Frames tend to be aluminium or carbon fibre and use hydraulic disc brakes to prevent. The tyres are frequently broader than These on a normal road bike for extra comfort and traction. Brakes: Trustworthy halting electricity is crucial. You will discover both mechanical or hydraulic disc brakes. Hydraulic disc brakes https://marcofxgsd.theideasblog.com/39349616/what-does-kids-mountain-bike-mean