Honda 90301-110-000 NUT, SEAT MOUNT fits the following models and components:
Honda Motorcycle Models with no year SL100K2 A Seat + Rear Fender + Side Cover
Honda Motorcycle 1976 XL100 A Seat + Rear Fender + Side Cover
Honda Motorcycle Models with no year SL125K1 A Seat + Rear Fender + Side Cover
Honda Motorcycle Models with no year SL100K3 A Seat + Rear Fender + Side Cover
Honda Motorcycle Models with no year XL100 A Seat + Rear Fender + Side Cover
Honda Motorcycle Models with no year XL100K1 A Seat + Rear Fender + Side Cover
Honda Motorcycle Models with no year SL125 A Seat + Rear Fender + Side Cover
Honda Motorcycle Models with no year SL125K2 A Seat + Rear Fender + Side Cover
Fitment list from partzilla.com