sprocket196
New Member
- Local time
- 3:31 PM
- Joined
- Jan 13, 2009
- Messages
- 2
Hello Motored Bikes Fans!
I am currently working on building my first motored bike.
It's a Firmstrong CA520 (kind of like cheap Electra Townie knock-off) with an HS 4 stroke engine kit. So far I have had the challenges of getting the engine mounted and the rear sprocket drive sprocket properly centered. Then there was the small inconvenience of the pedals hitting the engine crankcase - I had to convert the bike crank from a 1-piece to a 3-piece in order to resolve it. Then there was the fact that the 7-speeds of the bike were not so useful, since the bike was much heavier now and my new front sprocket (with the widen pedals 3-piece crank) was larger, making the gearing even taller. So I had to find a front sprocket from a child's bike, and with a bit of welding and grinding I've made it work, and now I have 7 useful speeds again. Currently, I am working on a springer fork for it, which is a further challenge since the bike has a really long head tube, and the commonly available springer kits end up with some strange geometry -- so a few more modifications with the grinder and welder.
What a great hobby!
Regards,
Sprocket196
I am currently working on building my first motored bike.
It's a Firmstrong CA520 (kind of like cheap Electra Townie knock-off) with an HS 4 stroke engine kit. So far I have had the challenges of getting the engine mounted and the rear sprocket drive sprocket properly centered. Then there was the small inconvenience of the pedals hitting the engine crankcase - I had to convert the bike crank from a 1-piece to a 3-piece in order to resolve it. Then there was the fact that the 7-speeds of the bike were not so useful, since the bike was much heavier now and my new front sprocket (with the widen pedals 3-piece crank) was larger, making the gearing even taller. So I had to find a front sprocket from a child's bike, and with a bit of welding and grinding I've made it work, and now I have 7 useful speeds again. Currently, I am working on a springer fork for it, which is a further challenge since the bike has a really long head tube, and the commonly available springer kits end up with some strange geometry -- so a few more modifications with the grinder and welder.
What a great hobby!
Regards,
Sprocket196
