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Old 3rd January 2009, 16:41   #1
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Default Disc Brakes of 2-Wheelers -Problems & Solutions !!!

Hi, the disc brake on my RXZ 5speed are jammed, was rideing yesterday when i suddenly noticed a drop in pickup and then the front tyre got jammed. got the mech he took it to his workshop and opened it and cleaned and refitted it, but still the front wheel isent free enuff, its rotating in a restricted way, the wheel dosent even take a full round when pused with the front tyre up. any inputs from disc brake gurus or Yamaha RXZ owners?
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Old 3rd January 2009, 16:58   #2
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Waiting for Inputs as the bike is still at the mechs I dident accept it as the front wheel isent rotating freely.
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Old 3rd January 2009, 17:04   #3
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bleed the brake and also check for the return spring in the caliper and the mater cylinder, once the system gets old these loose their properties.
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Old 3rd January 2009, 17:05   #4
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madhokritesh can you hear the pads touching the disc while rotating it with hand? if yes then just ask him to adjust the disc pads and bleed the brake. that should solve your problem.
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Old 3rd January 2009, 17:35   #5
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Is the return spring for the RXZ Discs available??
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Old 3rd January 2009, 19:53   #6
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Get the caliper serviced. The piston might have corroded resulting in it getting stuck in the caliper instead of retracting back. Afaik ther aint no return spring inside the caliper.
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Old 4th January 2009, 12:42   #7
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Just got back from my mech, he says that the Discbrake needs a new set of O-ring, as there is no compression in it due to the old O Ring and thats why the pads are jamming the Disc. Any inputs guys???
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Old 4th January 2009, 12:48   #8
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Get the o-rings changed and the caliper piston checked for corrosion and clean if necessary. Nothing to worry about this is routine caliper servicing procedures.

And insist on replacing the old brake fluid in the complete system with new brake fluid from a sealed container. Don't forget to bleed the system properly.

Last edited by Sankar : 4th January 2009 at 12:50.
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Old 4th January 2009, 12:54   #9
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The O Rings are not available for the RXZ, any replacement ones known??
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Old 4th January 2009, 13:08   #10
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That news is not good man. For Pulsars the caliper overhaul kit is available which contains the O-rings. Take your o-ring and see if another bike's matches it, try pulsar's first.
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Old 4th January 2009, 13:30   #11
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The mech said its different rightaway or he wud have replaced it with the Pulsars, Now what? the tyre is rotating but not freely and am scared it may get totally jammed as it did the other day and I may have a fall.
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Old 4th January 2009, 14:35   #12
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Can anyone get me a Disc Brake Overhaul kit for Yamaha RXz or provide links as to where i can get it from.
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Old 4th January 2009, 16:09   #13
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try gladiator's or R15 ..
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Old 18th March 2011, 14:25   #14
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Default re: Disc Brakes of 2-Wheelers -Problems & Solutions !!!

In Pune does anyone know where I can get the caliper rebuild kit for Bajaj Pulsar? How much does that cost? One of the pistons of my front disc brake is jammed. I need to try and rebuild it. A new KBX caliper costs Rs. 1275 as quoted by mechanics. The rebuild kit with the O-ring and dust cover should be very cheap. And I have already bought a bottle of Dot-3 brake fluid for Rs. 40.
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Old 18th March 2011, 15:10   #15
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Default re: Disc Brakes of 2-Wheelers -Problems & Solutions !!!

Ask for 'minor kit - brake caliper'

Part no. DE 1510 51

It contains the Oil and dust seals, bleeder cap, dust cover and insulator. If you also want to replace the pistons , then ask for 'major kit - brake caliper' (DE 1510 52)
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