Borrowing its desing from REX1, the forced and CNC´d REX 2 cranks are enhanced by proprietary TDS triple drilling technology to yield the perfect weight-to-stiffness ratio. The REX 2 used ROTOR´s UBB 30 technology, offering a performance upgrade opportunity for almost all mountain bikes on the market - whether they were designed for 30mm cranks or not.
Weight: REX 2.1 (172.5mm length 514 g) / REX 2.2 - (521g)
Spindle: 30mm aluminum alloy
Q-Factor: 163 mm
Chainline: REX 2.1 50.6mm / REX 1.1 Cannondale 56mm / REX 1.2 44.5mm
Material: aluminum alloy 7055 100% CNC-machined
Compatibility: Bottom Bracket BSA , BB89 , BB92 , PF30 , BBRight , Cannondale F-Si Ai (spider sold separately) , Oval and round chainrings , 9 , 10 and 11 Speed