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80'cr 250 with 480 motor

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Posted by: ruling the roost

would that set up be legal for vintage racing i beleive thats evo 2 no link rear drum brake air cooled any thoughts have acess to both


Posted by: Tahitian_Red

By the letter of the AHRMA rules it is probably ok. In the spirit of Vintage/Evo racing it's probably not nice, but who said competition has to be nice?


Posted by: TVRider

The 83 CR480 is by AHRMA rules an "Ultima" class bike. The 80 CR250 is a "GP" class bike. Technically, you can't take major parts from a higher class bike and use them on a lower class bike. Your CR250 would be considered an open class "Ultima" bike after the switch.

Tom


Posted by: TVRider

BTW, if you really want to rule the roost, buy a 78 or 79 Maico roller and put an Maico 490 reed valve motor in it. Next install the front end off an 81 with 43 mm forks (after Maico Only shortens the travel to keep the sweet late 70's steering geometry), add an 81 swingarm (longer for more stability and to keep the front wheel on the ground sometimes) and you'll have what Eric Cook at Maico Only calls the 50 HP Moped! Close to the size of a 125 with the power of an open classer!


Posted by: ruling the roost

i contacted ahrma and they said no go cause 480 came of link equiped bike to me thats not right if i got a 360 kit or maybe marty smith's 78 500cr i could race but other wise not guess i'll have to find a 81 yz 465 any body in pa. got one?


Posted by: DEANSFASTWAY

Rodney Miller the Moto lift guy has a sano YZ465 I saw it in the back of his van last week .Hes in PA, Check out www.GoodStuff racing.com and you could contact him there. NOTE THIS IS NOT A SPAM FOR ML/GSR.


Posted by: redrocket190

Quote:
Originally Posted by TVRider
The 83 CR480 is by AHRMA rules an "Ultima" class bike. The 80 CR250 is a "GP" class bike. Technically, you can't take major parts from a higher class bike and use them on a lower class bike. Your CR250 would be considered an open class "Ultima" bike after the switch.

Tom


...except OEM and after-market forks which can be from the Ultima time period (12.e)


Posted by: redrocket190

You would have to be a real Honda nut to do this before picking up a YZ465H...



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