dchevygod
Member
- Local time
- 11:23 AM
- Joined
- Mar 7, 2011
- Messages
- 473
I have most of the logistics worked out in my head. To start with a new bike,
http://www.bikesdirect.com/products/motobecane/5ht_new_xii.htm
Then a CY460R
http://www.davesmotors.com/chung-yang-146224460-gp460-engine-4-2hp-cy.html
Mated to a 5:1 pocket bike transmission
https://www.pocketbikeparts.com/scooter-gearbox-33cc-43cc-49cc.html
Use a center mount plate for a 4 stroke
http://www.bikeberry.com/heavy-duty-4-stroke-mount-plate.html
An SBP freewheel crankset
http://www.sickbikeparts.com/catalog/index.php?cPath=21&osCsid=jv8nhr39fi52c8udjdr192r4n3
And this is where I need help. I know I need the SBP freewheel, adaptor, I just need one sprocket for the crank to wheel connection but what size if I'm already at 20:1?, because I think the 11:44 cogs I have will work for the trans to crank connection.
I need help choosing the correct bottom cartridge, crank arms and spacers to get it centered with a good chain line and clearance.
Perhaps some of you guys running the 4stroke shift kit could chime in with pics of your bb, sizes and sources for them.
Any help, comments or feedback are greatly appreciated. Its been to long since my last build. Time to do it up right!
http://www.bikesdirect.com/products/motobecane/5ht_new_xii.htm
Then a CY460R
http://www.davesmotors.com/chung-yang-146224460-gp460-engine-4-2hp-cy.html
Mated to a 5:1 pocket bike transmission
https://www.pocketbikeparts.com/scooter-gearbox-33cc-43cc-49cc.html
Use a center mount plate for a 4 stroke
http://www.bikeberry.com/heavy-duty-4-stroke-mount-plate.html
An SBP freewheel crankset
http://www.sickbikeparts.com/catalog/index.php?cPath=21&osCsid=jv8nhr39fi52c8udjdr192r4n3
And this is where I need help. I know I need the SBP freewheel, adaptor, I just need one sprocket for the crank to wheel connection but what size if I'm already at 20:1?, because I think the 11:44 cogs I have will work for the trans to crank connection.
I need help choosing the correct bottom cartridge, crank arms and spacers to get it centered with a good chain line and clearance.
Perhaps some of you guys running the 4stroke shift kit could chime in with pics of your bb, sizes and sources for them.
Any help, comments or feedback are greatly appreciated. Its been to long since my last build. Time to do it up right!