Tubular to Clincher

Easy enough to fit. They do have a reputation for being arcane black magic and it is a bit of a ritual taking several steps over a couple of days. But quite within the abilities of a home mechanic. Quite satisfying all told and lots of opportunity to upset the Mrs with tyres and wheels in the house plus glue over everything.

Your hoary arsed audax rider wouldn't be caught dead without a pre glued tub in their saddlebag, personally I carry some sealant, a valve core extractor and a mini pump.

JazzyBoom wrote:

Are they easy enough to swap? It must be a pain carrying one round when out on a long ride.

Yes. Pull punctured tyre off, fit new tyre, inflate, ride. It doesn't take any longer than changing a tube. Most wouldn't carry a full-size spare, and a 21mm tub isn't much bigger than a tube.

I carry a Tufo S3 as my spare, it's a tubeless tubular so about as light as possible, and folds down to the same size as the mini pump it goes next to in my jersey pocket. I also carry a bottle of Tufo Extreme sealant which plugs most things in a pinch, along with a single tyre lever to help get the occasional stubborn tyre off the rim

You can carry a folded tub under the seat, in the position you might have a saddle bag. Here's how to fold it:

https://cycletechreview.com/2012/features/fold-tubular-tyre/2/

Veloflex Roubaix have always been good to me.