Hello,
Do you think a BBS01 (ie. 250W) powered by a 36V 17Ah battery is enough to ride a ~200kg/440lbs (rider + bike + load) trike with a Nexus 7 gear hub, 32/20T cogs, and 20" (406) wheels?
The owner has no problem going up hill, but complains that he has to push the Bafang to the max to ride on the flat at a non-ridiculous speed (eg. 20-22 kph/12-13 mph).
He chose a 250W to avoid the legal issues in Europe when using a more powerful motor.
Considering a Nexus 7 on that bikes translates into
18.9-46.2" gear inches (1.5-3.7m development), is that to be expected? Would upgrading the battery to 48/52V make a significant difference? Or is upgrading to a 500/750/1,000W motor the only realistic solution?
Thank you.