ROTOR Kurbel 3D+ MTB 2-Speed OPENCYCLE Edition black
ROTOR crank 3D + MTB 2-OPEN CYCLE Edition black
The ultimate OPEN CYCLE Edition in black based on the successful 3D + crank. Extremely light, extremely rigid and ultra-chic. Prepared only for OPEN CYCLE in this design, it fits perfectly on the OPEN 29er MTB frame. Not only the optical, convince the technical values. Using the "Trinity Drilling System" is removed in the 3D + material from the center, "neutral axle" 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 crank is provided with a shaft of 30 mm outer diameter as BB30 and is supported in this version with a BBright Pressfit bottom bracket.
The 2-way translation of 38/24 teeth, ideal for 29er mountain bikes.
PCD: 110 mm wide, 74 mm small sheet | 5 hole Chainring gradation: 38 teeth large sheet | 24 teeth small leaf Standard shaft: BB30 Material crank arms, Spider: aluminum Material shaft: aluminum Length crank: 175 mm Bottom bracket: BBright Pressfit Color: Black