PF30-L Shallow insert for metal frames, SuperSix and P5 1st Gen 105 BR-RS785

105 BR-RS785

Aero Kolossos is built with Kogel ceramic bearings and road seals

check that your crank spindle is long enough for the wider BB shell

BR-R8070-F

PF30-L Shallow insert for metal frames, SuperSix and P5 1st Gen 105 BR-RS785This bottom bracket is the same as our PF30, but with a shallower insert depth. Our standard PF30 bottom bracket uses a deep insert for the strongest possible connection to the frame. This causes problems on some metal frames with wires running into the chain stay or with the internal cable guides on some frames. For these frames we have designed the PF30 L, same bottom bracket minus the insert guide and a few mm of contact area. This bottom bracket