so now i have a chair with 6mph motor on one side and 8 on the other,i have looked on ali express but can not be sure any will be right mostly because i do not understand what rpm to choose in order to get around the 8mph mark(13 inch wheels) and not end up paying loads and ending up with a 4mph or less unusable chair,i did search for many days online and have rang every dealer listed on google in the uk,i would hate to scrap the old puma as she really likes it,any help would be great,cheers all

