2008 Rm 250 complete rebuild with polisport

Plumbusguy
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Plumbusguy
Edited Date/Time 4/22/2025 9:59pm

Found a 2008 Rm 250, wanted to do a full rebuild.
It's almost complete now, but I've taken it down to the frame powder coated black. Soda blated then entire engine and all the bolts. Complete engine rebuild, replaced every bearing and seal, wiseco engine rebuild. Got the clutch side cerakoted bronze, Hinson clutch setup and cover. 8oz stealthy fly wheel weigh, lectern carb, boysend rad valve and ignition cover, custom dubya rims, gallery wave rotors, and metal break lines, also got the calipers cerakoted too. Custom suspension done by sgb racing DO NOT DEAL WITH THEM, also hes under JWB performance now, DO NOT DEAL WITH, Renthal bars chain and sprockets. Hydrodipped frame guards. Light speed chain guide and rear break guard. 
Also yes I've got two 08 Rm 250s
 

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Plumbusguy
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Plumbusguy 7/27/2019 7:20pm
7/27/2019 7:20pm
Here's a bunch of updates, it's taken me about 7 months to get everything to this point
Waiting on a few more things. Hopefully ready for Unadilla 2019


























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Plumbusguy
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Plumbusguy 7/27/2019 7:24pm
7/27/2019 7:24pm Edited Date/Time 4/22/2025 9:58pm

Here's the most updated photos
I get the sgb racing suspension DO NOT DEAL WITH THEM, also hes under JWB performance now, DO NOT DEAL WITH


 

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LOOnatic
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LOOnatic 7/27/2019 8:35pm
7/27/2019 8:35pm
Hella sweet dude!
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Headling
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Headling 7/29/2019 3:55am
7/29/2019 3:55am
Looks great! Cracking build
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Plumbusguy
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Plumbusguy 7/30/2019 11:07am
7/30/2019 11:07am
Got some more updates coming














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Plumbusguy
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Plumbusguy 7/30/2019 8:28pm
7/30/2019 8:28pm
Here's the finished product
See you guy's at unadilla




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DTHA70
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DTHA70 8/1/2019 2:06pm
8/1/2019 2:06pm
did you get 450 outer fork tubes? the stock RM ones used that plastic guide/clamp thing and these have a metal wear ring like the 450 forks.
chewy4063
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chewy4063 8/1/2019 2:53pm
8/1/2019 2:53pm
Awesome build
Plumbusguy
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Plumbusguy 8/1/2019 3:00pm
8/1/2019 3:00pm Edited Date/Time 4/22/2025 10:00pm
DTHA70 wrote:
did you get 450 outer fork tubes? the stock RM ones used that plastic guide/clamp thing and these have a metal wear ring like the 450...
did you get 450 outer fork tubes? the stock RM ones used that plastic guide/clamp thing and these have a metal wear ring like the 450 forks.

Stock forks
 

Plumbusguy
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Plumbusguy 8/1/2019 8:11pm
8/1/2019 8:11pm
Kleinmotorsports wrote:
What brake tip is that?
Custom job
Hammerhead titanium til
Kleinmotorsports 8/1/2019 9:47pm
8/1/2019 9:47pm
Can you buy just that brake tip? I would like to do the same.
Cancerman
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Cancerman 8/1/2019 10:23pm
8/1/2019 10:23pm
Love your dogs. I have an Aussie.
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Plumbusguy
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Plumbusguy 8/2/2019 5:18am
8/2/2019 5:18am
Kleinmotorsports wrote:
Can you buy just that brake tip? I would like to do the same.
Yes you can just but it
Grind out the stock pins then thread the holes
kwenske321
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kwenske321 8/7/2019 12:36am
8/7/2019 12:36am
Kleinmotorsports wrote:
Can you buy just that brake tip? I would like to do the same.
Plumbusguy wrote:
Yes you can just but it
Grind out the stock pins then thread the holes
How do you like the Boyesen/Lectron setup?
Plumbusguy
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Plumbusguy 8/7/2019 8:59am
8/7/2019 8:59am
Kleinmotorsports wrote:
Can you buy just that brake tip? I would like to do the same.
Plumbusguy wrote:
Yes you can just but it
Grind out the stock pins then thread the holes
kwenske321 wrote:
How do you like the Boyesen/Lectron setup?
Love it!
Have it on both my bikes
kyle-vick
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kyle-vick 8/12/2019 10:42am
8/12/2019 10:42am
How do you like the Polisport plastic vs the aluminum tank and RMZ shrouds? I was contemplating going with the Polisport stuff instead. I am not sure if I like how the aluminum tank fits/feels compared to the original tank. It may grow on me though.
Plumbusguy
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Plumbusguy 8/20/2019 7:34pm
8/20/2019 7:34pm
kyle-vick wrote:
How do you like the Polisport plastic vs the aluminum tank and RMZ shrouds? I was contemplating going with the Polisport stuff instead. I am not...
How do you like the Polisport plastic vs the aluminum tank and RMZ shrouds? I was contemplating going with the Polisport stuff instead. I am not sure if I like how the aluminum tank fits/feels compared to the original tank. It may grow on me though.
Riding wise no difference
The aluminum tank is finicky to get on due to being hand made, shrouds are weird too. Also they leave a space between them and the tank, I just put some sticky foam and problem solved

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