SRM Spider PowerMeter with rechargeable system.

MATERIAL : SPINDLE: AL 2024
                   CHAINRING : AL7075-T651
                   CRANK : AL6066-T6 / Carbon fiber
CRANK LENGTH : AL6066-T6 : 145, 147.5, 150, 152.5, 155, 157.5, 160, 162.5, 165, 167.5, 170, 172.5, 175mm
                               Carbon fiber : 145, 150, 155, 160, 165, 167.5, 170, 172.5, 175mm
GEAR COMBINATION : 34/50T, 36/52T, 39/53T, 42/54T, 42/55T
COLOR : S.B Black