ROCKBROS Bike Rollers Foldable Indoor Home Trainer Cycling Bicycle Roller Trainer Adjustable Bike Trainer for MTB Road…

☆DURABLE & FOLDABLE: High-strength and high-end aluminium alloy roller bicycle trainer, with three aluminium rollers mounted into an adjustable frame to hold bike wheels. This bike roller trainer frame could be folded and also be lightweight for simple carrying and storage.
☆SAFE: Parabolic rollers strengthen stability and are safer than straight rollers, choosing a safer indoor bike training rollers.
☆SMOOTH& QUITE: Matrix bridge structure makes the force even, which can reduce the have an effect on all through riding; Nylon glass fiber and resistant PP roller lower ordinary noise between 60-75 dB. (The sound of Mountain bike will be louder than road bike on account of different tires)
☆COMPATIBILITY: This roller tranier is suitable for all bikes between 16 “-29” inches (mountain bike, road bike, folding bike, and so on.)The front adjustment holes with measuring cylinder can adapt different bicycles wheels.
☆LIGHT WEIGHT & PORTABLE: The weight of the bike roller is only 6.5kg/pair; The unfold dimension is 50.98*19.69 inch, and the folding dimension is 20.47*4.45 inch, bike trainer is very handy and save space. For the rookies, we suggest to put the roller near the wall, or middle of the door, or somebody can offer protection to you, no sharp object near you, to steer clear of damage when you fall.