How to fix a rear flat on a bike with a hub gear, hub brake, and full chaincase
Last night as i left a tasting at Upright Brewing, i heard "fss fss fss fss" -- the air escaping from my rear tire. I didn't have a patch kit with me. It was dark, late, wet, and i was a little intoxicated, so I locked the bike up and called a cab. In the morning, I rode the Brompton down with a patch kit and got to work.

This bike has a hub gear, hub brake, and full chaincase. This particular combination strikes fear into the hearts of many concerning the alleged difficulty of dealing with a flat rear tire. This fear is, um, silly.

Here's the big secret: don't remove the wheel. That's pretty much it. Observe.

Admittedly, if the tube is damaged beyond repair or the tire in need of replacement, then the wheel must come off, and that takes half an hour and some tools if you know what you're doing. (Documented here: www.dutchbikeseattle.com/_blog/Dutch_Bike_Co_Weblog/post/... ) This is a rare event. Still, that's why really fat beefy tires like these 622-47 Schwalbe Marathons are a good idea with setups like this.

Once you make the mental shift, it feels natural and easy to patch in place even on bikes with quick release wheels. Seriously. If you're going to patch, it's almost always going to be faster to leave the wheel on the bike. Front wheel too.
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