gas/elec 3speed motorbike w/ pics

[ne2rk]

This is my first ride-able gas/elec motorbike. Its 24volt vs. 47cc 2stroke. not hybrid yet...

[Dave31]

Very cool ne2rk, I like it

[Goat Herder]

Did you make that frame? I have never seen one like that before.

[ne2rk]

Originally Posted by Goat Herder

Did you make that frame? I have never seen one like that before.

Its a old school 3 speed grandma bicycle. It had sweeped handlebars. I cut the seat stay's. I bent the frame's top tube and bent it down, then bent top tube again. and clamped the built in seat clamp back to the seat pole. I owned this bicycle for over 7 years. As one of my many pedal choppers. This bike seemed best fit for my gas/elec beacuse of the 3speed hub. The motor is a 47-49cc raw china slant jug 2stroke. and electric motor is a scooter 240watt 24volt dc motor. chain drivin.

I only rode it one time with the gas motor's chain link snaping twice from rubbin on the frame. need to install a chain tensor. Wish i had a better frame then this. but its fun being that low and under the fender. It has a springer seat. This bike looks cool if you ask me. looks old. rides strait as a arrow. tires hold over 80psi.

only problem is when the battery's go dead i can't get the gas motor started. no pedals....yet...

This bike will be 100percent in the next few weeks. I can't wait.

[Goat Herder]

Very cool. That's a whole new approach to me. Keep us posted!

[gareth5000]

Any progress? I'm interested in this project.

[wheelbender6]

The simplest gas/electric hybrids use the electric motor only during acceleration. Lexus makes a hybrid SUV that uses that concept to get highway gas mileage in the city. You get better gas mileage, can use smaller batteries and it's mechanically far simpler (and cheaper) than a full hybrid (Prius).

[gareth5000]

It would be good to use the electric around the neighbourhood so no one notices you, then fire up the piston engine when you need it.

[ne2rk]

Originally Posted by gareth5000

It would be good to use the electric around the neighbourhood so no one notices you, then fire up the piston engine when you need it.

Ive rode it for first time today. I used the electric in 1st gear to get it going around 5mph and pop the clutch to start the gas on choke. roll till down my street till it warmed up. remove choke and engage the clutch lever and give it gas. get it going to around 25mph, then kill gas and lock the clutch lever. pop it in 2nd or 3rd aka overdrive. and fly down the street, silent as the chain allows me to be. I only have 4 12volt 7amp hour battery's at 24volt. So electric isn't the best. till i figure out how to make it regenerative power.

Im thinking ill make it a dresser. Saddlebags from old leather laptop bags from thift store. Those can store the battery's. and a 1 1/8th bicycle stem and bull horn 10speed handle bars for foot pegs. Picture soon...

[gareth5000]

Oops, posted the same thing twice.