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The engine is a Robin Subaru 33cc, 1.6 hp, 4 stroke ICE. It weighs 8 lbs, is extremely quiet and is both EPA and CARB II certified compliant. The CVT or constant velocity transmission, will act as intermediary drive train gearing offering an extremely wide range of gear ratios.
The bike is a 1983 Diamond Back Ridge Runner with chromoly, lugged frame. The old Centurion Diamond Backs were right there at the front of the production mountain bike trend, making the transition from the fat tire, modified cruisers that Joe Breeze, Charlie Kelly and Gary Fisher were bombing off of Mt Tam with.
My goal is to end up with a lightweight and versatile commuter, being able to pedal, motor or do both together or independent of each other. Taking advantage of a wide range of gearing afforded by the CVT it should be capable of maintaining cruising speeds from a slow walking pace to that approaching urban traffic speeds, be able to climb hills effortlessly and offer fuel efficency somewhere around 200 to 250 mpg and a range of 75 miles before refueling.
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