| Author | Message | ||
     Dinuns1 |
Hey i was wondering if anyone , ever used a 4 piston pm caliper on the rear , but made a bracket to use a larger rotor , the tiny one on there doesnt cool very efficently an i go through pads every 1500 to 2000 miles . | ||
| Dinuns1 |
i have a drawing if you know someone that could do this but need real measures if you have a pm bracket i can buy for modifyng and usin the demo , ill make extra | ||
| Buellistic |
Rear brakes have enough pistons, more pistons on the front brake is a better idea ... | ||
| Dinuns1 |
Thanks for the input , but that added nothing to help , why cant people answer the question on hand , or at least if there not gonna answer add something valueble . sorry if i come off like a dick but everytime i read a post theres someone that offers no valid info . | ||
| Sloppy |
Buelli was actually being extremely helpful... You should go through your rear pads at a ratio of ~ 1:4 to your fronts. Getting a caliper with more pistons will only go to help the economy. There's something VERY, VERY WRONG, if you are going through rear pads every 2000 miles. I get about 20,000 miles out of my pads. Perhaps a simple rebuild is in order if your brakes are dragging which is causing high wear? Even a change in riding technique can help diagnose the problem. But if you want the "bling" of more pistons in your rear calipers then you'll have no assistance from me. | ||
| Buellistic |
"I" CONSIDER THAT A QUESTION OF SAFETY AND AN UNSAFE ONE AT THAT !!! You do not want to put yourself in a position to lock up the rear wheel, it's bad enough to lock up the front wheel ... | ||
| Buellistic |
"NOW" lets address the POOR PAD MILEAGE ... If you do not change the BRAKE FLUID in the master cylinder once a year(this "INFO" has never been found by me in any PREVENTIVE MAINTENANCE publication or FACTORY SERVICE MANUAL)the caliper pistons will not with draw into the caliper causing pad drag[premature wear out] !!! Even on a good caliper you should put NAPA "Disc Brake Quiet" on the pads so that when the piston/pistons pull back into the caliper the pads moves with them away from the rotor !!! | ||
| Dinuns1 |
buelllistic , i change the fluid often , caliper is not dragging , and being able to lock up the rear wheel is no problem as long as you know what the hell you are doin , if small rotors were practical you wouldnt have a 13'' rotor on the front , if could get rid of i think its 8 or 10 and put a 10or 12 it would asssit in the cooling . i ride hard and brake hard , compound of pad has a lot to do with it . Sloppy , cause you get 20,000 miles out of pads , what do you get out of tires im good for a rear tire every 3000 miles | ||
| Buellistic |
Dimuns1, if you are not running RACING QUALITY PADS, well that the next try ... | ||
| Dinuns1 |
NO !!! I WANT A BIGGER ROTOR ,!! | ||
| Phelan |
You should learn to use the downshifting for engine breaking. I don't even use the rear brake. Too much rear brake will just make your back end slide out and put you on the ground. All the weight is shifted to the front during braking, so trying to use the rear to do most of the braking is inefficient and unsafe. Us you can downhift and the engine will stop the rear better than the brake will. | ||
| Dinuns1 |
i use the engine , guys im sorry i asked this question. all i want to know is if anyone did , a one piston rear brake sucks , my custom softail i built has a 4, jap bikes have a 4 . 4 is not to much , as long as you know how to ride . i also am running a drum brake on my other custom build so its not about need and about want . now if anyone has put a bigger rotor on. thanks in advance if you have. | ||
| Sloppy |
Wow... So next time just ask: "anyone put a larger rear rotor on a buell?" Instead of complaining that you don't get enough mileage out of your rear pads. We're just trying to help you from wasting money is all. And yeah, I have only gotten 3,000 miles out of a rear tire before. Still my rear pad lasts 20,000+ miles... But that's why we love capitalism. It's your money, you decide how you want to spend it.  | ||
| The4ork |
man wish mine went 20k, i got about 8k out of mine, factory pad and i hardly ever use the rear cause im too lazy to move my foot unless riding hard. | ||
| Kalali |
I suggest you post the question on the XB board. More people there race their bikes and use bigger everything... Looks like folks here, including me, don't have a similar issue and if we do, have other potential solution(s), than a bigger rotor in mind. Keep us posted how it works out for you. | ||
| Jayvee |
I have a 4-piston PM caliper, on a bracket custom-made by BRG Racing, but I changed to the early-style 'holey' rotor in stock diameter, because nobody seems to sell a kit or bolt-on bigger rear rotor. Something like that, a local race shop could make, should be fairly simple. I can't recommend BRG, but either of these places: Kosman Racing, in Sebastopol, or Banke Performance, in Felton (near Santa Cruz) can make the bracket you need, and adapt a rotor to fit the wheel. I won't be exactly cheap. About $100 an hour, however long it takes. Shouldn't be more than a day, though. I bet you have a localer race shop that could do it, too. (Message edited by jayvee on May 17, 2010) (Message edited by jayvee on May 17, 2010) | ||
| Phelan |
Only jap cruisers have 4 piston rears, because most cruisers only use the rear brake because they're dumb. The sportbikes almost all have 2-piston or single piston calipers. I ride the shit out of my bike, even low-sided 2 days ago on 336 north of Leakey. Rear brake wasn't the problem on any of that twisty trail. If you insist on a bigger rotor, you'll have to source it yourself, and probably redrill it to fit your wheel. Building a caliper bracket really shouldn't be as big of an issue as you make it sound. I have a welding buddy and took him my design and needs for a front caliper bracket and he built it for me in a couple hours. He didn't even charge me. I don't use it now that I have XB forks, but I did use it for 2500 miles with no problems. | ||
| The4ork |
theirs twisties in TX? LOL | ||
| Sanchez |
> i go through pads every 1500 to 2000 miles Are you riding with your foot resting on the pedal or something?  I use the hell out of my rear brake, and I still get 15k out of the pads. A newer Buell caliper might help with stopping power. The caliper on my Ulysses looks like the one on my S1, but they feel much different. I can easily lock up the rear tire on the Uly, but I have to stand on the S1's rear brake just to keep it from rolling backwards on a hill. I don't know if that's because the S1 caliper needs rebuilding or because of some design change between 98 and 06, but it's worth looking into. | ||
| The4ork |
possibly a weak or leaking master cylinder also. my s1 is the same, i have to STAND on it to lock it up, on my 02 blast it locks up really easy |
