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Post by pouchy750 on Sept 5, 2012 3:34:16 GMT 1
I've just bought a 1989 RZ350 F2 YPVS to go vintage racing & find the front brake feel a bit wooden.
Does anybody know the size of the piston in the front brake master cylinder? Or a replacement master cylinder that will give a better feel?
How about the size of the pistons in the front calipers?
Are there any aftermarket disc rotors?
Thanks
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Post by Norbo on Sept 5, 2012 7:48:42 GMT 1
Replacement caliper pistons and seals are £20 a side you need 2 per caliper and a mas cyl rep kit is £17 so that will sort it all out .
However you can fit R1/R6 disksthey will bolt right on and a set of 4 pot calipers and make a bracket to make them match up to the disk.
and Welcome to the forum .
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Post by rich on Sept 5, 2012 16:58:26 GMT 1
The standard master cylinder piston is 5/8 inch (15.87 mm). Might be worth trying a master cylinder with a 14mm piston off a modern sports bike (R1 etc). There will be a bit more travel at the lever so you'll need braided hoses but I assume you'll be running them already. Should have more power though. Might also be worth trying different pads?
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Post by bare on Sept 7, 2012 3:26:21 GMT 1
Fit the Master cyl from an LC 250. Yes!! Miraculous 'feel' improvement, seriously recommended. Perfect size, easy to buy and even looks the part
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