what a monster!!!

Z.hb71

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200cc roost havoc twin :devilish::love::love::love::love: thing is probably scary fast on a drag scooter. i definitely want one of roost havoc's 70cc cylinders if/whever i replace the athena!! rated for 30hp. would need a radiator (cuz its an water-cooled cyl) but thats not that big of an issue.
 
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1Coopgt

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That engine needs some tuning and an Airbox. Did you noticed the gas vapor when on the throttle, an airbox would help that . Z you want to be impressed. Here you go, Honda NSR 500 some say it had 200 hp out of the 500cc 2smoke . I loved watching these bad boys race . Complete animals.
 

Z.hb71

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Build Thread Contributor
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9,495
Location
Illinois
That engine needs some tuning and an Airbox. Did you noticed the gas vapor when on the throttle, an airbox would help that . Z you want to be impressed. Here you go Honda NSR 500 some say it had 200 hp out of the 500cc 2smoke . I loved watching these bad boys race . Complete animals.
The guy said it was still being tested and tweeked, not finalized. That ns500 is a beast 😍 such a snappy throttle response πŸ‘
 
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