Sunrace crankset FCM500 The crankset is equipped with high and low teeth that ensure better guidance when shifting up. The chain is prevented from shooting over because the alternating height is divided over a number of sprockets. Specifications: Type of bicycle: city bike Color: black/silver Material cranks: aluminum Material chainring: steel Number of chainrings: 3 Gear ratio: 24-34-42 Crank length: 170 mm Crank depth: -2 mm Axle type: square connection (JIS) Weight: 974 grams Axle size pedals: 9/16" Suitable for a bottom bracket with a length of 170 mm Contents: Crankset Left crank