We have a couple of Wisper 705 t bikes, two years old, one with larger battery, in immaculate condition, very low use, about 250miles on one and 300 on the other. What sort of money would we be looking at for these, main reason for sale is we want a couple of fold up bikes to take in car on holidays etc. Any advice appreciated. May try local e bike shop but I’m sure they don’t do part exchange at all.