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Workshop => Body and Controls => Topic started by: dirtyd on March 08, 2014, 10:59:35 AM

Title: 450r rear master cylinder ?
Post by: dirtyd on March 08, 2014, 10:59:35 AM

I need a rear master cylinder and the 450R ones seem to go for less. Plus being newer less chance of needing a rebuild. Anyways whats all needed to use on the 250R? I know I need to swap out the rod or extend the 450r one. Can I just swap out the master cylinder or do I need to use the resivoir cup/hose and the brake line to the caliper for the 450r? Or will the 250r parts attach to the 450r master? Just wondering when i purchase if I should look for just the master or one that comes with all the lines.

Title: pics
Post by: trx250scar on March 08, 2014, 11:31:23 AM

I have a 450 rear mc. All the 250 lines and reservoir hook up. I used a metric rod couple and a metric ending stud to extend mine. Worked fine.(http://forums.trx250r.org/vbulletin_imports/42_1136_2017-04-18_8255.jpg)

Title: 450r rear master cylinder ?
Post by: trx250scar on March 08, 2014, 11:32:29 AM

I was able to buy this stuff pretty cheap from my local ace hardware

Title: 450r rear master cylinder ?
Post by: nico on March 08, 2014, 03:30:24 PM

I used a 450R m/c on my 88 trail bike.  I just attached the 250R lines, and reused the pushrod from the 250R unit. No big deal, just remove the snap ring and swap parts.

Title: 450r rear master cylinder ?
Post by: dirtyd on March 08, 2014, 03:43:37 PM

thanks guys

Title: 450r rear master cylinder ?
Post by: mx250r91 on March 09, 2014, 12:09:15 PM

Thumbs up on the 450R master cylinder, works great!

(http://i97.photobucket.com/albums/l209/mx91a/2012%20XC%20250R%20Build/bad125c1.jpg)