Got two Hayes El Camino caliper that I need to run off of one lever. The El Camino lever doesn't have a big enough piston to power both. Has anyone done something similar before? Anyone know of a lever that will work?
2 Calipers off 1 lever
- Thread starter Bebbster
- Start date
find someone who has done work on those quad-bike things at whistler, they would know all about that stuff
The El Camino lever will give you enough power, but you'll have to deal with having twice as long a throw. I THINK that Grimeca System 12 levers have a slightly bigger master cylinder than most, that might be some use.
cant you somehow rig two levers on one bar and connect them both at the lever blade?
just thinking out lout maybe you could make a new rear handlebar connector plate that connects two levers?
just thinking out lout maybe you could make a new rear handlebar connector plate that connects two levers?
If i recall correctly, Stacy Kohut has 2 lever/master cylinders per side on his quad in NWD2 or 3. I'm not sure how they are mounted though.
Just out of curiousity, for what purpose are you doing this?
^^ so he can run both shifters on the other side.
mandown said:
:nonono:
a poster on hcor (name Lefty, I think) used to run both his brakes on one side, but kept the levers seperate so that he could modulate the brakes differently front to back. just a thought.
i dont see it amounting to anything in mountain biking at all. there are so many steep washed out trails where i ride down with only the front brake on slightly and then i just use the rear brake to get the rear end around.dhbuilder said:
i've been around long enough to witness a few one armed riders who ride with a prosthesis and one hand to handle the controls.gnurider1080 said:
like i said, an adjustable proportioning valve.
i'm like you though.
i'll use two levers to control my machine.
It's not for any of the reasons mentioned above. It's not even for a bike. As part of a project at work we're building a sopabox racer.
We want to put brakes on all 4 corners, but have the front two calipers on one lever, and the rear two on another lever. The levers are mounted to the back of the steering wheel, and there's not enough space to mount 4 levers. We've previously just been running cable disks just on the front, but they don't have enough power, and at the last race we had the disks glowing red, which doesn't do it much good!
Cheers for all the suggestions so far.
We want to put brakes on all 4 corners, but have the front two calipers on one lever, and the rear two on another lever. The levers are mounted to the back of the steering wheel, and there's not enough space to mount 4 levers. We've previously just been running cable disks just on the front, but they don't have enough power, and at the last race we had the disks glowing red, which doesn't do it much good!
Cheers for all the suggestions so far.
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I was hoping it would be for something sweet like this. Good luck d00dz.Bebbster said:
there was a post a while back about a quad bike, he was running two hope m4s off one mini leaver. i dont think you would get double the leaver throw, you would just get half the clearance between the pads and the disc.
about the quad in nwd5, his leavers were bolted together, so that they move together.
about the quad in nwd5, his leavers were bolted together, so that they move together.
Maybe try looking at go-kart brakes. (Racing karts, not the little putt putt carts) Most karts only use on brake at the rear axle. Some of the higher powered karts use front and rear discs. They may bewhat you are looking for. I highly doubt that a soapbox car will go faster or need more braking power than a kart.Bebbster said:
Also, if your rotors are glowing red, you'll need more than just a change from cable to hydraulic actuated brakes. You need bigger brakes.
if your discs were glowing bright red, then hydros aren't really going to help much with heat dissipation. maybe going to bigger rotors might help?Bebbster said:
and as for running two calipers with one lever, maybe run a single 8" rotor in the center of each axle? just a thought...
pretty cool rig, but I like the wooden box+baby-carriage-wheels better though. :eviltongu
The brakes were getting so hot because they were so ineffective that you had to pull them on very early, and not the quick blast you'd need with some powerful brakes. Also going to be adding some cooling ducts to the wheel covers.dante said:
Can't run one rotor in the centre of the axle because each wheel is independant of each other.
I'd much rather build a simple wooden one, would be much easier! But this is what happens when an F1 team gets involved in soapbox racing!!
We looked at kart brakes, but they're too bulky for what we need.
Cheers.
If by "might not be a bad idea" you mean "a horrible idea" then yeah.dhbuilder said:
Try using your theory to brake on anything off camber. Or when the bike is leaned over. Or in a corner. Or when going down rocky stuff. Or really any possible time it would be a terrible idea, except for maybe hybrid and commuter bikes. Having the inability to choose which brake you want to use would not only be terrifying , but really dangerous.