Optis Tubeless Tire Insert - 29" x 28-40mm Insert Only. 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 bike’s suspension and they provide essential support to the cornering forces that the bike encounters. OPTIS separates the function of the bikeʼs grip from its suspension and stability by turning the tire into a two-chamber system. This allows for lower tire pressures while the insert is inflated to a higher pressure than the tire keeping the tire supported while allowing the main volume to be at a lower pressure that provides optimum grip.
Riders can separately tune the tires grip and internal support through a dual-valve design allowing for lower tire pressures and ride characteristics that would not be possible with a traditional tubeless or foam insert set-up
Instead of forming to the internal tire casing like an ordinary inner tube OPTIS cinches down against the tire bead and hugs the rim when inflated. This creates a bead lock that prevents burping protects the rim from impacts and offers a limited amount of run-flat protection when the tire is damaged or punctured
OPTIS reduces rolling resistance by facilitating the use of lower pressures and lighter tires. Rolling efficiency is greatly improved on rough surfaces without the hysteresis losses often associated with foam inserts
OPTIS is lightweight adding less than 90g per wheel to an ordinary tubeless set-up and provides greater protection than traditional inserts that are much heavier
Valve is constructed from Aluminum Insert is made from Nylon and TPU (Thermoplastic Polyurethane)
Designed to fit rims with 28 – 40mm internal width at a maximum inflation of 50psi
TECH SPECS
Defined Color Yellow
QUALITY SERVICE
Just real riders who strive to provide the best customer service.
FREE SHIPPING
Most orders over $75 ship free anywhere within the lower 48 United States
RETURNS
Not happy with your order, just send it back to us for a refund or exchange.
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Our Race Team Sponsors
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Race Team
Racing is a huge part of the culture at Lenny’s Bike Shop, and the Lenny’s Race Team represents the shop on trails and racecourses throughout the region. Made up of passionate riders who love pushing their limits, the team competes in gravity and mountain bike events while proudly representing the Lenny’s community.
Why Shop with Lenny's?
At Lenny’s Bike Shop, cycling isn’t just a business — it’s a passion. As a locally owned, full-service bike shop, Lenny’s is dedicated to helping riders of every level enjoy the sport with the right bikes, gear, and expert support.
From high-quality bicycles and components to trusted service and advice, the team focuses on delivering products and support that help you ride more and ride better.
Whether you’re upgrading your bike, tuning up your ride, or just getting started, you’ll find knowledgeable staff, great brands, and a commitment to keeping the cycling community rolling.