Posts Tagged ‘single speed’

I’ve been using my Forte Single Speed Conversion Kit (www.performancebike.com) for about 9 months now. It is still in reasonably good shape and functions. I can’t say that I’m extremely satisfied with it though. Here are my reasons:

1. The tolerance between the bolt and and the tensioner arm is loose and doesn’t get better with use. Therefore the pulley sits on the chain at an odd angle.
2. There is a cage around the pulley to keep the chain from coming off of the pulley. The axle bolt for the pulley comes loose frequently and alloys the cage to rotate and hit the chain. You have to stop and tighten the axle bolt. Sucks!
3. I thought that since I was going single speed in the back there’s no use for a front derailleur so I removed mine — mistake. Without the front derailleur, curb hops and off-roading sometimes sends my chain to the bottom bracket or my pedal spindle.
4. If your hub body is anything other than steel, the kit is not a good idea. You only put one cog on the back and the cog’s interface with the hub body is very small. Thus, with my aluminum hub body, the cog ate half-way through the hub-body splines — not good if your attached to your hub (mine is 12 years old with roughly 10,000 miles on it). I had to put on an old cassette to spread the load.
5. The spring tension isn’t great or adjustable. So, if your chain happens to be a bit on the long side and taking one more link out makes it too short, your chain may just skip over your cog.

It’s great to be free of a derailleur and all of its problems but the conversion kit needs some design iterations.

Overall Rating: 2 Broken Down Cars