Re: scooter drum brake
The roller brake shimano makes is completely different. These come on Grubee hubs as previously stated. the drum threads onto right hand threads and the band is shimmed away and anchored like a coaster. You might be able to run it on a flip flop hub w/ your shift kit. I'll check for you tomorrow I have a flip flop and one of those brakes. I think they are the same size thread. Also you would need to change the axle and over locknut distance on the hub. The spooky tooth hd wheel is a Grubee hub, The sprocket adapter screws on a left hand thread so it tightens when you ride and the brake onto a right hand thread so it tightens when you brake!