High-Strength Crank Set with Deformation Resistance - Durable Bicycle Chain Arm for Mainstream Bikes | Perfect for Road Cycling, Mountain Biking & Commuting

Features: Made of premium aluminium alloy, hollow design, which is lightweight, adding no heaviness to bike. High strength and deformation resistance, durable for long time use. Standard precision machining, which ensures ultimate chain retention, increases service life, and reduces friction and noise. 104mm BCD without any overlap of crank arm and chain ring bolt. A good replacement for bike repair, compatible with many bikes. Specification:Material: Aluminium AlloyColor: BlackBCD: 104 mmArm Length (The Hole Spacing): 170 mm/ 6.7 inchFitment: for 8/9/10 speed Weight: Approx. 860 gPackage List: 1 * Pair of Crank Arm