Author Topic: 450r rear master cylinder ? (Read 3065 times)

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.

trx250scar · « **Reply #1 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.

trx250scar · « **Reply #2 on:** March 08, 2014, 11:32:29 AM »

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

nico · « **Reply #3 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.

dirtyd · « **Reply #4 on:** March 08, 2014, 03:43:37 PM »

thanks guys

mx250r91 · « **Reply #5 on:** March 09, 2014, 12:09:15 PM »

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