Sram Crankset Spindles Explained

But whereas a BB30 sealed bearing is pressed directly into the bb shell, a PF30 system has cups that are pressed into the shell. The drive and non-drive side's ...

PF30 is also a PressFit type bottom bracket and thus no thread on the outside of the bottom bracket. It uses the same bearings as BB30. The only difference is ...

2017年12月11日 — Typically a BB30 shell is made of aluminum, where a PF30 shell can be made out of all carbon. We need more standards!! As if two new standards, ...

Pressfit 30 BB適合碳纖維或鋁合金BB30跑車曲柄組。不銹鋼軸承預先安裝在性能可靠的塑膠碗。相容BB386 Evo、PF30 和BBRight車架標準。含間隙設計可相容Di2 或其他電子 ...

Pressfit 30 BB適合碳纖維或鋁合金BB30跑車曲柄組。不銹鋼軸承預先安裝在性能可靠的塑膠碗。相容BB386 Evo、PF30 和BBRight車架標準。含間隙設計可相容Di2 或其他電子 ...

2019年3月13日 — For example, a BB30/PF30 bottom bracket has the narrowest shell width of any of the standards, whilst being designed for large 30mm spindles.

2019年5月29日 — A PF30 frame has a shell slightly larger than BB30 (46mm compared to 42mm). The bearings are pressed into cups which are then pressed into the ...