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dozerash

Air Cooled Mono Build

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I’m thinking of building a air cooled mono. I have an extra rebuildable Rotax 280 trials engine and exhaust. Just need a mono chassis. Any recommendations? 

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Old Beta TR34 chassis, or JCM's chassis would be a good starter.

JCMs , you can't give away at the moment, if you can find one, so a good cheap option. If not what about a TY mono chassis, loads around and possibly easy modded!

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4 minutes ago, dozerash said:

I wonder how much different my engine mounts compared to a Aprillia Climber? 

Bottom half the same, no problem. Climbers engines can be converted to air cooled.

Edited by b40rt
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27 minutes ago, b40rt said:

Bottom half the same, no problem. Climbers engines can be converted to air cooled.

Thanks! That’s good to know! I had a early nineties 280 Climber and remember the bottom end was similar. 
 

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On 11/29/2020 at 2:02 PM, jonboy883 said:

Old Beta TR34 chassis, or JCM's chassis would be a good starter.

JCMs , you can't give away at the moment, if you can find one, so a good cheap option. If not what about a TY mono chassis, loads around and possibly easy modded!

I’m from the States, I’ve never heard of JCM?

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It's a French make, only for a couple of years, never really took off, and not overly popular. Nice looking and good spec, avoided now as too limited to get spares etc.

https://www.classictrialsgb.co.uk/jcm

https://www.pressreader.com/uk/classic-trial/20151201/281681138803178

dont use the Aprilia frame, that would just be a rebuild with another engine. Make a mono special, something individual and unique!

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