| Author | Message | ||
     Pontlee77 |
Hello, i installed an 8 piston caliper TZL2 with the right master cylinder, the braking is fine, but i wish to be able to apply more braking power with a bit less of effort (i have a neuro muscular disorder that makes my hands not to be as strong as any normal person, and lately i see my self in need of using 3 finger to brake hard) so has any one have an idea of how to make this better? i'd like to keep the hand guards still on the bike, i guess people will suggest radial master cylinder, but is something i wasn't planing. | ||
| Rdkingryder |
EBC HH pads have a high friction point, guess that means they are grippier. I always replace my pads with them on all my bikes and have been very happy with them. http://www.cyclebrakes.com/html/ebc_brake_pads.htm l I've just replaced the rear wooden blocks Buell call rear pads with the HH and noticed way better braking with less effort. (Message edited by rdkingryder on May 20, 2012) | ||
| Pontlee77 |
Thanks I do use those pads since the first change of pads, i think i'll try some time later the old 6 piston caliper, i don't know if the problem are my hands or the 6 piston had some more agresive braking, as i seem to remember. | ||
| Uly_man |
"lately i see my self in need of using 3 finger to brake hard so has any one have an idea of how to make this better?" Use all 4 fingers, move your hand further out for better leverage, change pads, clean disc, change brake fluid, ride slower or better still use the rear brake and/or the engine. | ||
| Pontlee77 |
Uly_man, except for the 4 fingers i do all that. Thank you. | ||
| Uly_man |
Pont the best idea is to fit a bigger master cylinder setup. You can fit most any system to this bike. Its standard stuff and a radial master should not be needed. Sounds like you need the "touch power" of a race bike to counter your hand problem. Thats something you will need to make work for you with testing and the like. Not many others would need it. | ||
| Panhead_dan |
What we need here is someone who knows about hydraulics and leverage and it's not me. It seems like a slightly bigger bore in the master cylinder would give a slightly stronger advantage. Be careful with this, it could put you on your butt quick. Hopefully, someone with proper knowledge of this fairly simple system will chime in with a more valuable suggestion. | ||
| Pontlee77 |
When i got the 8 piston caliper i got the bigger master cylinder if i'm not wrong the 6 piston uses 3/8 and the 8 piston uses 1/2 if there is a slightly bigger one possibly it would be the way to go, i'm open to all ideas. Thanks. | ||
| Tleighbell |
If you go to the Vintage Brake website, there is a discussion about master cylinder piston ratios that might be helpful. | ||
| Natexlh1000 |
I wonder how hard it would be to run some sort of linked braking system off of the rear pedal? Probably pretty hard, I bet. | ||
| Uly_man |
"8 piston uses 1/2 if there is a slightly bigger one possibly it would be the way to go, i'm open to all ideas." I would not myself Pont. It depends on what you mean by "hard braking" but if you can not ride safely on any normal spec bike then you may have insurance issues. They would be A) you are not of normal health to ride a bike and B) You have modified the braking system of your bike which could be a VERY serious issue unless you tell them. Apart from all of that a calipers pistons are matched to the master cylinder. Oversize it and you could have problems. | ||
| Pontlee77 |
Uly_man, i can ride with out any issue, just i want a bit more of power braking with 2 fingers, as i'm not used to using 3,4 fingers to brake, on the triumph tiger explorer with a lot less leverage the stopping power was great even with 1 finger, so there must be a way to make it better on the uly. | ||
| Mark_weiss |
A larger diameter master cylinder bore will increase braking effort. With the larger bore, the ratio between the area of the master cylinder and the area of the pistons decreases (you get closer to 1:1). A larger bore reduces lever travel, but increases effort. For low effort braking you would need to change to a smaller bore. This will increase lever travel, but decrease force needed. | ||
| Mark_weiss |
Alternatively, there are a few companies (Brembo, Accosato) which manufacture master cylinders with adjustable lever pivots. This allows you to vary leverage at the lever without messing with the plumbing. | ||
| Hughlysses |
+1 to what Mark said. Smaller master cylinder bore = more braking force at caliper (or less effort at brake lever). | ||
| Mikef5000 |
Smaller bore = More Braking Means Use the 6 piston 3/8" Master Cylinder with your new 8 piston caliper. Problem solved, free of charge! Disclaimer; be careful at first! | ||
| Jk651 |
I second what Mike says. Try the master cylinder for the 6 piston caliper. The smaller bore will give you a leverage advantage, but be careful at first because a) it may give you more power than you expect, or b) if it's too undersized it may not have enough travel in the lever to apply full stopping power. | ||
| Pontlee77 |
thanks for the advices, i'll give a try to the 6 piston master cylinder, i have crg lever so i can give it a bit more of distance. Lets see how it works out. |
