Brake caliper?

[lazza]

Hi all, I'm in the process of building a 5 cylinder, 2litre, fuel injected trike and i'm at the stage of sorting out the brakes on it. According to the new rule change for trikes they now need a handbrake and the easiest way i can see for my design to do that is to mount a extra caliper to the front wheel ( which is a CBX750 dual brake setup). I'm not too familiar with the ins and outs of road bikes but was wondering if there is any form of motorbike out there that has handbrake setup built into the caliper ? (IE: a cable operated handbrake system like cars).

cheers

[imdying]

Heck I hope not... the car ones are bad enough. Post some pics of yoursetup, I'll see if any suggestions pop into mind. Nowhere on your driveshaft you could mount a disc?

[gammaguy]

some of the bigger scooters such as the Suzuki AN 650 have a disc parking brake setup:cool:

[lazza]

well the setup i have is currently on the back of the trike where the motor is, is i'm using the original Honda Vigor front subframe, suspension , axles and brakes on the rear of the trike all of which is not modified from the original Donar car, to adapt handbrake capable calipers ( such as off the rear of a car) would be a PITA cause the discs are fixed to the rear hubs and therefore i'd have to find calipers that could be made to fit the existing hub/disc assembly. Just makes more sense to me based on the fact that the trike is a automatic and handbrakes nowdays are classed as a "parking brake" and not a emergency brakes that having a small mechanical caliper mounted to the CBX750 front wheel would be tidier, easier and would leave the backend un modified whilst i leave it in "P" for park :p I was looking for a burst of inspiration hence why i thought i'd ask if there is a motorbike out there that has a decent mechanical caliper.
PS: pictures of my build are on my website - http://www.hovercraft.geek.nz/customtrike.htm

[MaxB]

This is probably a long shot but maybe you could adapt an Ate caliper from the 70s/80s BMWs. They run a short length of brake hose to an underslung small master cylinder which is actuated via a cable that runs up to the lever. The cable could be fitted to a car type ratchet handbrake lever.
You would probably end up with 2 calipers on one disk and have to make up a mount but it is only a handbrake.

[lazza]

well i was originally going to lock the front brake caliper on like atv's do but i rung the certifier today and he said no it has to be solely mechanical and hold at least one axle. so i mentioned isn't that what putting the trans in "P" does ? it's completely mechanical and locks both axles solid but apparently thats not good enough either

[vagrant]

You could try a caliper from a pit bike or mini bike. A lot of those have a cable operated setup.
The suzuki jog scooter also has a cable operated front brake.

Or perhaps a hydraulic read brake setup like this,
http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Parts-accessories/Wheels-tyres-brakes/auction-163068199.htm
with a car type hand brake lever operating the master cylinder.