Thread: Top Speed
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Old 09-07-2011, 10:22 PM
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SlowBalt SlowBalt is offline
Motorized Bicycle Elite Member
Join Date: Mar 2010
Location: Rhode Island
Posts: 759
Default Re: Top Speed

I hate to even get involved. But I've built and sold over a dozen bikes. I've bought every kit out their. And i can honestly say the z -80 is the only engine kit i will ever buy again. This kit comes with a 41 tooth sprocket. On a Delmar frame stock muffler. 37mph on my tomtom gps.
I'm currently running a 36 tooth my cafe build. Stock NT carb pocket bike pipe set to hit at top end. This bike runs out of revs at 45 mph but still climbs up heavy grades at 25mph. If you know Providence RI I'm talking bought collage hill. The x-80 and z-80 kits from boy go fast are actually 68cc high compression engines. I tried a head from a pk-80 and also the manic head . The engine lost compression with both. sorry bought the semi incoherent rant It's past my bedtime. Any way this is all on un moded engines. But with port matching and a few tricks the z-80 is the beast of bike engines in my experience.
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