ROTOR crank arms R-Raptor MTB 1-fold
The Rotor R-Raptor crank was specially developed for the ever-growing gravity scene in mountain biking. However, the R-Raptor is not a crank set in the traditional sense, but a modular system of different crank arms, crankshafts, chainrings and bumpers. Thus, you can adapt the R-Raptor both technically and visually to your bike.
The crank arms are machined from 100% aluminum 6082 and combine lightweight construction with high robustness. This makes the R-Raptor only 50 grams heavier compared to Rotor's high-end R-Hawk crankshaft. To protect the crank arms against abrasion and stone chips they are covered with rubber bumpers. These are available in 7 different colors and make the crank so an eye-catcher on your bike. Compatible is the crank system with the round rotor NoQX1 or the oval QX1-Rings Direct-Mount chainrings. For a coherent overall picture, Rotor has optically adapted the chainrings to the martial design of the R-Raptor. To change the modular system as quickly as possible, only an 8 mm Allen key is required to change the sprocket and crankshaft. With three different crank lengths (standard, BOOST and downhill) with a diameter of 30 millimeters, the crank system is suitable for all common frame and bottom bracket standards.
intended use : All-Mountain, Enduro
Material crank arms: aluminum 6082
Crank lengths: 165, 170 mm or 175 mm
Chainring mount: Direct Mount | rotor
chain line : 51 mm or 54 mm BOOST
Q-factor: 164 mm, 170 mm BOOST or 179 mm DH (depending on axis length)
Compatibility Chains: 10-speed , 11-speed and 12-speed
Compatibility Chainrings: Rotor QX1 or NoQX1
Weight: 715g (175mm crank arms, standard axle and QX1 chainring 30 teeth, manufacturer's specification)
Scope of delivery: Crank arms (left, right)
An overview of the frame and inner bearing compatibility of the R-Raptor crank can be found here .