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hayden55 · 02-01-2020, 10:46 PM

Bike has been acquired. Brand new 26" Walmart Special 21-speed full suspension mtb with an aftermarket adult sized seat. $40 total off of fb marketplace.
I've been looking at a lot of odds and ends but it looks like my limiting factor will be how to figure out the rpm/volt of these hub motors. Seems like a lot are limited to x rpm at 36/48v to keep them at level 1,2,3 etc...
I don't want that. That's no fun.
Here is what I'm seeing Right now:
26" wheel kit.
wheel circum x rpm:
100 RPM - 8 mph
200 RPM - 15 mph
300 RPM - 23 mph
400 RPM - 31 mph
500 RPM - 39 mph
582 RPM - 45 mph
Anybody know how to figure out zero load rpm on these kits?
Looking like I will need to order a motor and over volt it to do what I want to do.

02-01-2020, 10:46 PM	#12 (permalink)
hayden55 Master EcoModder Join Date: Dec 2010 Location: USA Posts: 1,170 Sport Utility Prius - '10 Toyota Prius II 90 day: 52.98 mpg (US) 300k Sequoia 4WD - '01 Toyota Sequoia Limited 4wd 90 day: 20.19 mpg (US) Thanks: 352 Thanked 265 Times in 212 Posts	Bike has been acquired. Brand new 26" Walmart Special 21-speed full suspension mtb with an aftermarket adult sized seat. $40 total off of fb marketplace. I've been looking at a lot of odds and ends but it looks like my limiting factor will be how to figure out the rpm/volt of these hub motors. Seems like a lot are limited to x rpm at 36/48v to keep them at level 1,2,3 etc... I don't want that. That's no fun. Here is what I'm seeing Right now: 26" wheel kit. wheel circum x rpm: 100 RPM - 8 mph 200 RPM - 15 mph 300 RPM - 23 mph 400 RPM - 31 mph 500 RPM - 39 mph 582 RPM - 45 mph Anybody know how to figure out zero load rpm on these kits? Looking like I will need to order a motor and over volt it to do what I want to do. Attached Thumbnails __________________ "I feel like the bad decisions come into play when you trade too much of your time for money paying for things you can't really afford." Last edited by hayden55; 02-01-2020 at 11:12 PM..