Hub motor cassette

Wayners

Esteemed Pedelecer
Jun 5, 2023
423
94
55
Gloucester
I've seen some nice motor cassettes for wheels and I guess you build your own wheel from them? Not seen any rims for sale yet. How difficult is it to build a wheel and is it a good option? I'm thinking about having ago for interest.
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
7,315
3,380
Telford
It's easy to build a wheel as long as you know how to do it. You know how to do it by following instructions and practicing.
What do you nean by cassette wheels? What are you trying to achieve?
 

Wayners

Esteemed Pedelecer
Jun 5, 2023
423
94
55
Gloucester
Sorry @saneagle
I'm not using the correct words to to discribe a hub motor.

Was a 800w hub motor posted here and I thought yeah. That will do nicely. Not sure what I'm trying to achieve tbh. Value for money and build a wheel myself for the fun I guess.
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
7,315
3,380
Telford
The 800w hub-motor is probably the Q128H. It's a freewheel motor for freewheel gears. The Q128C is the cassette version, but only rated at 500w because it's a bit narrower for the cassette. Whichever motor you use, you get the same power with the same controller. 250w, 500w, 800w are only ratings, i.e. it's the controller that decides the power not the motor, but obviously the motor needs to be tough enough to cope with whatever power you give it. At 48v, Q128C is happy with 22 amps. the Q128H can do 25 amps.

22 amps at 48v is a lot of power. i think most riders would be happy with that.
 
Last edited:
  • Like
Reactions: Wayners

Nealh

Esteemed Pedelecer
Aug 7, 2014
21,071
8,611
61
West Sx RH
One can now buy AKM 128 sxhc cassette motor it is 800w rated, weight is good 2.8kg.