Dual disc brake variable speed mountain bike bicycle
Basic structure
frame: The core skeleton of a bicycle, connecting all components, usually made of steel, aluminum alloy, carbon fiber and other materials.
Transmission system: including pedals, crank, chain, flywheel and rear wheels, which transmits power to the wheels by pedaling.
Brake system: divided into V brakes, disc brakes, drum brakes, etc., used to control the speed and parking.
Wheel set: composed of wheel rims, spokes and flower drums, which affect the stability and speed of riding.
Steering system: including handlebars, front forks and front wheels, which controls the direction of riding.
Other components: such as seats, pedals, lights, fenders, etc., to improve comfort and functionality.
Road Bike:
Features: Lightweight frame, narrow tires, bend handle design, suitable for high-speed riding.
Uses: racing, long-distance riding, fitness.
Mountain Bike:
Features: Coarse tires, shock-absorbing front forks, straight handle design, suitable for complex terrain.
Uses: Off-road, forest road riding, daily commuting.
City Car/Commuter Bike:
Features: Comfortable seats, carrier racks, rust-proof design, suitable for short trips in the city.
Uses: commuting, shopping, picking up and dropping off children.
Folding Car:
Features: Foldable design, easy to carry and store.
Uses: Subway connection, travel, small space storage.