ZnsaneRyder
Member
- Local time
- 6:07 AM
- Joined
- Jun 19, 2008
- Messages
- 805
I'm in the process of designing and building a new motored bike.
I want better fuel mileage over 150MPG, and also good low-end torque, and an inexpensive and easy to get engine. I just discovered Harbor Freight has a 2.5HP 79cc 4 stroke, and picked one up. (79 real cc's and bigger than a 2 stroke 80cc)
Engine: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=97964
I'm putting the engine over the rear tire rack mounted.
It will have a jackshaft and two #40 chains to get the proper reduction.
An issue I'm having is how to get the power to the wheel with a sprocket. I want it to take #40 chain. I don't trust spoked wheels to handle the speed and power, and want to get plastic tuff-wheels, but they don't come in sizes over 24". I see a lot of folks here with chain-driven rack mount setups. What would you recommend?
I want better fuel mileage over 150MPG, and also good low-end torque, and an inexpensive and easy to get engine. I just discovered Harbor Freight has a 2.5HP 79cc 4 stroke, and picked one up. (79 real cc's and bigger than a 2 stroke 80cc)
Engine: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=97964
I'm putting the engine over the rear tire rack mounted.
It will have a jackshaft and two #40 chains to get the proper reduction.
An issue I'm having is how to get the power to the wheel with a sprocket. I want it to take #40 chain. I don't trust spoked wheels to handle the speed and power, and want to get plastic tuff-wheels, but they don't come in sizes over 24". I see a lot of folks here with chain-driven rack mount setups. What would you recommend?