ROTOR crank 3D30 110 mm Compact for race
Based on the successful 3D + crank rotor has developed the 3D24 crank system. The "Trinity Drilling System" was in 3D24 extended so that the crank has 3 holes in the entire length. With the bores material was removed from the center, the "neutral fiber" of the crank arm. This material contributes only to the least extent to sustainability of a component and can be omitted without any negative consequences. The necessary stiffness and stability is achieved with lightweight construction oversized outer diameter!
The shaft is designed with a 24 mm outer diameter as BB24 and can always use the inner bearing in frame with BSA, BBright (Cervélo) and BB30 recording be driven.
The compact 110 mm - bolt circle diameter provides a greater variety of chainring options.
bolt circle diameter : 110 mm | 5 hole
Standard shaft: BB24 (Hollowtech)
Material crank arms, Spider: 7050 aluminum
Material shaft: steel
Length crank arm: 170, 172.5, or 175 mm
Weight: 524g (172.5 mm)
Delivery: crank arms (left, right), shaft, spacer, chain ring bolts and operating instructions