First Bicycle Components Co., Ltd.

External BB Axle Integrated Triple-Chainring Crankset for BB30

◎ Crank construction: AL-7050 T73
◎ Bolt circle diameter: 130mm
◎ Chainring: 52T x 39T x 30T; 50T x 39T x 30T, AL-7075 T73
◎ Crank arm length: 165mm, 170mm, 172. 5mm, 175mm
◎ Crank arm: forged AL-7050 T73
◎ Average weight: 940g±10g/175mm BB not included
◎ BB shell width: 68/70
◎ Chainline: 45mm
◎ Speed: 9/10
◎ Q-factor: 128±1. 5mm; Spindle: Alloy hollow
◎ Finish-Crank: high polished silver, black, and grey
◎ Finish-Chainring: beadblast silver, black, and grey
◎ Fits BB30 system
◎ Regular O24 axle version (ET) & matte black finish version (ETm30/ETm) are available

主要產品:
Bike parts,Bike Chainwheels,Bike cranks,Bicycle Lamps

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