For all Bridgestone 50 ( Step-Thru) owners needing replacement seat covers, they are available on eBay by a seller called " hondasvintage"... They are reasonably decent, and the "Bridgestone" stenciling on rear of seat is very original-looking. The price is $19.99 + $4.95 shipping. The fit and finish is pretty good. I had provided him ( the eBay dealer) a complete, original, but age-brittle BS-50 Step-Thru seat to have an accurate pattern.... The seat covers are made in in Viet Nam AND, just in case you are wondering, quite sometime ago, Richard Clark had given me permission to post a message regarding this seat cover being available, since Richard does not offer these seat covers for sale in his Bridgestone Store.