Timbone
Well-Known Member
I am very happy with my one gear HT motorbike but I can't help but wonder about how you can make an even better product. I'd welcome any and all feedback because I need all the info I can get to make good decisions.
First, it would be good to source a good engine. I've been looking at those RTM clones that Dax offers. $500. Right now, usuing a 41T rear cog, I get a cruise of about 29 at about 7K RPM. This little engine (49cc), even if you ran it at a meager 9K, would provide a cruise of at least 35mph. It would be really nice to run in the low thirties just to filter better into traffic.
Any and all feedback on this motor would be very appreciated by me.
Second, bicycle frames are relatively small and yield short wheelbases. My Trek carbon fiber roadbike is at 39". My Skyhawk frame is about 44". It would be better to have a bit longer wheelbase.
Instinctively, we think about welding frames in a jig, a very difficult task that requires real skill and expertise. Has anyone ever considered a bolt up frame? I think very affordable 12 gauge Unistrut, properly designed and gussetted, could make a superior frame. Clamp/ weld the headtube and bottom bracket tube. Maybe even fashion in a tube for a swing arm for rear suspension.
Anyone ever done anything like that?
Then there's that idea I have to work in a simple 2 gear dog clutch...
Timbone
First, it would be good to source a good engine. I've been looking at those RTM clones that Dax offers. $500. Right now, usuing a 41T rear cog, I get a cruise of about 29 at about 7K RPM. This little engine (49cc), even if you ran it at a meager 9K, would provide a cruise of at least 35mph. It would be really nice to run in the low thirties just to filter better into traffic.
Any and all feedback on this motor would be very appreciated by me.
Second, bicycle frames are relatively small and yield short wheelbases. My Trek carbon fiber roadbike is at 39". My Skyhawk frame is about 44". It would be better to have a bit longer wheelbase.
Instinctively, we think about welding frames in a jig, a very difficult task that requires real skill and expertise. Has anyone ever considered a bolt up frame? I think very affordable 12 gauge Unistrut, properly designed and gussetted, could make a superior frame. Clamp/ weld the headtube and bottom bracket tube. Maybe even fashion in a tube for a swing arm for rear suspension.
Anyone ever done anything like that?
Then there's that idea I have to work in a simple 2 gear dog clutch...
Timbone