Crankset 38t black 170mm 38 teeth, 1-speed, square taper, 170mm crank arm length 1/2" x 3/32", chainring and crank arm made of steel The Amar Onyx impresses with a clear focus on stability and suitability for everyday use. With 38 teeth, it is optimally matched to hub gears and offers reliable power transmission. The 170mm long crank arm and the chainring are made entirely of robust steel - ideal for daily use in all weathers. The square taper bottom bracket interface allows for simple and proven installation. Number of chainrings 1 Crank arm length 170.00 mm Main color black Large chainring 38 inch System compatibility hub gear Bottom bracket square taper Type/kind of item Crankset variation