cloakedvillain
Well-Known Member
Aerodynamic drag is the biggest obstacle to speed. To make a fast motorized bicycle we need to look at the fastest motorcycles and bicycles: sport bikes and road bikes. Part of the speed is power, my heart goes out to roadies and high revving multi-cylinder engines but these alone can only go so far. If we could somehow cut aerodynamic losses we can get more out of the power on tap.
The easiest way to do this is to change out the handle bars and stem so you can drop down and get narrow. If you good with crafts you could build a fairing but It may do more harm than good, only models and prototypes could tell. Skinnier tires have less aero drag but its marginal compared to the gains from dropping down with narrow bars.
Taller gearing doesn't necessarily mean faster. A small sprocket may calculate out to a high speed but it doesn't matter if you cant get moving.
The easiest way to do this is to change out the handle bars and stem so you can drop down and get narrow. If you good with crafts you could build a fairing but It may do more harm than good, only models and prototypes could tell. Skinnier tires have less aero drag but its marginal compared to the gains from dropping down with narrow bars.
Taller gearing doesn't necessarily mean faster. A small sprocket may calculate out to a high speed but it doesn't matter if you cant get moving.