mista-neos Posted April 4, 2011 Report Share Posted April 4, 2011 Hi all at the moment I'm having some trouble with the hold with the rear brake. The brake has good bite but as soon as being on the edge of walls or whatever it just slips. I never had a problem untill I got a new rim I got tarty bikes to give it a medium grind. one of the problems is what ever pads I use just get shredded (the wall of my tyres coverd in pad ) I have used heatsink yellows in plastic backings, RockBlues in CNC and currently Heatsink yellows in CNC's. my set up is GU booster, HS33, V!Z superlite wheel, Water bleed medium grind. On my old ground rim light grind on monty 221 rim I had no problems, So I'm putting the blame on the new grind. Has anyone else had this problem? can anyone help me out. Its causing me alot of stress and I'm not enjoying riding anymore. Thanks Blake Quote Link to comment Share on other sites More sharing options...
Aidan97 Posted April 4, 2011 Report Share Posted April 4, 2011 Trying setting up the brake again I cant see it being the grind Quote Link to comment Share on other sites More sharing options...
mista-neos Posted April 4, 2011 Author Report Share Posted April 4, 2011 I forgot to say I have set it up so many times and its still the same Quote Link to comment Share on other sites More sharing options...
Aidan97 Posted April 4, 2011 Report Share Posted April 4, 2011 I forgot to say I have set it up so many times and its still the same try bleeding it with magura royal blood I wouldn't ever think of bleeding a brake with water. Quote Link to comment Share on other sites More sharing options...
theom Posted April 4, 2011 Report Share Posted April 4, 2011 Could be your setup is super super stiff with the booster and cnc backings, try it without the booster? Quote Link to comment Share on other sites More sharing options...
mista-neos Posted April 4, 2011 Author Report Share Posted April 4, 2011 Okay I'll give it a re-bleed with some Royal Blood and I'll give it a try with out the booster, I have never had problems with the booster though :/ I'll give it a shot no harm Quote Link to comment Share on other sites More sharing options...
Little Yoshi Posted April 4, 2011 Report Share Posted April 4, 2011 Are you dragging your brakes? Quote Link to comment Share on other sites More sharing options...
forteh Posted April 4, 2011 Report Share Posted April 4, 2011 (edited) Ive found with my old heatsink reds, they just wouldnt hold if I had a 4bolt booster on as it was too stiff, put a 2bolt on and it would bite and hold just fine - added bonus of saving a load of weight, downside is its noisier Ive not tried my heatsink yellows with a 4bolt, they work perfectly with the 2bolt so never bothered to change Edited April 4, 2011 by forteh Quote Link to comment Share on other sites More sharing options...
Azarathal Posted April 4, 2011 Report Share Posted April 4, 2011 Okay I'll give it a re-bleed with some Royal Blood and I'll give it a try with out the booster, I have never had problems with the booster though :/ I'll give it a shot no harm Don' rebleed it. Aidens just being a wet. Quote Link to comment Share on other sites More sharing options...
mista-neos Posted April 5, 2011 Author Report Share Posted April 5, 2011 No I'm not dragging it and its not rubbing and the booster is a home made 2 bolt Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted April 5, 2011 Report Share Posted April 5, 2011 Giving it enough time to bed in? Give it a fresh bleed, make sure there's NO air in it at all. Set it up so the pads are dead square, and then let it bed in! It wont be amazing at first, but keep dragging the brake, chuck water on it, drag it, repeat. They'll get better! If you keep re-adjusting it, the pads wont be able to wear into the set up, so you'll be going in circles. Quote Link to comment Share on other sites More sharing options...
BradJohnson Posted April 5, 2011 Report Share Posted April 5, 2011 look on tarty bikes and find some pads which are up for a medium grind, to me it sounds like your using soft pads for smooth rims, you want some tnn bealey pads Quote Link to comment Share on other sites More sharing options...
SamKidney Posted April 5, 2011 Report Share Posted April 5, 2011 Pads for a Medium Grind - Tnn LGM ( I found these to be a little incosistant in performance ) - Tnn Beleay ( Only used these on a mates bike for a few hours. Seem to be brilliant though ) - Rockman CNC Blues ( Brilliant Pads ) - Heatsink CNC Yellows ( My favourite ) - Heasink CNC Coustsinks (Yet to try ) - Phat Pads in CNC backings If your going to be running a light grind, - Heatsink CNC Yellows - Try-All Croco Yellows (These are the only pads Ive really used on a light grind) The Heatsink CNC Yellows are truely brilliant though. Work on a medium grind, and will continue to do so as the grind wears out. Mine are on a dead grind atm and bite and hold remains truely amazing. Quote Link to comment Share on other sites More sharing options...
Aidan97 Posted April 5, 2011 Report Share Posted April 5, 2011 Don' rebleed it. Aidens just being a wet. Thats just being stupid its common sense to use proper fluid in brakes its just a cheap around it, spend a few quid on proper fluid and it'll work better Quote Link to comment Share on other sites More sharing options...
SamKidney Posted April 5, 2011 Report Share Posted April 5, 2011 Ive been running pure water in my brakes for nearly 2 years with no problems. Just regular servicing will avoid any problems. Only takes about 10-20 mins to service a Magura. Quote Link to comment Share on other sites More sharing options...
Aidan97 Posted April 5, 2011 Report Share Posted April 5, 2011 Ive been running pure water in my brakes for nearly 2 years with no problems. Just regular servicing will avoid any problems. Only takes about 10-20 mins to service a Magura. I know but ive heard quite a few of problems with water bleeding and in theory because oil is thicker than water then it should help with brake power because it would be able to push the pads in better. Quote Link to comment Share on other sites More sharing options...
Martin Reynolds Posted April 5, 2011 Report Share Posted April 5, 2011 Thats just being stupid its common sense to use proper fluid in brakes its just a cheap around it, spend a few quid on proper fluid and it'll work better Its not about being "cheap" many trials riders perfer water because it is less viscous, giving a lighter feel Quote Link to comment Share on other sites More sharing options...
BradJohnson Posted April 5, 2011 Report Share Posted April 5, 2011 Hi all at the moment I'm having some trouble with the hold with the rear brake. The brake has good bite but as soon as being on the edge of walls or whatever it just slips. I never had a problem untill I got a new rim I got tarty bikes to give it a medium grind. one of the problems is what ever pads I use just get shredded (the wall of my tyres coverd in pad ) I have used heatsink yellows in plastic backings, RockBlues in CNC and currently Heatsink yellows in CNC's. my set up is GU booster, HS33, V!Z superlite wheel, Water bleed medium grind. On my old ground rim light grind on monty 221 rim I had no problems, So I'm putting the blame on the new grind. Has anyone else had this problem? can anyone help me out. Its causing me alot of stress and I'm not enjoying riding anymore. Thanks Blake You could also sand your rim a little to make the grind less harsh and it shouldn't destroy your pads. Quote Link to comment Share on other sites More sharing options...
casualjoe Posted April 5, 2011 Report Share Posted April 5, 2011 I know but ive heard quite a few of problems with water bleeding and in Aidan97's theory, because oil is thicker than water then it should help with brake power because it would be able to push the pads in better. Quote Link to comment Share on other sites More sharing options...
craigjames Posted April 5, 2011 Report Share Posted April 5, 2011 I know but ive heard quite a few of problems with water bleeding and in theory because oil is thicker than water then it should help with brake power because it would be able to push the pads in better. Purely on that statement no one should ever take advice from you. 4 Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted April 5, 2011 Report Share Posted April 5, 2011 Purely on that statement no one should ever take advice from you. Quote Link to comment Share on other sites More sharing options...
Aidan97 Posted April 5, 2011 Report Share Posted April 5, 2011 Purely on that statement no one should ever take advice from you. well think about its quite a sensible point Quote Link to comment Share on other sites More sharing options...
monkeyseemonkeydo Posted April 5, 2011 Report Share Posted April 5, 2011 well think about its quite a sensible point In what way? Oil is thicker than water so it'll be more powerful? Quote Link to comment Share on other sites More sharing options...
SamKidney Posted April 5, 2011 Report Share Posted April 5, 2011 I know but ive heard quite a few of problems with water bleeding and in theory because oil is thicker than water then it should help with brake power because it would be able to push the pads in better. My brakes hold just as well as when it was bled with oil. They bite quicker, as the brake is quicker due to the lower viscocity of water, and the return is quicker. As well as the brake being lighter. I suffer from terrible arm pump when using oil in my brakes, and water bleed with either a deng or 4 finger lever is the only way I get round this. 1 Quote Link to comment Share on other sites More sharing options...
Aidan97 Posted April 5, 2011 Report Share Posted April 5, 2011 My brakes hold just as well as when it was bled with oil. They bite quicker, as the brake is quicker due to the lower viscocity of water, and the return is quicker. As well as the brake being lighter. I suffer from terrible arm pump when using oil in my brakes, and water bleed with either a deng or 4 finger lever is the only way I get round this. I haven't used water bleed brakes but I cant imagine being better as oil when you think about it it should be better if the oil is thicker shouldnt it? Quote Link to comment Share on other sites More sharing options...
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