No ISCG mounts, so which chain guide should I use?
Currently have a Middleburn RS8 triple with an XTR front mech. 34.9mm.Posted 4 years ago
I would like to use a single ring, so just going to use the middle ring and some shorter chainring bolts. Chainring doesn’t have much in the way of shifting ramps so should be fine, I’ve used the same kind on my SS and it was fine, although it has a single-specific ring now.
Anyway, back to the question. The bike concerned is a 2008 Kona Stinky which has no ISCG mounts. Which chain device would the collective recommend? Going to have to be either seat tube or BB mounted, maybe both, I would like top and bottom retention gadgets. It will be a 32t ring, may go to 34 when it wears out and I get a single-specific one.
thing is, iscg tabs were invented for a reason: relying on the ‘tightness’ of the BB cup to hold the chainguide in the right place is likely to end in disappointment…
although you may be lucky.
if you’re not lucky, you may find that a DMR seat-tube clamp comes in handy
you may be able to find/drill a hole in your guide so you can ‘tie’ it to the clampPosted 4 years agoNorthwindSubscriber
Just how hard do you ride it? You might be happy with no chain device, and just a thick/thin chainring- retention is certainly better than any top-only device.
I use a BB mount double guide on another bike and my useful hint is, dirt. Bit of crunchy dirt between the shell and the chainguide, and a bit more between the chainguide and the BB, holds things in place much better. You could use carbon paste or something, no doubt, but my bikes always have plenty of dirt available (the only danger is that I occasionally left a clean spot)Posted 4 years agogonzyMember
yes that thing….it would slide around on the seat tube no matter how tight the bolt was…ruined the paintwork.Posted 4 years ago
also the guide relied on that one bolt to keep it secure and would also move about. it different rubber spacer to get the space between the plates right but they were rubbish as you needed to tighten them up to stop the the whole thing coming loose and and doing so this would compress the rubber spacers thus defeating the object…
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