Actual race motocross bikes as road going SMs

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cheb
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Re: Actual race motocross bikes as road going SMs

Post by cheb »

Much easier to convert now to a proper road going bike, LED lights and lithium batteries, bicycle speedo or GPS, and no 2T oil to carry.
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Re: Actual race motocross bikes as road going SMs

Post by Le_Fromage_Grande »

Depends what you want, if you're going to only ride it for 20 minutes and can live with the maintenance I think they're great.
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KungFooBob
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Re: Actual race motocross bikes as road going SMs

Post by KungFooBob »

I'd like to say a fourbanger would be more reliable than a smoker, but I've a sneaky feeling that although you'd have to rebuild a 2t twice as often it would be a lot cheaper to do so.
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Re: Actual race motocross bikes as road going SMs

Post by Jody »

The suspension will be way too soft.

You won't have a stand, so always need to find a wall.

No ignition used to freak me out.
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Yorick
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Re: Actual race motocross bikes as road going SMs

Post by Yorick »

KungFooBob wrote: Thu Jan 11, 2024 7:55 am I'd like to say a fourbanger would be more reliable than a smoker, but I've a sneaky feeling that although you'd have to rebuild a 2t twice as often it would be a lot cheaper to do so.
We all have 2 stroke enduro bikes and never had any engine problems.
We all use Motul 2 stroke oil.
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Re: Actual race motocross bikes as road going SMs

Post by Le_Fromage_Grande »

Yorick wrote: Thu Jan 11, 2024 9:41 am
KungFooBob wrote: Thu Jan 11, 2024 7:55 am I'd like to say a fourbanger would be more reliable than a smoker, but I've a sneaky feeling that although you'd have to rebuild a 2t twice as often it would be a lot cheaper to do so.
We all have 2 stroke enduro bikes and never had any engine problems.
We all use Motul 2 stroke oil.
That's because you don't ride it fast enough to do any engine wear. :D

A bit more seriously, both 2 stroke and 4 stroke mx bikes need regular top end rebuilds, how often is defined by the manufacturer, a 4 stroke top end rebuild costs a lot more than a 2 stroke one as you need a cam chain in addition to the gaskets, piston and rings, but cam chains aren't as expensive as a piston and rings. Supermotos need more maintenance than MX bikes because they're flat out a lot more, they're harder on valves but the cam chain usually has an easier time in a supermoto as the engine speed is more constant.
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Re: Actual race motocross bikes as road going SMs

Post by Le_Fromage_Grande »

With a 450 supermoto on the road you'll be flat out a lot, it's why the engines don't last, the only MX bike I had that I could ride anywhere near it's limits was a YZ125, with a 250 I felt like I was tootling round in the mid range.
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Re: Actual race motocross bikes as road going SMs

Post by formula400 »

Potter wrote: Thu Jan 11, 2024 6:32 am What do you think?
Do proper competition motocross bikes make good supermoto bikes on the road?

A quick google throws up something like this - https://www.ebay.co.uk/itm/134880435987 ... p_homepage

It might then also be a good base for a GP45 style bike?


My CRF 450 was wicked, I bought it off Lawman for the place before here. I road reg'd it, bought all wheels and bit and watched my uncle fit most of it, took it to some place in Southampton to have a lighting kit fitted, was wank but did the job, rode it loads, loved it, took it from SW20 to Stonehenge and back in 1 day, it shit its self at Tolworth on the way home.

it was rough but loads of fun.
CBR650r :mrgreen:
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Re: Actual race motocross bikes as road going SMs

Post by ZRX61 »

Buddy has a "road legal" Honda CR500 stroker... It hasn't been motarded & still runs pukka MX tires etc.
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Re: Actual race motocross bikes as road going SMs

Post by KungFooBob »

ZRX61 wrote: Tue Jan 16, 2024 9:29 pm Buddy has a "road legal" Honda CR500 stroker... It hasn't been motarded & still runs pukka MX tires etc.
I had a lowly Kawasaki 220R on non-road legal MX tyres, it was fucking hilarious on the road when it was wet. I imagine a 500 is like that in the dry!
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Re: Actual race motocross bikes as road going SMs

Post by Yorick »

We rarely go on the road, but there's a couple of twisty road climbs we need to go up/down occasionally.
The lads are better than me enduro, but I clear off on the tarmac bits.
Can feel the front tyre really squirming and great fun, but takes the edges off the tyre.
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Re: Actual race motocross bikes as road going SMs

Post by Pirahna »

Back in the VD days someone had a CR500 motard, I'd like to say it was Whysub but I really can't remember. I did meet a few of motard people at the White Hart in Puckeridge, the CR500 was there.