OK, after reading the post about the guy who kept crashing into his chainguide and rotating it, i thought about the possibility of making a floating lower roller. Basically it would be kept in place by chain tension pushing it down, but when a rock hits it hard enough it would rotate up and out of harm's way. The biggest issue I can think of would be keeping it stiff enough to do its job while allowing for motion, and it if it a dual ring system preventing it from rotating when it's not supposed to. Anyway, it's just an idea...
protected roller
- Thread starter crono35
- Start date
Also known as the AC chain device...
I had one of these on my Giant Team DH in 2000. It wasn't that cool, but seems like a good idea.
I had one of these on my Giant Team DH in 2000. It wasn't that cool, but seems like a good idea.
Okay how about a GOOD movable roller?
Haven't had a moment to fix my rig yet, will post later. Your idea sounds good. Part of my problem is that I've got an e-type front der, mounted directly on the boomerang, so any movement at all is a problem for me. That and the fact that the guide hits the lower link/chainstay when it gets smacked, which has left me with a bent guide and a roller that binds.
But I don't want to discourage you, sounds like a good idea for folks without e-type front ders (or any front ders at all, for that matter).
But I don't want to discourage you, sounds like a good idea for folks without e-type front ders (or any front ders at all, for that matter).
