracket tool is required.

* Frame tolerances can vary between frame manufacturers. It is possible that our bottom bracket cups are too tight or too loose if your frame is out of spec.

Bottom Bracket AdaptersBB / Crank Adapters