The Odyssey OPTIS (Odyssey Pneumatic Tire Insert System) is a lightweight, high-efficiency tubeless tire insert designed for MTB, and dirt jump riders running low-pressure tubeless setups. Available in 27.5" or 29" sizes, OPTIS improves grip, reduces tire burping, protects rims from impacts, and allows for lower tire pressures without sacrificing support. The insert inflates separately at a higher pressure to stabilize the tire, protect against pinches, and even provide temporary run-flat performance in case of a flat. This allows you to fine-tune your preference by running a higher PSI in the core and a lower pressure in the main tire chamber. Easy to install and significantly lighter than traditional foam inserts, OPTIS also helps with tire seating and improves rolling resistance.
Note: Compatible OPTIS valves sold separately.