gravelrash 0 Posted September 13, 2011 Hi everyone, Ive got a 1200 bandit k5 and from new the brakes have been crap. Absolutely no bite from cold, front and rear the same. They are the standard 6 pot Tokico calipers on the front i've put Hel braided lines on (standard setup) and tried EBC hh sintered pads new fluid and bled properly all to no improvment. There is plenty of feel at the lever but just no stopping power from cold, once heated up the fronts work well but the back is useless. If the discs, and pads are deglazed and calipers cleaned its fine for about a week then goes back to the same. Thinking of changing discs but seems a bit drastic. Any ideas anyone Oh! a mate has the same model bike he's done nothing to it and his brakes are awesome Mike. Share this post Link to post Share on other sites
Davehutch-hutchs 0 Posted September 13, 2011 sounds to me it can only be your discs Share this post Link to post Share on other sites
dick65 0 Posted September 13, 2011 measure the disc thickness could be worn down maybe bleed the brakes again or try different pads. Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 Thing is Dave they are good when heated up its just getting them hot. I was thinking contaminated somehow but then why would they work hot but very poor cold? maybe try another change of pad first something different if not some wavey discs it is Share this post Link to post Share on other sites
Davehutch-hutchs 0 Posted September 13, 2011 @gravelrash wrote:Thing is Dave they are good when heated up its just getting them hot. I was thinking contaminated somehow but then why would they work hot but very poor cold? maybe try another change of pad first something different if not some wavey discs it is see what you mean Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @dick65 wrote:measure the disc thickness could be worn down maybe bleed the brakes again or try different pads.disc thickness is fine Dick well within tolerance so will probably go for another set of pads Share this post Link to post Share on other sites
lee1 1 Posted September 13, 2011 hi mike you have the same model bike as meand the first thing I noticed,was how crap the brakes are even though they have six pots on the frontpads and discs fine on mine to Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @lee wrote:hi mike you have the same model bike as meand the first thing I noticed,was how crap the brakes are even though they have six pots on the frontpads and discs fine on mine to Its a strange one Lee if i find a solution i'll let you know. Share this post Link to post Share on other sites
lee1 1 Posted September 13, 2011 @gravelrash wrote:@lee wrote:hi mike you have the same model bike as meand the first thing I noticed,was how crap the brakes are even though they have six pots on the frontpads and discs fine on mine to Its a strange one Lee if i find a solution i'll let you know. sure I read somewhere the 4pots are a much better caliper Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @lee wrote:@gravelrash wrote:@lee wrote:hi mike you have the same model bike as meand the first thing I noticed,was how crap the brakes are even though they have six pots on the frontpads and discs fine on mine to Its a strange one Lee if i find a solution i'll let you know. sure I read somewhere the 4pots are a much better caliper Haveugot1 (Mark) has a mk1 4 pot his brakes are great. Skelly has the same model as ours his are also great but he never cleans it and says thats my problem, so our bikes are too clean mate! Share this post Link to post Share on other sites
lee1 1 Posted September 13, 2011 @gravelrash wrote:@lee wrote:@gravelrash wrote:@lee wrote:hi mike you have the same model bike as meand the first thing I noticed,was how crap the brakes are even though they have six pots on the frontpads and discs fine on mine to Its a strange one Lee if i find a solution i'll let you know. sure I read somewhere the 4pots are a much better caliper Haveugot1 (Mark) has a mk1 4 pot his brakes are great. Skelly has the same model as ours his are also great but he never cleans it and says thats my problem, so our bikes are too clean mate! bet daves brakes dont work at all Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @lee wrote:@gravelrash wrote:@lee wrote:@gravelrash wrote:Its a strange one Lee if i find a solution i'll let you know. sure I read somewhere the 4pots are a much better caliper Haveugot1 (Mark) has a mk1 4 pot his brakes are great. Skelly has the same model as ours his are also great but he never cleans it and says thats my problem, so our bikes are too clean mate! bet daves brakes dont work at all Share this post Link to post Share on other sites
trebor4460 0 Posted September 13, 2011 Master cylinder up to speck? Callipers sticking causing pads to overheat and glaze? Share this post Link to post Share on other sites
2wheels 0 Posted September 13, 2011 Brakes on mine (mk1 4 pots) are shit hot! Couldn't believe how good they were to be honest. It's got an srad master cylinder but can't see that being much of an improvement Share this post Link to post Share on other sites
Kenb 0 Posted September 13, 2011 Pistons not operating at same rate when cold, resulting in partial braking power. A little heat and they work ok. Are any pistons sticking are they clean? Share this post Link to post Share on other sites
fr499y 0 Posted September 13, 2011 6 pots are pretty piss poor on the bandits tbf lol if it was to do with contaminated brakes, then it would be like it for a short while till they been used for a bit and be fine after, not always when cold unless you do actually clean it after every ride! Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @2wheels wrote:Brakes on mine (mk1 4 pots) are shit hot! Couldn't believe how good they were to be honest. It's got an srad master cylinder but can't see that being much of an improvementwonder if there's any difference between the master cylinder piston on a mk1 to a mk2 although mine are good when heated up so still leads me to a pad compound/contamination problem but i've already changed the pads from standard to EBC so I don't know and now i'm rambling Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @fr499y wrote:6 pots are pretty piss poor on the bandits tbf lol if it was to do with contaminated brakes, then it would be like it for a short while till they been used for a bit and be fine after, not always when cold unless you do actually clean it after every ride!I do clean it an awful lot maybe it is that simple? Share this post Link to post Share on other sites
trebor4460 0 Posted September 13, 2011 I replace the 4 pots for 6 pots on my mrk 1, sintered pads and stainless hoses, stops on a dime, progressive braking too, nice firm lever action too. Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @trebor4460 wrote:I replace the 4 pots for 6 pots on my mrk 1, sintered pads and stainless hoses, stops on a dime, progressive braking too, nice firm lever action too. Same set up as me then Rob and the lever has a firm feel just sh t brakes. Share this post Link to post Share on other sites
haveugot1 0 Posted September 13, 2011 Changing your discs is drastic so try the racing pads I've got in.They throw you over the bars from cold.Banks rd. Mike. Share this post Link to post Share on other sites
haveugot1 0 Posted September 13, 2011 Changing your discs is drastic so try the racing pads I've got in.They throw you over the bars from cold.Banks rd. Mike. Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @Kenb wrote:Pistons not operating at same rate when cold, resulting in partial braking power. A little heat and they work ok. Are any pistons sticking are they clean?Its been like it from new Ken but the pistons operate freely and can be pushed in with finger pressure and all move together. Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @haveugot1 wrote:Changing your discs is drastic so try the racing pads I've got in.They throw you over the bars from cold.Banks rd. Mike.Am gonna go after work tomorrow Mark Share this post Link to post Share on other sites
stantheman 0 Posted September 13, 2011 try giving them a good bleed mike ill bet youve got tiny air bubbles in the system which would cause the pads to catch when hot thereby glazing them oh youll also need new pads my mk 2 1200had good brakes but they did take a lit of bleeding when i fitted the hel hoses Share this post Link to post Share on other sites
stantheman 0 Posted September 13, 2011 @stantheman wrote:try giving them a good bleed mike ill bet youve got tiny air bubbles in the system which would cause the pads to catch when hot thereby glazing them oh youll also need new pads my mk 2 1200had good brakes but they did take a lot of bleeding when i fitted the hel hoses Share this post Link to post Share on other sites
gravelrash 0 Posted September 13, 2011 @stantheman wrote:try giving them a good bleed mike ill bet youve got tiny air bubbles in the system which would cause the pads to catch when hot thereby glazing them oh youll also need new pads my mk 2 1200had good brakes but they did take a lit of bleeding when i fitted the hel hoses won't hurt to bleed through again Stan, but wouldn't the lever be spongy? Share this post Link to post Share on other sites
stantheman 0 Posted September 13, 2011 @gravelrash wrote:@stantheman wrote:try giving them a good bleed mike ill bet youve got tiny air bubbles in the system which would cause the pads to catch when hot thereby glazing them oh youll also need new pads my mk 2 1200had good brakes but they did take a lit of bleeding when i fitted the hel hoses won't hurt to bleed through again Stan, but wouldn't the lever be spongy?mm i suppose it would maybe just new pads then Share this post Link to post Share on other sites
haveugot1 0 Posted September 14, 2011 Just thought mike have u made sure the brake lines are all on a downword angle, I had this problem when bleeding my clutch,the lines had a dip in them causing air to get trapped. Share this post Link to post Share on other sites
gravelrash 0 Posted September 15, 2011 @haveugot1 wrote:Just thought mike have u made sure the brake lines are all on a downword angle, I had this problem when bleeding my clutch,the lines had a dip in them causing air to get trapped.Same as Stans reply Mark if it was air wouldn't it manifest itself as spongy brakes,more lever travel to compress the bubbles. Mine has a firm lever, just no bite. So pads been the cheaper option is the way to go i think as EBC have'nt worked for me i'll try those you suggested mate! ..... when i get chance Share this post Link to post Share on other sites
stantheman 0 Posted September 15, 2011 why not take the pads out and give them a rub on some coarse sandpaper then give the discs a rub over with some finer wet and dry Share this post Link to post Share on other sites
gravelrash 0 Posted September 15, 2011 Done this numerous times Stan lasts about a week then returns back to no bite which is also why i'm ruling out air in the system, if doing this works initially my thinking is it has to be pads or discs and I don't use any sprays or bike cleaners anywhere near the brakes to contaminate them. Lee posted that his brakes are the same so not sure what it can be Share this post Link to post Share on other sites
oslin06 0 Posted September 15, 2011 There has got to be something wrong there I have an 04 B12 and the brakes are brilliant in fact too powerful, one finger is enough two in emergency, so there has to be something very wrong with yours.best go through the lot again for your own safety.just a thought the calipers are central to the disk are they? and not pressing the disk to one side so to speak, I had that once on a triumph, made the brakes almost useless by comparison.Keith Share this post Link to post Share on other sites
lee1 1 Posted September 15, 2011 with mine mike there not useless,but just seem very poor,compared to the four pots on my old b6Im going to fit some sinterd pads over the winter monthsI did strip them when I got the bike gave them a good clean and it made no differance at allIve even checked the brake fluid and its fine Share this post Link to post Share on other sites
stantheman 0 Posted September 15, 2011 try taking the master cylinder top off and prize the pads back they should go back easily if not they might be seized up Share this post Link to post Share on other sites
haveugot1 0 Posted September 26, 2011 Did u manage to sort your brake problem mike? Share this post Link to post Share on other sites
madcarper 0 Posted September 26, 2011 you havent fitted ceramic discs by mistake have you m8 when you bled brakes did you push pistons right back into calipers first , you could try your mates discs if his are good and they are still shite on your bike this will rule them outpad pins clean not stickingi have a vacuum bleeder if you want to try that m8. Share this post Link to post Share on other sites
gravelrash 0 Posted October 1, 2011 @madcarper wrote:you havent fitted ceramic discs by mistake have you m8 when you bled brakes did you push pistons right back into calipers first , you could try your mates discs if his are good and they are still shite on your bike this will rule them outpad pins clean not stickingi have a vacuum bleeder if you want to try that m8.Not been able to do much due to work BUT thanks for all the response Stan the pistons move back smoothly under hand pressure so not sticking pistons. Ian original discs so unless contaminated shouldn't be an issue and have new stainless pad slider pins in. I have just bought some Bendix brake pads (come highly recommended from some dedicated track day mates)and will change the EBC HH sintered ones I have in to these and update the results as i think its a brake pad issue Share this post Link to post Share on other sites
stantheman 0 Posted October 1, 2011 its got to be the pads mike sounds like theyre becoming glazed Share this post Link to post Share on other sites
haveugot1 0 Posted October 1, 2011 Bendix r really good mike that's what I'm putting in my mini cooper s. Share this post Link to post Share on other sites
gravelrash 0 Posted November 8, 2011 Just to bump this post and let you know especially Lee, put Bendix brake pads in all round after giving the calipers a good clean front and rear, they've been in a couple of weeks now and what a difference , instant bite and no fade even from cold, so really pleased and if your still not impressed with yours Lee might be worth a try. Everyone seems to rate EBC D.S pads but for me no good when cold but now a Happy Bunny! thanks everyone for your response Share this post Link to post Share on other sites
Davehutch-hutchs 0 Posted November 8, 2011 @gravelrash wrote:Just to bump this post and let you know especially Lee, put Bendix brake pads in all round after giving the calipers a good clean front and rear, they've been in a couple of weeks now and what a difference , instant bite and no fade even from cold, so really pleased and if your still not impressed with yours Lee might be worth a try. Everyone seems to rate EBC D.S pads but for me no good when cold but now a Happy Bunny! thanks everyone for your response Nice 1 result Share this post Link to post Share on other sites
fr499y 0 Posted November 8, 2011 still dont see what the hype is with brakes, who needs them Share this post Link to post Share on other sites
dick65 0 Posted November 8, 2011 @Davehutch wrote:@gravelrash wrote:Just to bump this post and let you know especially Lee, put Bendix brake pads in all round after giving the calipers a good clean front and rear, they've been in a couple of weeks now and what a difference , instant bite and no fade even from cold, so really pleased and if your still not impressed with yours Lee might be worth a try. Everyone seems to rate EBC D.S pads but for me no good when cold but now a Happy Bunny! thanks everyone for your response Nice 1 result excellent news that mate,might try some Share this post Link to post Share on other sites
lee1 1 Posted November 8, 2011 cheers mate will get some when I service the bike Share this post Link to post Share on other sites
haveugot1 0 Posted November 9, 2011 Glad u got it sorted mike, they are good pads.not heard from u for a bit is work busy? Share this post Link to post Share on other sites
gravelrash 0 Posted November 9, 2011 Its a bit manic Mark but since getting the dog its like having a 2 year old in the house again can't get anything done hows that shiny bike of yours? Share this post Link to post Share on other sites
stantheman 0 Posted November 9, 2011 pleased you got it sorted mike maybe the last pads were a bad batch or even snides sold as ebc Share this post Link to post Share on other sites
gravelrash 0 Posted November 9, 2011 @stantheman wrote:pleased you got it sorted mike maybe the last pads were a bad batch or even snides sold as ebc Thanks Stan, just nice to have a bit more confidence that i'll stop, especially this weather mate! Share this post Link to post Share on other sites
Stue11 0 Posted November 9, 2011 @stantheman wrote:pleased you got it sorted mike maybe the last pads were a bad batch or even snides sold as ebc nothing worse than having brakes pleased you got em sorted Share this post Link to post Share on other sites