Rear hub motor juddering when spun by hand /pedalled

Ianb84

Pedelecer
May 12, 2018
31
6
40
Edinburgh
36v motor's will generally work at 48, which would make them 30% faster and 30% more powerful. It's not advised for one that's already fast, say more than 260 rpm at 36v. The controller and LCD need to be able to work at 48v too. Most 36v ones can't, except the KT dual voltage ones.
Ok thanks, I’d be looking to use a sw900 display and then I could just buy an additional 48v controller
 

thelarkbox

Esteemed Pedelecer
Aug 23, 2023
1,209
371
oxon
Ok thanks, I’d be looking to use a sw900 display and then I could just buy an additional 48v controller
May I suggest you look at the KT range of controllers and display options (ktlcd-1, ktlcd3, ktlcd4, .......) ktlcd3 and ktlcd10 are both similar in form to the sw900 iirc.

The controllers have more configuration options, than most giving you options further along to change things come in the standard silver box format and others like in tube or in battery base.. As well as being available in dual voltage options in the silver box format.
One gotcha to watch for is some sellers advertising the cheaper square-wave controllers without making the distinction, they still work just the same but the motor may be louder and jerky when run slow?..