Wrecker the Triumph gel seat 'will fit onto' your Roadster. You will sit a bit lower and further back, as the Roadster seat is higher and pushed the rider further forward. If you want to see if a gel seat would suit you get onto Bruce. I gave him a Standard solo seat and pillion pad, he was going to have it re-upholstered. Doubt he'll be doing it after buying the Classic seat. Sure he'd be happy to let you try it on your bike.