دريفت مانياك دراجة كرانك سيت 42T 130BCD 170 مم مجموعة ذراع كرانش مربع مفتق لمدينة دراجة قابلة للطي

MATERIAL This crankset is made of forged aluminum alloy 6061-T6 and 3mm alloy chainring, which is of high strength and durable, weight is approx 870g/1.92lb.
SIZE BCD: 130mm, Crank Arm length: 170mm, Chainring（3/32" 42T)，compatible with 9/16" pedals, chain size 1/2"*1/8", chain line 45mm, B.B.Axle recommended 118mm. External width between chain guard is 16mm (0.6in), total diameter of chain guard is 186mm (7.3in).
COMPATIBILITY Our bike crankset is easy installation, a good replacement for bike repair, compatible with city folding bike. Please check frame chain stay clearance before purchase.
NEW DESIGN Our crankset has high strength, can be used for a long time. Light weight design, adding no heaviness to you bike, make riding more comfortable and relaxing. Double alloy chainring cover, avoid chain rubbing riders pants, prefect for daily commuting.
PACKAGE INCLUDE Complete set including left crankarm, right crankarm and chainring（42T, replaceable） and double Chainguard (alloy). Please measure the size to confirm it fit your bike before you order.