ROTOR crank 3D30 110 mm Compact for race
Based on the successful 3D + crank rotor has developed the 3D30 crank system. The "Trinity Drilling System" was in 3D30 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 3D30 has the perfect weight-stiffness ratio.
The shaft is designed with 30 mm outside diameter as BB30 and can always use the inner bearing in frame with BSA, BBright (Cervélo) and BB30 are driven.
The compact 110 mm - bolt circle diameter provides a greater variety of chainring options.
bolt circle diameter : 110 mm | 5 hole
Standard shaft: BB30
Material crank arms, Spider: 7050 aluminum
Material shaft: aluminum
Length crank arm: 170, 172.5, or 175 mm
Weight: from 510 g (weighed in 5-arm, 110 mm)
Delivery: crank arms (left, right), shaft, spacer, chain ring bolts and operating instructions
INFO: contrary to the picture delivery with OCP Spider!