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Gasoline Fumes · 10-21-2009, 12:59 PM

One of the reasons I might not build a trike is the difficulty of finding a suitable transmission. With a max RPM of 2000, it's going to need multiple gears to acheive a respectable cruising speed and still be able to accelerate. I have a 3-speed lawnmower gearbox that would be OK, but it's designed for a vertical shaft engine and is grease-lubed. My other concern is MPG. I'd hate to go through the trouble of building something and then find out it gets only 61 MPG and has a top speed of 34 MPH. It would have to get about 100 MPG and go 50 MPH for me to build it.

10-21-2009, 12:59 PM	#7 (permalink)
Gasoline Fumes Custom User Title Join Date: Oct 2009 Location: New York State Posts: 276 Nut Wagon - '91 Civic Wagon DX Team Honda 90 day: 39.96 mpg (US) Thanks: 35 Thanked 38 Times in 23 Posts	One of the reasons I might not build a trike is the difficulty of finding a suitable transmission. With a max RPM of 2000, it's going to need multiple gears to acheive a respectable cruising speed and still be able to accelerate. I have a 3-speed lawnmower gearbox that would be OK, but it's designed for a vertical shaft engine and is grease-lubed. My other concern is MPG. I'd hate to go through the trouble of building something and then find out it gets only 61 MPG and has a top speed of 34 MPH. It would have to get about 100 MPG and go 50 MPH for me to build it.