suburbanreuben
Old School Grand Master
My advice above is completely wrong!
suburbanreuben":19k8p4wa said:The holes in the fork face backwards and the holes in the caliper are side to side? Then yes, you can easily get an adapter to run your 160mm disc.
if the fork holes are side to side and the caliper's are front facing, you can get an adapter but will have to go up to a 180mm rotor.
Edit: I've just realised this is arse about face. Ignore me...
suburbanreuben":19k8p4wa said:My advice above is completely wrong!
wookiee":3rbncrjx said:Its bloody confusion for a "new to discs" guy! I got the back one on but it was rubbing and was well over to one side...I've found a couple of thin washers and put them between the caliper and the drop out and they are now running fine! Is that a fair bodge or should I be needing spacers to bring the rotor away from the wheel a bit? Also as my last rear caliper (PM and had an adapter to fit the dropout) had lateral adjustment the old loosen squeeze brake lever and tighten bolts...the IS doesn't seem to give me that adjustment or are there rounded washers similar to those on v brake blocks?
Apologies again for my ignorance but if you don't ask...
..Cheers Wook...
Yep, wrong way round as per description: Genuine Shimano Post mount adaptor, designed for front forks with IS mount to Post Mountwookiee":28u64237 said:So to get this straight...is this one the wrong way round?
http://www.chainreactioncycles.com/Mode ... elID=54880
Yep, you will need the 'Front Post to IS 160mm'wookiee":28u64237 said:
1210tech":2arsd0kg said:Yep, wrong way round as per description: Genuine Shimano Post mount adaptor, designed for front forks with IS mount to Post Mountwookiee":2arsd0kg said:So to get this straight...is this one the wrong way round?
http://www.chainreactioncycles.com/Mode ... elID=54880
Yep, you will need the 'Front Post to IS 160mm'wookiee":2arsd0kg said:
02gf74":37mgocmy said:as you have figured out, IS callipers are centred about the disc using shims - you can make you own from coke tins they are 0.1 mm thick - I used them all the time or you can buy them 0.1. 0.2. 0.5 thicknesses etc.
the post mount have a slot in the calliper so are adjusted by moving the calliper then tightening the bolts - some come with conical washers that you fit between the callliper and mount/fork another set between calliper and bolt that can angle the calliper - if the form post mounts are true, it shouldn't be necessary for them; in fact formula r1 callipers fit without the conicals between fork and calliper whereas avid elixir have them.
by the way = the XTR calliper you shown you sure that is correct with the split pin? pretty sure they should have a bolt in there.