Vecken
New Member
- Local time
- 7:53 PM
- Joined
- Nov 15, 2011
- Messages
- 4
I was just doing some research on some other motorized bikes and that inspired me to build my own. it is still in progress and maybe you guys can give me some input on what i can do with the drive train.
I have a list of sprockets i already have from junk bikes that i can use. for the rear end i have 2 speed 48t/38t off a front crankset that will be going on the opposite side of the wheel, but im trying to find the best way to mount it solid with enough clearance between the spokes and chain stay.
A rear hub cassette that ranges from 14t and 28t. and a coaster sprocket 16T. im aiming for maybe a 18 to 24:1 ratio as i want to be able to get a good speed on slight inclines.
so here she is: http://i.imgur.com/Yj7YX.jpg
Its a gary fisher tarpon 5 series frame i got in a trade, cromoly steel frame. im using a rear 7 speed wheel off an old trek.
The engine is from a Husqvarna 350, 52CC that puts out almost 3.2HP. the housing partially melted from the exhaust so its useless as a chainsaw. its only 8lbs and has a small enough profile the crank arms can pass right by it.
Im mounting the engine backwards because i want to have a gear attached to the clutch to do the gear ratio for me and greatly increase reliability, but need to figure out how im going to attach it, and then have another sprocket going from that to the rear wheel. has anyone done something similar to this before?
I'd really appreciate some comments or suggestions. thanks!
ps. im in maine and if there is anyone nearby with a mig welder that can do just a couple of spot welds that would make this project much easier.
I have a list of sprockets i already have from junk bikes that i can use. for the rear end i have 2 speed 48t/38t off a front crankset that will be going on the opposite side of the wheel, but im trying to find the best way to mount it solid with enough clearance between the spokes and chain stay.
A rear hub cassette that ranges from 14t and 28t. and a coaster sprocket 16T. im aiming for maybe a 18 to 24:1 ratio as i want to be able to get a good speed on slight inclines.
so here she is: http://i.imgur.com/Yj7YX.jpg
Its a gary fisher tarpon 5 series frame i got in a trade, cromoly steel frame. im using a rear 7 speed wheel off an old trek.
The engine is from a Husqvarna 350, 52CC that puts out almost 3.2HP. the housing partially melted from the exhaust so its useless as a chainsaw. its only 8lbs and has a small enough profile the crank arms can pass right by it.
Im mounting the engine backwards because i want to have a gear attached to the clutch to do the gear ratio for me and greatly increase reliability, but need to figure out how im going to attach it, and then have another sprocket going from that to the rear wheel. has anyone done something similar to this before?
I'd really appreciate some comments or suggestions. thanks!
ps. im in maine and if there is anyone nearby with a mig welder that can do just a couple of spot welds that would make this project much easier.
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