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Brake Is too Tight, How do I losen it? [Archive] - The Sportbikes Website
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furious_fiero
10-30-2004, 01:14 AM
I just bought this chome bike and Im having problems with the rear brakes. They are too tight and I cant figure out how to losen them. They are the typical pocket bike disc brakes. Can anyone give me some suggestions on how to losen them?

http://img72.exs.cx/img72/499/PA270737.jpg
mblough
10-30-2004, 04:58 AM
Yes look where the cable connects into the rear assembly. You see the clamps that hold the cable. Just loosen them up and give the cable a little slack.
Scott H
10-30-2004, 06:16 AM
There is also, or should be, a set screw locked down by a 10mm nut. This adjustment sets the "gap" of the moveable pad. By turning it CW it gets closer to the dics, CCW further away.

If this is a brandnew bike, do not forget to clean out your tank. There is always debris in there and it WILL find its way to your carb. Also adjust the chain, they come from China rediculously tight.

Hope this helps
Straydawg63
10-30-2004, 06:54 PM
You may need to get some thin shiming washers and shim the brake assembly over oneway or the other to center over the disc
hdnixon
11-01-2004, 12:35 AM
You will find that the brake caliper isn't square to the frame and the pads rub on the disc

I have a Bossini in the UK - Very very similar to yours !! Just the name thats different. You may find that the easiest way is to remove the rear wheel and throw away the spacers on the right hand side. Get a pack of washers from a DIY store (different thicknesses) and use these to build up new spacers.
You may also have to bend the brake bracket closer to the swingarm so the brakediscs dont rub. You should eventually get the wheel to run free.

Also, try this : Put the bike on its stand and tie the front brake on. Now lift the tail unit and watch the headbearings... The one's on my bike were a loose fit. I had to go to the car store and buy some stud and bearing fit. Then take the front end off completly and take the bearings out and put the bearing fit onto the edges then refit the bearings.
The loose bearings caused to bike to wobble at the front end when travelling at speeds or when the throttle was closed.

These chinese bikes often need a lot of preperation and maintenence before use. The plus side is that they are so cheap to buy