Evolve Stoke Range issues

So I just got my stoke, and on the first couple of rides I am getting reduced range than expected. Basically only getting 6-7 miles, and this is on same path and conditions as my gtr where I get 9-10 miles on travel battery consistently. I swapped travel batteries and got the same reduced mileage on stoke with old gtr travel battery so that takes battery out of equation. Only other difference is wheels 97mm ABEC on gtr and 85mm Caguama blue 77a on stoke. Anyone else having issues, or ideas?

 

Maybe check that the belts aren't too tight?

 

I get about 9-10 on my Stoke in GTR and I am not a lightweight...

 

I went out today on my new stoke and only got 7.8 miles was thing I would get 10 miles