Downhill frames are also overbuilt to handle the stress of riding over rocky terrain, drops, and jumps.
Some newer downhill bikes can be built to weigh under 30 lb (13.6 kg), but it is rare, because nowadays riders tend to care more about quality and performance rather then sheer weight.
Adjustable head tube angles are also available to adapt the bike to the owner's preferred style of riding.
[5] Brake discs and calipers may come with finned heatsinks for better heat dissipation.
Downhill bikes are typically made of steel, aluminum or carbon fiber.