i managed to do this to an old road bike. spokes were also rusty but left overnight with penetrating oil and all the nipples loosened up. had to redish wheel a fair bit, tweak axle spacing, After rotafixing, the sprocket never came off, and i've skidded through 3 tyres since. maybe the steel on alloy issue i always have with seatposts has worked in my favour for once. What did eventually go was the chainstays - huge fatigue cracks each side as the frame either wasnt designed for the being ridden fixed or had rusted through.
i managed to do this to an old road bike. spokes were also rusty but left overnight with penetrating oil and all the nipples loosened up. had to redish wheel a fair bit, tweak axle spacing, After rotafixing, the sprocket never came off, and i've skidded through 3 tyres since. maybe the steel on alloy issue i always have with seatposts has worked in my favour for once. What did eventually go was the chainstays - huge fatigue cracks each side as the frame either wasnt designed for the being ridden fixed or had rusted through.