NPC Brown Cow
10 mW
Hi everyone.
I'm mostly familiar with mid-drives so I need a little help finding a Rearhub motor/kit.
So let me lay out my use case:
I need a hub motor to assist a Rotovelo velomobile (73lbs), my self (~260lbs) and cargo (~60lbs) up 20% grades.
Given that use case I think my only option is a cargo rated hub.
Normally I would use a mid-drive to take advantage of gearing but I found out the hard way with a recumbent Quad (with a similar load) that a Mid drive likes to telescope the front boom in on steep hills or snap the long chain (~3x the length of those on traditional diamond frame bikes).
My other requirements:
Available in a 20" x 1.5 to 2" wheel
Must accept a standard Shimano Hyperglide 9-10 speed Cassette, no free wheels.
Up to 1.5kw (don't go suggesting 5kw kits. )
Top speed - 28 mph
Reverse
Bonus Points for Torque Sensing
The 1.5kw and 28 mph are to comply with local moped laws, as my state has zero e-bike definitions. Any bike with a motor is a moped here. It's partially a legal C.Y.A., and if I have to comply with Moped laws might as well take full advantage of the higher power and speed limits. Reverse is a foul weather convenience feature in a Velomobile. The Cassette is mostly a redundancy so I can have the gearing I need should something go wrong with the motor or battery.
A obvious choice would be a Heinzmann Cargo hub (https://ebike.heinzmann.com/en/systems/cargopower/motor) but their American distributer seems to be unreliable at best and a scam at worst.
What other options are there for loads like my use case?
I'm mostly familiar with mid-drives so I need a little help finding a Rearhub motor/kit.
So let me lay out my use case:
I need a hub motor to assist a Rotovelo velomobile (73lbs), my self (~260lbs) and cargo (~60lbs) up 20% grades.
Given that use case I think my only option is a cargo rated hub.
Normally I would use a mid-drive to take advantage of gearing but I found out the hard way with a recumbent Quad (with a similar load) that a Mid drive likes to telescope the front boom in on steep hills or snap the long chain (~3x the length of those on traditional diamond frame bikes).
My other requirements:
Available in a 20" x 1.5 to 2" wheel
Must accept a standard Shimano Hyperglide 9-10 speed Cassette, no free wheels.
Up to 1.5kw (don't go suggesting 5kw kits. )
Top speed - 28 mph
Reverse
Bonus Points for Torque Sensing
The 1.5kw and 28 mph are to comply with local moped laws, as my state has zero e-bike definitions. Any bike with a motor is a moped here. It's partially a legal C.Y.A., and if I have to comply with Moped laws might as well take full advantage of the higher power and speed limits. Reverse is a foul weather convenience feature in a Velomobile. The Cassette is mostly a redundancy so I can have the gearing I need should something go wrong with the motor or battery.
A obvious choice would be a Heinzmann Cargo hub (https://ebike.heinzmann.com/en/systems/cargopower/motor) but their American distributer seems to be unreliable at best and a scam at worst.
What other options are there for loads like my use case?