[400ex rear master cylinder on a 250r] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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400ex rear master cylinder on a 250r
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Posted by: trey

Will a 400ex rear master cylinder bolt on to a 250r frame? My 250r cylinder is beyond rebuildable (aluminum cracked, and major corrosion)

thanks

Posted by: toby400ex

Ive heard of people using a 250r caliper on a 400ex, but im not sure about the other way around. I think you need an expensive adaptor. Just look on ebay for a used caliper

Posted by: trey

i dont need the caliper i just need a new master cylinder

Posted by: RiPPiNiTuP7

http://cgi.ebay.com/ebaymotors/ws/e...item=2417066686

Posted by: trey

thanks ive been watching that auction. i was wondering if a 400ex cylinder would work because they are cheaper and brand new.

Posted by: TRXR29

You <i>can</i> make one fit, but it will not just bolt on. I used a 400EX brake pedal and master cylinder both, just to make it tuck in closer to the frame. I had to change a mount on the frame and modify the brake pedal. Also, the 250R reservoir uses a different size hose than the EX master cylinder. It took some rigging, but I made it work pretty well. I'll try to get a pic soon if you want. For most people, though, it's easier to just buy a 250R master cylinder.

Posted by: trey

thanks for the offer------ i believe i found a 250r cylinder