Tubey tubeless

[Horse]

You guys may be aware?

https://www.cyclingnews.com/bikes/pro-b ... s-roubaix/

The 'Odyssey Optis' system uses an inflatable tyre liner, which sits inside a tubeless tyre

Paris-Roubaix always causes flats and even destroys wheels entirely. We have seen teams use foam tyre inserts and even tubular glue to help provide extra insurance to the tubeless setups that are now used, to ensure the tyres stay on the rim in the event of an untimely puncture.

Odyssey, a brand that's perhaps more well-known in the BMX world, is behind the Optis system, which it offers in 27.5 / 29 and 700c road sizes. The 700c long-valve Optis tubes retail at $89.99 each, making it a fairly expensive upgrade.

Optis stand for Odyssey Pneumatic tyre insert system. It's a tuneable nylon reinforced TPU insert, which resists expanding when inflated, meaning it can be inflated to a higher pressure than the tyre it sits inside, while allowing that tyre to still be inflated to its own optimal (read: lower) pressure.

It is said to help prevent tyre burping and to protect against impacts and pinch flats, as well as acting as a bead lock whilst giving the rider more of a chance of riding on a punctured tyre, which sounds like a perfect fit for a lot of the challenges that the Roubaix cobblestones create.

[Mr Moofo]

Sounds like an inner tube to me ...
Tubeless works well , just saying

[Horse]

Sounds like an inner tube to me ...
Tubeless works well , just saying

Paris-Roubaix always causes flats and even destroys wheels entirely. We have seen teams use foam tyre inserts and even tubular glue to help provide extra insurance to the tubeless setups that are now used, to ensure the tyres stay on the rim in the event of an untimely puncture.