Bike Uses Ball Bearings, Not Gears, To Shift

Curious, how heavy is it?

NuVinci N360 hub weighs 5.4 lbs

Fyi, the bike we tested with this hub weighed 31 pounds total.

thanks for the info. be interesting to see how this develops.

thanks for the info. be interesting to see how this develops.

A ball bearing is a type of rolling element bearing that uses balls to maintain the separation between the bearing races.the purpose of ball bearing is to reduce rotational friction and support radial and axial loads. ball bearing used in cycle it is very useful for racing for that ball bearing is used in cycle.

I have owned this bike for about three months now and have had a lot of problems with it.

The first problem was that the rear fender rattles an insane amount. Seriously, for a $950 bike, you’d assume this kind of thing wouldn’t be a problem. But no, it was bad. Every crack in the pavement would trigger a couple seconds of rattling. It sounded like I was blasting Morse code over a loud speaker. People would turn and look at me when I rode by, as if to see what kind of junker would make such awful rattling.

The shop that sold me the bike couldn’t figure out exactly what was causing it, but eventually I did. The clasp that holds the fender, directly below the seat, is not a solid connection. After several attempted fixes, I finally got it to stop by slipping in a two sided velcro strip between the clasp and fender and then wrapping it around itself on both sides of the mount.

The other problems I am now having are much more serious and have made the bike almost unusable. It started when I was riding up hill and putting load on the pedal. There was a sudden slippage, which almost wiped me out. Luckily I was on a bike trail and not in the road, or I might have veered into traffic. After regaining my balance, my first thought was that the chain must have snapped, but it hadn’t. It wasn’t dislodged or anything either. The bike seemed to work fine. Skip ahead about a week and it happens again. About this time, I also noticed that it was harder to pedal on the right side than on the left side. I chalked it up to being tired, but it got worse and worse every ride. I had a friend try it out just to be sure and he immediately noticed it too. So, I brought it into the shop and they got in contact with the vendor. They opened up the hub and cleaned it out. When I got it back, I seemed more balanced, but I was unable to shift into a high ‘gear’. Now, on level ground, there is almost zero resistance. I might as well have bought $100 special at Walmart. This bike has been nothing but a huge waste of time and money. I’m currently waiting for a replacement hub, but at this point, I’d just as soon have my money back.

If anyone has any insight into the cause of these issues, please let me know. The shop mechanics don’t seem to have a clue and there is very little information about any problems online.