Will this cover fit a pride sonic (sc50 / sc52) mobility scooter ? I was trying to get the setbase2055 which would be the exact replacement I need, help.
According to a Pride technician, as the original seat and its covers have been discontinued, you have a couple options:
This seat cover (item X98-1948) could fit, and it would be recommended to install it over your original/current cover as this cover is meant for a slightly larger seat (18x18 - your original seat is 17x16), but it won't be a super snug fit and may have excess fabric.
Your other options would be to either have an upholsterer re-upholster the seat, or you could replace the seat outright. If you would like to replace the seat, you would want to order item P49-6867, found here:
https://www.monsterscooterparts.com/mobility/mobility-brands/pridemobility/pridesonic/17-x17-black-textured-vinyl-seat-cover-set-for-the-pride-revo-sonic-star-victory-3-go-go-scooters.html