kefeimumu Mountain Bike Crankset Square Hole 42T/48T Aluminum Chainring Set with Crank Arm & Chain Guard, Compatible for MTB, Road Bike, and Commuter Bicycles (42T)

High-strength aluminum alloy material - lightweight aluminum alloy chainrings and sprockets, sturdy and durable, providing efficient power transmission, suitable for mountain bikes, road bikes and commuter rides. The number of teeth is optional (42T/48T) - meeting different riding needs. The 42T is suitable for climbing slopes and off-roading, while the 48T is suitable for high-speed flat road riding, adapting to various road conditions. Square hole central shaft compatible design - Standard square hole interface, widely compatible with most mountain bikes and city bikes, easy to install, and worry-free replacement and upgrade. Chain guard plate design - equipped with chain guard plates to prevent the chain from falling off, enhance riding stability and reduce maintenance troubles. Crank length optimization - Ergonomic crank design provides a comfortable pedaling experience. Paired with anti-slip pedals, it is more effortless and efficient.