trialsbiker12345 Posted October 16, 2014 Report Share Posted October 16, 2014 I've recently bought myself a 26" GU typhoon after taking a long break from trials. I've been tinkering around upgrading parts to get it fit for riding. But there's one problem I can't get past, and that's setting up the rear HS33. The 4 bolt clamps just won't adjust enough to allow the caliper and pad to come down far enough into the rim. So I decided the slots in the magura clamps and the crappy rubber caliper clamp washer/thingy were shite and holding it off. I shopped around and everyone rated the TNN clamps, providing 8mm of adjustment as oppose to the 5mm with the Maggie clamps, and doing away with the washer by clamping the caliper square (providing the mounts were squared). But to my frustration the pad is still only just about on the rim and partially touching the tyre?! Anyone know of a fix, as I'm sure this cannot be like this for all typhoons as there would complaints galore! Cheers in advance Quote Link to comment Share on other sites More sharing options...
isitafox Posted October 17, 2014 Report Share Posted October 17, 2014 What gear ratio is it running and is it fitted with a new chain? Quote Link to comment Share on other sites More sharing options...
trialsbiker12345 Posted October 17, 2014 Author Report Share Posted October 17, 2014 It's running 21F 17R and chain is old Quote Link to comment Share on other sites More sharing options...
isitafox Posted October 17, 2014 Report Share Posted October 17, 2014 That's your problem right there, you'd be better running 22-15 and going for a new chain! Quote Link to comment Share on other sites More sharing options...
trialsbiker12345 Posted October 17, 2014 Author Report Share Posted October 17, 2014 okay, but how does that affect where the brakes will sit on the rim? not in a rude way, just curious Quote Link to comment Share on other sites More sharing options...
MartMini Posted October 17, 2014 Report Share Posted October 17, 2014 rarther than try to move the pad to the rim, you sit the wheel in the frame better, so you move the wheel towards the brake alignment area Quote Link to comment Share on other sites More sharing options...
trialsbiker12345 Posted October 17, 2014 Author Report Share Posted October 17, 2014 Ahhh I see! Will this still work even though the frame dropouts are vertical? Quote Link to comment Share on other sites More sharing options...
Jamie_Trials Posted October 17, 2014 Report Share Posted October 17, 2014 Ahhh I see! Will this still work even though the frame dropouts are vertical? Nope, will be related to your frame/rim setup. The tnn mounts should make the adjustment you need if it's only slightly touching. You could even try putting washers on the allen bolts so you aren't stuck with the adjustment within the groove on the maggy mounts. Quote Link to comment Share on other sites More sharing options...
isitafox Posted October 17, 2014 Report Share Posted October 17, 2014 Whoa I completely forgot they were vertical, is your rim straight or has it got loads of flat spots? Can you post some pics of the bike, rear wheel and how the brake currently looks set as close as possible? Quote Link to comment Share on other sites More sharing options...
trialsbiker12345 Posted October 17, 2014 Author Report Share Posted October 17, 2014 Nope, will be related to your frame/rim setup. The tnn mounts should make the adjustment you need if it's only slightly touching. You could even try putting washers on the allen bolts so you aren't stuck with the adjustment within the groove on the maggy mount so am i right in saying a washer under the allen key bolt head so that i can adjust it to the shank of the bolt without the head of the bolt holding it off? Quote Link to comment Share on other sites More sharing options...
trialsbiker12345 Posted October 17, 2014 Author Report Share Posted October 17, 2014 Whoa I completely forgot they were vertical, is your rim straight or has it got loads of flat spots? Can you post some pics of the bike, rear wheel and how the brake currently looks set as close as possible? How do I upload them? *hangs head in shame* Quote Link to comment Share on other sites More sharing options...
trialsbiker12345 Posted October 17, 2014 Author Report Share Posted October 17, 2014 Whoa I completely forgot they were vertical, is your rim straight or has it got loads of flat spots? Can you post some pics of the bike, rear wheel and how the brake currently looks set as close as possible? Was being an idiot! Hers some photos, if you'd like more just let me know. Quote Link to comment Share on other sites More sharing options...
isitafox Posted October 18, 2014 Report Share Posted October 18, 2014 I see your point, the only thing I can suggest would be to file the dropout slightly to allow the wheel to sit slightly forwards in the frame. It's a really strange situation which I could only put fown to the wheel being egged or something but you'd be able to tell that pretty easily! What rim is it out of curiosity?? Quote Link to comment Share on other sites More sharing options...
trialsbiker12345 Posted October 18, 2014 Author Report Share Posted October 18, 2014 I have no idea what the rim is I'm afraid I'll have a look in a bit see if I can find any branding. I don't think its egged, like you said that's a pretty easy spot. However, I do have tyre rub on the frame in one small area on one side of the wheel though. But I've put that down to tyre bulge as the sidewalls are as thin as paper. Will have a play around a bit more, if not I'll just see if there's another cheap rear selling on here, just to try it out and see what happens Quote Link to comment Share on other sites More sharing options...
Rossy Posted January 1, 2015 Report Share Posted January 1, 2015 A get an 18t freewheel for front and a 15 cog for back! Quote Link to comment Share on other sites More sharing options...
Aldred_85 Posted January 1, 2015 Report Share Posted January 1, 2015 Thats a very strange situation. Fixed wheel position, almost looks like the frames been badly made. Not really a good fix, but how about getting v-brake adaptors and using evo mounts. I know thats very arse about face but may give the extra adjustment required. Quote Link to comment Share on other sites More sharing options...
CC12345678910 Posted January 13, 2015 Report Share Posted January 13, 2015 (edited) You've deffo got the axle slammed in the dropouts? Off the wall idea but is the rim dished to one side? That would drag the rim downwards towards the dropouts. Beyond that file the dropout about a mm towards the BB. I'd personally go rear V brake with heatsink adapters as you'd have al the adjustment you'd need, but that may have to do with me having it all already Edited January 13, 2015 by CC12345678910 Quote Link to comment Share on other sites More sharing options...
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