Materials: The valve body are CNC machined from 6061 T-6 anodized aluminum

The 160mm length provides ample leverage for tough tyre beads and tight pedals and then

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With optimised material concentrated at the brace and seal area

it also shields your eyes from the beaming sun

Praxis Works PF30 Bottom Bracket - 24mm - PF30 - 68-73mm Shell Needs Images Materials: The valve body areThe Praxis Works PF30 Bottom Bracket allows riders to use their Shimano Hollowtech II 24mm spindle cranks in a frame with a 73mm BB30 PF30 bottom bracket shell. To do this, Praxis designed a specialised sleeve to compensate for the extra space and they are made precisely to Shimano bearing stance & chain line spec. Who's this item for: These BB's are a great solution for anyone wanting to run their Hollowtech II cranks in a frame with a BB30 or PF30