Odyssey OPTIS Insert With Valve P/V Tube (29 Inch)

Odyssey OPTIS Insert With Valve P/V Tube (29 Inch)

Marsoni

M251S

$135.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Odyssey OPTIS Insert With Valve P/V Tube (29 Inch)What is OPTIS? OPTIS (Odyssey Pneumatic Tire Insert System) is a lightweight, highly tunable, high efficiency, tubeless tire insert. Tire assemblies are one of the most important performance factors for any bike. They provide all the grip to the ground, they serve as a critical first element of the bikes suspension and they provide essential support to the cornering forces that the bike encounters. Pressure choice is always a compromise to balance

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I really wanted to love these, and I *almost* did. They are comfortable and cute. But they are a little wide across the mid-foot so they were a little sloppy on my feet. The platform is quite high, and while at 5'3" I appreciated the extra height, between that and being too wide, I felt they were an accident waiting to happen. If they were slightly more narrow and a little lower, I would have been in love, but I had to return them. They seem true to size except for the extra width.

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Reviewed in the United States on March 10, 2026