Chainguards for 1x7s to stop the chain coming off??...

[Scrat]

surely its as simple as sorting your chainline?

Play around with BB lengths, if its only going outside is your BB axle to short?

 

[ermsamermsam]

Well, the point of using a 1x7 is that there will always be more challenging chain lines, isn't it?
I mostly use the rear cog that is in the straightest position and one either side of it, but still have the problem.
I think the first step will be to get a unramped chain ring and then have a think what to do if the problem continues..
Good logical thinking about the axle lenght though..

 

[Andy R]

Here's where you can get bash guards in all sizes - and very good prices and fast delvery too clicky

 

[carlos-g]

I've got a truvativ adjustable chain device I bought for my GT I-drive but it doesn't fit.
it's bottom bracket mounted and the retention wheels can be positioned from 32 to 44 teeth , the arms can also be moved around the chainring to increase chain security.
The device is for a dual ring set up and the wheels float on pins but would be easy to position for a single ring.
I'll put a piccy up tomorrow if your interested , when I bought it of ebay I paid just short of £16 + post .If you think you could make use of it how about £15 posted?

 

[FST4RD]

I had a Truvativ Box Guide, easy to install and dead quite to, didn't even notice it riding. I have used many different guides but the Box guide is deff the best I reckon.