tubs

I am selling a BRAND NEW (never been riden, never even had a tub fitted) handbuilt set of Carbon Tubular Planet-X rims on Spin Cycle Works hubs.

I have been building wheels of all types for nearly 8 years now, as such I have learnt to use the best parts and techniques when lacing and building wheels.

The front wheel has been built using a radial spoke pattern, while the rear is built with a 2-cross lacing pattern on both drive and non-drive sides of the wheel.

Deep section carbon fibre wheels have spurred something of a renaissance in tubular tyres; these Schwalbe Ultremo TT tyres only appeared in the German tyre company's catalogue a couple of years ago.

Like most tubulars, the Ultremo TTs are expensive compared to clinchers, and they're fiddly to fit and fix. On the flip side, carbon wheels for tubulars are cheaper, lighter and easier to make than carbon or carbon/aluminium clincher rims, which need a hook to hold the bead. So you could save money on your time trial wheels and tyres overall by choosing tubs.

I'm planning on getting a new bike soon - a very nice bike. Probably a Ridley Noah.

In looking at wheels the question of tubular v clincher has come up.

I've always used clinchers so I've got no idea whether its worth making the switch to tubs.

What are the benefits ? Supposedly extra comfort, less rolling resistance... anything else ? And the downsides... aren't they hard to change and fit ?

And has anyone used the Shimano Tubeless carbon ?