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Re: Rear disc brake
Posted: Wed Jan 08, 2014 3:14 pm
by MCH
changing the rear tyre is a ball ache as you have disconnect the caliper and the arm, but hey thats the price you pay,
the rear light works by using a valve switch thats connected to the caliper, so when the break is on, it switches your break light on, you have to wire it up though so it works,
the mmw version is right hand side and means you can replace the tyre more easily, but it is way more expensive,
as for using the existing pedal on, you will have to fabricate a rod of some sort attached to it and then have a master cylinder attached above it on the frame,
have a look at sips inglorious b@5t@rd scooter to see what i mean
Re: Rear disc brake
Posted: Wed Jan 08, 2014 7:53 pm
by GLscoot
Yeh, I have seen SIP's Glorious Basterd but the pedal on that scooter is no longer available. You have to buy a master cylinder kit £245 plus the £425 for the MMW rear disc unit, nothing SIP do is cheap now. I wanted to fit drop bars, but they are another £400+. Just bought a front master cylinder for £160. I think by the time I finish this project, I could have got Italy out of debit.
Re: Rear disc brake
Posted: Wed Jan 08, 2014 8:17 pm
by MCH
can't be that hard to make the rear brake up like sip did, get to a bike breakers and look for the master cylinders they use on bikes and make one for it, they use the same principle of a rod which is pushed by a pedal on a pivot point,
i got the master cylinder for mine from a bike breakers for a fiver and got a braided hose for a fiver
Re: Rear disc brake
Posted: Wed Jan 08, 2014 8:46 pm
by GLscoot
Those parts are fine and easy to get hold off, it's the brake pedal and pressure pump, which costs the £245 and they throw in the hose and reservoir for nothing.
That part of the project can wait until the cash has magically appeared from nowhere. Should be able to fit this at a later date.
Re: Rear disc brake
Posted: Wed Jan 08, 2014 8:59 pm
by wack 63
Personally I wouldn't bother,more weight and hassle just for something that looks trick. I've not come across a bad vespa rear brake yet. The brake light switch is a banjo bolt type from Demon Tweeks that works on fluid pressure.
Re: Rear disc brake
Posted: Wed Jan 08, 2014 9:33 pm
by GLscoot
wack 63 wrote:Personally I wouldn't bother,more weight and hassle just for something that looks trick. I've not come across a bad vespa rear brake yet. The brake light switch is a banjo bolt type from Demon Tweeks that works on fluid pressure.
Your probably right, it's more the look I like.
My plan is to make it very engineered, with a natural finish on the body work, dents and imperfections visible to the eye.
Re: Rear disc brake
Posted: Mon Jan 13, 2014 10:28 pm
by MCH
im actually looking at selling my whole set up soon, need money for other projects, if anyone is interested, pm me,
i have had one offer but the lad has just been made redundant so might not be able to pay up for it, so im opening it up to anyone,
i will put it up in the for sale section once iv taken it off the scooter, but if anyone wants to be in first after reading this message me
Re: Rear disc brake
Posted: Thu Jan 16, 2014 10:44 pm
by victor
GLscoot wrote:wack 63 wrote:Personally I wouldn't bother,more weight and hassle just for something that looks trick. I've not come across a bad vespa rear brake yet. The brake light switch is a banjo bolt type from Demon Tweeks that works on fluid pressure.
Your probably right, it's more the look I like.
My plan is to make it very engineered, with a natural finish on the body work, dents and imperfections visible to the eye.
I don't understand it either, there's basically no weight on the rear wheel of a vespa when braking and even the lightest touch of the drum brake will lock up the wheel send it skidding all over the place...
Many heavy motorcycles didn't have rear disk brakes until recently and we are talking about 200kg+ bikes that are capable of many times the speed of a scooter and also have a better weight distribution over the wheels due to being much longer although even big bikes have fairly little weight on the rear wheel when braking heavily, so don't really understand the need for a disk brake at the rear unless it's for show purposes only which it seems to be in your case. Quite a cumbersome and expensive project though...
