Twitch-119 Posted January 5, 2008 Report Share Posted January 5, 2008 Don't mean to sound 'stupid'. But whats grinding, just recently heard of it, thinking it could be scracthing surface of rim, but not sure?-What is the best inflation level for a rear Onza sticky finger tyre?-Magura HS33 brakes -- One side of the brake is not 'working' to what it looks like it should do, i did get it working nicely but its just went back to what it was before, is this normal behavior for a new HS33 (it was fitted on by 'professionals') or just bad luck thanks josh Quote Link to comment Share on other sites More sharing options...
Ladd Posted January 5, 2008 Report Share Posted January 5, 2008 Grind is were you run a angle grinder around the rim to ruffen it up and put a sharp surface so the pads work well and grip the grind and you might have a lazy pistons spray some lube on it. Quote Link to comment Share on other sites More sharing options...
Twitch-119 Posted January 5, 2008 Author Report Share Posted January 5, 2008 Grind is were you run a angle grinder around the rim to ruffen it up and put a sharp surface so the pads work well and grip the grind and you might have a lazy pistons spray some lube on it.Thanks for help on the grinding, but my dad is an engineer by trade and says that hydralic pistons lube themselves, and he couldnt think of anything else wrong Quote Link to comment Share on other sites More sharing options...
Grant Hundley Posted January 5, 2008 Report Share Posted January 5, 2008 Thanks for help on the grinding, but my dad is an engineer by trade and says that hydralic pistons lube themselves, and he couldnt think of anything else wrongits got dirt on it most likely which stops it from moving as freely Quote Link to comment Share on other sites More sharing options...
Twitch-119 Posted January 5, 2008 Author Report Share Posted January 5, 2008 (edited) Thanks, my dad said that could be it, we got some Muc-off would that work? Edited January 5, 2008 by T-Proboy13 Quote Link to comment Share on other sites More sharing options...
Ash-Trials Posted January 5, 2008 Report Share Posted January 5, 2008 Yeah that muc off stuff worked to clean my mates, give it a try. Quote Link to comment Share on other sites More sharing options...
Twitch-119 Posted January 5, 2008 Author Report Share Posted January 5, 2008 (edited) Yeah that muc off stuff worked to clean my mates, give it a try.sweet thanks for the help, everyone. joshP.S. Anyone else live in Bucks, or know any good places for a beginner to ride Edited January 5, 2008 by T-Proboy13 Quote Link to comment Share on other sites More sharing options...
Ladd Posted January 5, 2008 Report Share Posted January 5, 2008 Im in st ives cambridgeshire mate you know that ? Quote Link to comment Share on other sites More sharing options...
Ben John-Hynes Posted January 5, 2008 Report Share Posted January 5, 2008 What is the best inflation level for a rear Onza sticky finger tyre?Best psi would be to not have that tyrenah,i run around 20psibut it depends on how you like it!Benx Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted January 7, 2008 Report Share Posted January 7, 2008 * Grinding = roughening the surface with an angle grinder, allowing the pads better hold of the braking surface.* Sounds like a sticky piston. Look on the trials wiki or just hold the other piston while pumping the lever and occasionally spraying a light lube...eg wd40* Best way to get the ideal tyre pressure is to start at 30 psi...and gradually let the tyre down until you find a pressure you get on with Quote Link to comment Share on other sites More sharing options...
Krisboats Posted January 7, 2008 Report Share Posted January 7, 2008 Thanks for help on the grinding, but my dad is an engineer by trade and says that hydralic pistons lube themselves, and he couldnt think of anything else wrongTell your dad all the cool people put water in their hs33's... then they don't lube themselves I'm not even joking either Yeah, everyones covered everything really, just a note on the last point. If you do spray wd40 or light oil on your piston to get it going normally make sure not to get any on the pad and the rub the excess off with a cloth, in fact... just take the pad off entirely and then put it back on when the oils been wiped off.Alternatively it could be that your clamp bolts are too tight or the brake isn't set up correctly. Try undoing the bolts, winding off the TPA on the brake lever itself and then set the pads up properly about 1-2mm away from the rim and nice and straight. then do the bolts back up keeping the pad in the same place. You should find that at least one of the suggestions works for you. Quote Link to comment Share on other sites More sharing options...
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