Stats:
24v system
2 x 17ah SLA batteries
600 watt (864 peak) electric motor made by Currie
15 x 80 gear
Bike is a no-name singlespeed road bike I got off ebay for $250.
Bike is able to be pedaling, but the motor hinders the left pedal stroke (must use heel of foot!)
Performance:
Cruises easily at 24mph on flats.
Top speed of 33mph (with a little help getting it up there).
Goes up 8% grade at 20mph with moderate pedal assist.
Total bike weight 70lbs.
Accleration is modest, but with a little pedaling it quickly gets into the 20s. Might be a little overgeared, but I am currently trying to find a 90 or 100 tooth #25 sprocket that will fit on the mechanism/axle.
Cost: $600 including bike
Noise: What noise?! Just a very slight hum, very quiet chain in fact.
Motorization is completely homemade and all me. Just a hack saw, drill and small hand tools! Yes, that is a lunch box holding my batteries, it works perfectly! haha
24v system
2 x 17ah SLA batteries
600 watt (864 peak) electric motor made by Currie
15 x 80 gear
Bike is a no-name singlespeed road bike I got off ebay for $250.
Bike is able to be pedaling, but the motor hinders the left pedal stroke (must use heel of foot!)
Performance:
Cruises easily at 24mph on flats.
Top speed of 33mph (with a little help getting it up there).
Goes up 8% grade at 20mph with moderate pedal assist.
Total bike weight 70lbs.
Accleration is modest, but with a little pedaling it quickly gets into the 20s. Might be a little overgeared, but I am currently trying to find a 90 or 100 tooth #25 sprocket that will fit on the mechanism/axle.
Cost: $600 including bike
Noise: What noise?! Just a very slight hum, very quiet chain in fact.
Motorization is completely homemade and all me. Just a hack saw, drill and small hand tools! Yes, that is a lunch box holding my batteries, it works perfectly! haha