1978 RM250 C2

MXVet261
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MXVet261
Edited Date/Time 1/27/2012 6:11am
Picked up this nice C2 about a year ago and never did anything with it. Decided to race GP class for 2010 and did a quick racer build on it. Taking it down to FLA for Gatorback in a few weeks.

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Original 44
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Chardon, OH US
Original 44 2/4/2010 8:48pm
2/4/2010 8:48pm
WOW ! ! That didn't take long. Looks nice John. It was good seeing you over at Dave's.
Sawblade
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Bentonville, AR US
Sawblade 2/4/2010 10:02pm
2/4/2010 10:02pm
Old school DG tank decals! Very cool.
captmoto
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Rancho Cucamonga, CA US
captmoto 2/4/2010 10:50pm
2/4/2010 10:50pm
Cool, that one is on my list. That was my first real race bike. I did the works shocks on it back then with an in house (Suzuki West) fork job. I sure wished I kept all my bikes from back the.
AHRMA361 2/5/2010 11:03am
2/5/2010 11:03am
Now I want it to match up with my RM125C!!!

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CamP
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Colleyville, TX US
CamP 2/5/2010 11:19am
2/5/2010 11:19am
The C2 RM's are sweet.
oldschoolmxr203 2/5/2010 4:13pm
2/5/2010 4:13pm
i had a 78 RM 250 C,
that has to be a different gas tank, because mine came with an aluminum gas tank, if you go my profile theres pic of it the one with the fox air shocks.
i also had a 79 RM 250 and it came with a plastic gas tank.
bike looks really good, good job
drmarkr
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drmarkr 2/5/2010 4:17pm
2/5/2010 4:17pm
oldschoolmxr203 wrote:
i had a 78 RM 250 C, that has to be a different gas tank, because mine came with an aluminum gas tank, if you go...
i had a 78 RM 250 C,
that has to be a different gas tank, because mine came with an aluminum gas tank, if you go my profile theres pic of it the one with the fox air shocks.
i also had a 79 RM 250 and it came with a plastic gas tank.
bike looks really good, good job
'78 C2 had the plastic tank....mid year model change....kind of a 78 and a half.
oldschoolmxr203 2/5/2010 4:46pm
2/5/2010 4:46pm

i put duct tape on the tank to keep my knees from rubbing away the paint
MXVet261
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MXVet261 2/5/2010 6:36pm
2/5/2010 6:36pm
Right, the C2 is different than the C. As stated above also commonly referred to as a "1978 1/2" model.
jimmie
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jimmie 2/6/2010 6:22am
2/6/2010 6:22am Edited Date/Time 4/17/2016 8:36pm
I had both. 78 & 78 1/2
tank change, from aluminum to plastic
swingarm, from steel (chromoly) to "sloppy" aluminum
new "rubber" mounted handlebars
new full floating rear brake
and a dozen minor internal changes to forks, shocks and motor (5 more horses)
Great bikes for sure. The major problem I seem to of had was frame breaking at the bottom of the" front down tube" / "bottom frame rails". Loose motor mount bolts maybe?
xnationalwrench 2/6/2010 6:54am
2/6/2010 6:54am Edited Date/Time 2/6/2010 6:55am
When I prepped a C2 I had Thor Racing weld a gusset underneath the down tube and tied in the frame rails, and used one of his swingarms along with Works Performance Shocks. I did use Simons forks on it also.
1
tydog
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tydog 2/6/2010 7:02am
2/6/2010 7:02am
xnationalwrench wrote:
When I prepped a C2 I had Thor Racing weld a gusset underneath the down tube and tied in the frame rails, and used one of...
When I prepped a C2 I had Thor Racing weld a gusset underneath the down tube and tied in the frame rails, and used one of his swingarms along with Works Performance Shocks. I did use Simons forks on it also.
Who were you wrenching / working for in that era, if you do not mind my asking?
I assume in your post that this area with the gussets is right below the front motor mount?
tydog
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tydog 2/6/2010 7:03am
2/6/2010 7:03am
Awesome looking ride Pitracer. It looks like you have a pretty good stable of Suzukis.
jimmie
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jimmie 2/6/2010 7:26am
2/6/2010 7:26am
xnationalwrench wrote:
When I prepped a C2 I had Thor Racing weld a gusset underneath the down tube and tied in the frame rails, and used one of...
When I prepped a C2 I had Thor Racing weld a gusset underneath the down tube and tied in the frame rails, and used one of his swingarms along with Works Performance Shocks. I did use Simons forks on it also.
I did the same thing to my bikes, to fix the frame problem.
Used a triangle shape piece of 1/8'" sheet metal to tie the three frame members together.
Added weight but never a problem after that fix.
1
xnationalwrench 2/6/2010 10:16am
2/6/2010 10:16am
xnationalwrench wrote:
When I prepped a C2 I had Thor Racing weld a gusset underneath the down tube and tied in the frame rails, and used one of...
When I prepped a C2 I had Thor Racing weld a gusset underneath the down tube and tied in the frame rails, and used one of his swingarms along with Works Performance Shocks. I did use Simons forks on it also.
tydog wrote:
Who were you wrenching / working for in that era, if you do not mind my asking? I assume in your post that this area with...
Who were you wrenching / working for in that era, if you do not mind my asking?
I assume in your post that this area with the gussets is right below the front motor mount?
in '78 I worked for Cross Up turning wrenches for Marty Miller and then Steve Ryhan. When Cross up had some money problems I was hired by Steve Ryhan for 1979 National and CMC races.
1
tydog
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tydog 2/6/2010 1:06pm
2/6/2010 1:06pm
xnationalwrench wrote:
in '78 I worked for Cross Up turning wrenches for Marty Miller and then Steve Ryhan. When Cross up had some money problems I was hired...
in '78 I worked for Cross Up turning wrenches for Marty Miller and then Steve Ryhan. When Cross up had some money problems I was hired by Steve Ryhan for 1979 National and CMC races.
10-4, thanks for the reply. Funny that you should mention Cross Up; I just picked up a Cross Up swingarm for my 76 370. I really wanted a Thor but I stumbled on to this one.

1
Law 131
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Law 131 2/7/2010 5:28am
2/7/2010 5:28am
That was one of the best bikes made. I would set mine up with Simons, Fox Air and and aluminum swing arm. I ran the motor box stock but would replace the jug, crank and mains every third race.

Sweet ride!
mx900
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mx900 7/11/2019 5:00am
7/11/2019 5:00am
What are the stock forks on the C2?

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