<<Will the rear coaster brake work OK with the gas motor?
Boy, mine sure does... It's saved me from crazy drivers talking on cell phones many times.
The only disadvantage to the coaster is that you can't wind the pedals backward to give yourself a nice high pedal push-off to start. You have to roll the bike forward or back to get the pedal up. No big crisis, just annoying to remember to do it while you're stopped.
John H. in Milwaukee