These is the latest project that I have been working on. Its a dual power, gas and electric hybrid built on a Haro 540 Air.
The rear motor is a 23cc Goped Geosport (Zenoah) motor. The motor is mounted in the same fashion as the Goped. On a hinge that drops down onto the rear tire and drives it on a friction roller. The friction roller had to be custom made for the drive ratio that I needed. The motor itself has been worked over and starts on the first pull, everytime. Controls for the motor (ie clutch, gas, kill) have all been lifted off the Goped too. From what Ive read, this motor is supposed to be the cleanest people-moving motor in the world. Take that with a grain of salt though.
The front wheel is a 600w Wilderness brushed hub-type motor. The three SLA 12 volters are mounted to a rack welded onto the top tube of the bike. The batteries put the bike's total weight in at a hefty 80 lbs. Plans are in the works for a much lighter LifePo or Nimh swap out. The reason for going with the SLAs was to keep the build cost down while I developed the rest of the bike.
Here is how it works. I pull out from stop running the electric. Once to 15-20 mph, I drop the motor and cruise. The dual motor set up makes for some unique handling characteristics especially around turns. I come into high speed turns on gas till I hit the apex of the turn then I roll on the electric to bring me out. It allows much sharper turns than on the other two ht bikes that I have.
Here are the stats:
Top speed is around 35 mph (keep in mind, Im 6'-3" and 215 lbs)
The range on the electric motor is about 40 miles depending on use.
The gas milage is an unebellished 120 mpg.
Can climb most commonly found grades at 20 mph (Swisse Alps may be a challenge though)
Small enough to be thrown in the trunk of a car
The bike is a hoot to ride. I live in the middle of nowhere about 8 miles from town. I ride to town cruising on gas, with occasional help from electric. Once in town, I cut the gas (kill is the red button on the end of the handlebars) I can run around town in the stealth of an electric motor while not offending the townsfolk with the sounds of a rabid chain saw.
Ryan
The rear motor is a 23cc Goped Geosport (Zenoah) motor. The motor is mounted in the same fashion as the Goped. On a hinge that drops down onto the rear tire and drives it on a friction roller. The friction roller had to be custom made for the drive ratio that I needed. The motor itself has been worked over and starts on the first pull, everytime. Controls for the motor (ie clutch, gas, kill) have all been lifted off the Goped too. From what Ive read, this motor is supposed to be the cleanest people-moving motor in the world. Take that with a grain of salt though.
The front wheel is a 600w Wilderness brushed hub-type motor. The three SLA 12 volters are mounted to a rack welded onto the top tube of the bike. The batteries put the bike's total weight in at a hefty 80 lbs. Plans are in the works for a much lighter LifePo or Nimh swap out. The reason for going with the SLAs was to keep the build cost down while I developed the rest of the bike.
Here is how it works. I pull out from stop running the electric. Once to 15-20 mph, I drop the motor and cruise. The dual motor set up makes for some unique handling characteristics especially around turns. I come into high speed turns on gas till I hit the apex of the turn then I roll on the electric to bring me out. It allows much sharper turns than on the other two ht bikes that I have.
Here are the stats:
Top speed is around 35 mph (keep in mind, Im 6'-3" and 215 lbs)
The range on the electric motor is about 40 miles depending on use.
The gas milage is an unebellished 120 mpg.
Can climb most commonly found grades at 20 mph (Swisse Alps may be a challenge though)
Small enough to be thrown in the trunk of a car
The bike is a hoot to ride. I live in the middle of nowhere about 8 miles from town. I ride to town cruising on gas, with occasional help from electric. Once in town, I cut the gas (kill is the red button on the end of the handlebars) I can run around town in the stealth of an electric motor while not offending the townsfolk with the sounds of a rabid chain saw.
Ryan