Review on ROCK BROS Foldable Resistance Exercise by Mark Erandio

After fitting the rollers to my bike and inflating the tires to maximum pressure, everything worked beautifully. The roller nuts were overtightened from the factory and I had to loosen them. Don't expect to be able to get on the bike properly and start riding without falling off. It takes practice and balance to ride without holding on to a wall or chair. I sometimes bike on a treadmill so I was able to stand on this roller with no problems. In terms of performance, this is not an attack bike. You'll have to spin like a Tasmanian devil to really work up a sweat. I'm sure I can make some changes to get more resistance, e.g. B. deflating the tires and possibly tightening the nuts on the rollers (I do not recommend this). ******** Be sure to measure the wheelbase. on your bike. I ride a 20" BMX, a 26" dirt jumper and a 29er. My bikes are SM and I use the farthest hole. A large bike will not work with this reel. I will use this video when the weather outside is less than ideal. Turn up the volume on your TV or headphones, it's not quiet there. It doesn't squeak like other reviewers have described. I recommend road tires if you mountain bike. You are strong enough. I will update my review after a few months of use.