Odyssey

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert Only

Odyssey Optis Tubeless Tire Insert turns a standard tubeless MTB setup into a true two-chamber system, letting riders run lower tire pressures for traction while keeping the casing supported for stability in corners and under load. Unlike foam-style inserts, OPTIS (Odyssey Pneumatic Tire Insert System) uses an inflatable insert that cinches against the tire bead and hugs the rim when pressurized, helping lock the bead in place and adding rim-impact protection without a heavy weight penalty.

• Two-chamber pneumatic support - Separately tunes tire grip (tire pressure) and internal support (insert pressure) for a wider usable pressure range than conventional tubeless
• Bead-locking interface - Inflated insert cinches against the tire bead to help resist burping and stabilize the tire under hard cornering
• Rim protection without bulk - Adds impact buffering at the rim while weighing under 90g per wheel in a typical tubeless setup
• Wide-rim fit - Designed for 27.5" wheels on rims with 28–40mm internal width; insert chamber rated to a 50 psi maximum
• Insert-only replacement - Includes the tube insert only; intended for use within the OPTIS dual-valve system
• Material spec - Insert constructed from Nylon and TPU (Thermoplastic Polyurethane)