E-Bike crank arm mount: 65 % polyamide, 35 % polyester Material: Steel chainrings Additional Information: - Recommended bottom bracket length: 110 mm - Case width: 68/70 mm - Compatible chain: HG 6/7/8 -speed Intended use: Road Chainrings Chainring Number: 2 chainrings Gearing: 50/34 teeth Cranks Compatability circuit: 8-speed Hole circle type: Standard Axle Clamp: Square Tapered Crankarm Length: 170 approx. mm Chain line: 43.5 approx. mm BCD: Without bolt circle mm Build: 5-arm
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