Get Back Riding While You're Still WarmThe Topeak Tubi Master X Micro Tubeless Tyre Repair and Inflation Kit will get you going again pronto after a flat. The Tubi Master X features an advanced 2-in-1 CO2 injector head that repairs a puncture and inflates the tubeless tyre in one step with massive air, or it can simply be used as a traditional CO2 inflator via the valve stem.Easy To StowThe included mounting strap attaches to seatposts, saddle rails, or frame tubes and can carry one or two threaded 25g CO2 cartridges. The inflator head is compatible with both Presta and Schrader valves.Added FeaturesA repair plug compartment, a mounting module with strap, dust cap, an optional 16g CO2 cartridge mount sleeve, round out the useful features of this handy, easy to use tool.One-Step Repair1. Plug through tyre hole2. Massive air inflation by pushing Air Regulator3. Plug Retainer keeps plug in place during Plug Tool removal4.RideInflation1. Thread-in CO2 cartridge2. Engage onto valve stem3. Massive air inflation by pushing Air Regulator4.Ride