racersk66

hey whats up guys i just bought a new frame for bmx trail riding and dirt jumping i wanted to put hydrolic disk brakes with iether 6 or 8 inch rotors has anyone ever done that and have you used a gyro with the brake fluid tank down by the brake itself or does it have to be in the brake handle like most full suspension downhill bikes
thanks J

xxmoclov42xx

Never heard of it i dont even know if it can be done but good luck trying it.

PunkGuy

use cable disk brakes if. lighter.

queensrider86

there are like 3 threads on this.

CMcMahon

Totally ******** stupid.

Brian

There's no such thing as "Hydrolic disk" brakes. Disc brakes on a BMX is a stupid idea. Hydraulics will not work with a gyro. 8 inch rotors would be total overkill and a waste of money. And the reservoir is in the lever.

wethepeople

funn makes the only disc hub that will accept a 14mm axle. And good luck buying one seperate, they only come on one complete bike, and if your gonna run to rotors your gonna get two bikes (banshee scratch).

Also you should be treated with a short drop with a sudden stop for asking about hydros.

Brian

English, please?

racersk66

so the first guy that posted a follow up has the same idea i do im jus gunna do it for ****s and giggles and bc i like hydro disk

Brian

And your fork and frame both have DISC tabs, right?

racersk66

nope i got a welder a grinder a torch and more money than i could possibly need and all the other tools i could possilbly need

Brian

Bridgeport Mill? Drill press? Oh wait, you have all those tools, and more money than you could possibly need? Great, all you need now is some basic metallurgy skills coupled with design/engineering knowledge. Be prepared to put your money where your mouth is, and post some photos.

racersk66

drill press yes 3 years metal working yes mill no but ill post pics of things i got lata

Brian

Just post photos of the brake mounts and brakes. You know you probably can't fit an 8" rotor inside the chainstays, right?

hypersnazz

Besides the metalworking tools you'll also need several tools to put mounts on your frame and fork that are disc brake specific and are simply NOT worth it unless you plan on mass-producing these suckers. Not to mention the fact that you will basically have to *invent* and then create your own rear hub since a 110mm disc hub simply does not exist.

Brian

Welcome to the party, Snazz. If he actually attempts it, he'll ruin a frame and fork. Valuable learning experience in there somewhere.

racersk66

im not afraid of ruining anything i have more bikes than i know what to do with so one of them being ruin is fine by me its just a frame

Darin

I'd like to see before and after pics. Sound like a good experiement. Go for it and let us know how it goes. Sometimes very good thing come from seemingly strange ideas. I'd also l like to see a 1 to 2 inch travel very stiff suspension frame for bmx for the harsh landings. Plus it would save your back wheel. I could probably be done with out alot of added weight.

hypersnazz

Many have tried, all have failed. As far a disc brakes go...besides the fact that discs are simply too vulnerable on 20" wheels, why the heck would anyone need that much stopping power on a BMX bike? Dirt jumpers aren't on their brakes very hard and rarely get up into even the 20mph range. Even the guys on 26" dirt jump bikes are pretty much all running mechanical discs. This just *isn't* downhill where it's reasonably possible to push 40-60mph over SEVERAL MILES. BMX doesn't even come CLOSE.

The bottom line is that disc brakes meet a demand that BMX bikes simply do not make.

CMcMahon

Not to mention the fact that there's absolutely no reason for suspension on a BMX bike. If you're having trouble with "harsh landings", maybe you should go faster and not stack and/or ride like a total sketchball.

zx108

i doubt this will work, it WONT with 8 inch rotors. but i would like to see it, so more power to ya buddy.

out of curiosity what discs were you thinking of using.

Brian

A single set of Avid SD3 V brakes can stop me on my cruiser, so a kid on a 20" has no need for a disc.

racersk66

Avid BB5 w/6" rotors basically the same that is one the cannondale gemmine 600 just a smaller rotor fro what im usin

racersk66

im runnin oddy evolver u brakes and like them but when the get wet they suck cool stop brake pads are amazing because they lock up on my sunringle rims but i just want disk for trail and dirt and a lil bit af down hill and a ski restort during the summer that i work at

kwhord

another great thread for the bmx forum