MTB Bike Triple Crankset 24T-34T-42T 28T-38T-48T Chainring Crank Arm Set 170mm

Structure: three-speed adjustable (24T - 34T - 42T or 28T - 38T - 48T Optional). High strength steel tooth plate, aluminum alloy crank and plastic high strength chain guard cover, Strong and durable, not easy to deform.