Rider style also plays a part here; aggressive riders or those who push big gears can put more stress through the drive chain. The rise in popularity in cycling in recent years also there are many news riders who have come to the sport from a more sedentary background and are currently heavier than they intend to be!

The wheel need to be able to support the stresses put on it by the weight of the bike and the rider and perform in a constant and reliable manner.