RD4 TRACK

RD4 Track is a highest-quality basic model for Track racing, upgraded by using "MIGHTY COMP", the high-end racing quality crank machined with high precision.


P.C. D. : 130mm
Axle Type : 4-taper (SG Mighty taper)*
Crank : RD4 (MIGHTY COMP)
(160, 165, 167.5, 170, 172.5, 175)
Chainring : 130J TRACK
(1/2"x1/8" 43, 44, 45, 46, 47, 48, 49, 50)
B.B. : CBBAL-103/CBBF-103 (sold separately)
Chain Line: 45mm

*SG Mighty taper is not compatible with SG75 taper.