I've been riding "The Iron Dragon", my twin-engined monster daily for three months, about 500 miles. Yesterday on my way home, the engine on my Staton rear chain drive unexpectedly jumps into neutral at 25 mph. I coasted to a safe stop, lifted the bike onto the sidewalk and assessed the damage...
The 16tooth freewheel sprocket fell apart, and all the bearings were gone!
Soo, I turned the rear engine off, and motored home at 20 mph with the front engine.
The day before, the rear engine had started to surge and the chain had slackened. I thought it unusual that the chain was loose after several hundreds of miles' service. I made a mental note to check everything this weekend, but the sprocket expired yesterday. That must've been the reason the chain was loose.
I emailed Dave Staton, and am awaiting his reply.
Has this happened to anyone else with the freewheel sprocket on the wheel hub?
Honey, it's just a bicycle. and i REALLY need it to excercise, and to ride it to work.(hehe)