yes it does a bit but not much on mountain bikes. they key is to have enough speed. i crashed yesterday prety bad. i made the first jump but didnt have enough speed for the next one.(two doubles.) hit the lip with my front tire. nuthin wrong with my bike at all checked it 3 times over because i hit really hard, but my Aline isnt exactly made for DJing. i think i should save up for a DJ bike