1989 RM250 Front Brake Upgrade

RussB
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Edited Date/Time 5/25/2017 3:23am
Bit of a long shot but I'm struggling with the stock front brake on my 1989 Suzuki RM250.

The whole system is fairly worn but in working condition, but in terms of power it is very weak. Even with new pads, disc, master cylinder rebuild, fresh fluid and lots of bleeding.

I'm thinking of getting a modern master cylinder and then replacing the hose with one from an early 2000's era RM.
I wont be able to use a modern brake hose on this bike due to the fork guard design and the need for the hose to wrap underneath the lower fork lug.

Has anyone ever mounted a modern caliper to this bike? I would love to fit an OS 270mm rotor to it but doubt anything will fit?

Any advice would be awesome!
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Falcon
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5/23/2017 11:58am
Get a braided steel line. That alone will work wonders for you.

I remember the hot setup in those days was to get a Honda master cylinder; everybody swore by them back then.
FahQ
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5/23/2017 7:04pm
I put a braking oversize rotor kit on my '90 RM250, it was for a '93 RM125.
RussB
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5/23/2017 11:55pm
Thanks for the responses guys!

Good shout on the CRF master cylinder, read of a lot of people using them, even on the modern bikes as they are said to be the best Nissin master cylinder.

Awesome news on the oversize kit! I will start searching around and see if I can get hold of one.
FahQ
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5/24/2017 12:23pm


Took a pic for you!

The Shop

RussB
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5/25/2017 3:23am
Nice one thanks for that FahQ
Looks really good!

I emailed Talon UK who are the Braking distributor for the UK. They only have a disc in stock and not the adapter. I think I'm going to struggle to track one down but will keep searching, hopefully one pops up some day.

Where did you get your OS kit from? Is it a 260 or 270mm rotor?

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