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Post by MrBraco on Feb 20, 2011 11:57:40 GMT -5
Hi, i would like to know if it is possible (at least in theory) to convert rear drum brakes to disc brakes? because i just dont trust my rear brakes. besides not having a socket big enough to take the wheel off...
What do i need for such a thing? a second front wheel? whelding some mod on the rear wheel? Did anybody tried ? Has to be!!
Thanks.
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Post by sprocket on Feb 20, 2011 12:34:36 GMT -5
The rear drum brakes on scooter are not designed to stop it. You should be using both brakes at the same time. 90% of the stopping power is done by the front disc and 10% by the drum. The drum really only prevents the rear of the bike from cutting loose in a stop.
Yes you can make a conversion. Many wheels are now drilled and tapped for the rotor. You will need to modify the the left brake handle and plastic, perhaps change the electricals, purchase the lines and callipers and figure out some way to mount the calliper. Some engines have a mount some don't... and by the time you are done it would probably cost more time and trouble than it is worth...
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Post by MrBraco on Feb 21, 2011 11:03:32 GMT -5
Well here is the thing, one time, I crashed because the throttle cable was stuck under the battery from the time i bought the scooter. Was at a gas station, on center stand, just added a Gal of fresh fuel, get on my seat, start my engine, gave a little juice to get off the station, ... next thing i know, the scoot ran to the curve in front onto a Big #@$K* electric pole!!! of course i pressed the brakes,.. but when the rear wheel is pushing with more force than you expected, the front wheel blocks, skid on the ground and smashed the complete right side. when i open my eyes, i was on the ground, surrounded by people and barely yelling "how 's the scooter" , some dude said to me: "forget about the scooter man! Are you OK?" So yes, i really want rear disk brakes! Does anybody can get me a clear picture of your rear disk brakes, i can't seem to find anything usable online. however, this pic shows a system not so much different to mine.. Thing is can't see the mounts, if there was no exhaust it would be great.
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Post by Bluefront on Feb 21, 2011 11:22:37 GMT -5
In theory such a conversion is possible.......but it would be so difficult and costly (unless the scoot was designed for such a conversion), that the practical way to get a rear disk is to sell your scoot, and buy one already equipped with a disk. The problems you've been having with your drum are not at all typical. Those things are normally reliable, and work well enough for a small scooter.......particularly as a rear brake. IMHO.....rear brakes provide around 30% of your stopping power, but should be capable of stopping the scoot without the use of the front brake, if installed properly and maintained. My first scoot (Cushman) had a foot-operated rear drum brake only.....stopped well enough to save my butt many times. Here's a pic...
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Post by sprocket on Feb 21, 2011 11:55:23 GMT -5
Your scooter is not designed for rear disc brakes
If you want them that bad, sell your scooter and buy one that has them...easiest route...
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Post by leroysunl on Feb 21, 2011 12:58:31 GMT -5
I have a 2008 SunL scoot w/rear disc brake I am parting out. 13" wheel w/disc. Let me know if interested. 530-662-0952
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Post by MrBraco on Feb 21, 2011 13:39:14 GMT -5
Your scooter is not designed for rear disc brakes If you want them that bad, sell your scooter and buy one that has them...easiest route... humm, let see.. how much can i get for a scooter with 11500 km on it? Zip!
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Post by sprocket on Feb 21, 2011 14:36:33 GMT -5
leroysunl You should sell him the engine too...since he has pulled his all apart. That way he will have the correct attachments on the engine case for the rear calliper
mrbraco Last time I help you DAWG... sorry!
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