jawnn
Member
- Local time
- 4:33 PM
- Joined
- Jan 5, 2009
- Messages
- 118
I want to climb a 16% grade (3.2" over 20 inches) at 17 gear-inches. I climb this hill at 10.5 gear-inches with my .25 HP legs pushing about 400 lbs.
Wanting to keep the system as light as possible. I was thinking about a 24-volt motor, but then thought that a 48-volt motor would allow me to use a smaller motor because of the increased power at the low speeds????? I do not want to go fast.
What gear ratio is needed? I would really like a formula so that I can calculate other bikes and cargo weights.
Wanting to keep the system as light as possible. I was thinking about a 24-volt motor, but then thought that a 48-volt motor would allow me to use a smaller motor because of the increased power at the low speeds????? I do not want to go fast.
What gear ratio is needed? I would really like a formula so that I can calculate other bikes and cargo weights.
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