Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve MFPN=DROPOUT-274 which offers GPS-based pace guidance

which offers GPS-based pace guidance for a selected course or distance

Ultra) at a more affordable price than the FF1

2 Color Black Rise 4 Material Chromoly Steel Width 28 Defined Color Black Model MX-4

BB Included No Chainline/Hub Compatibility 130 Hubs Chainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm Chainstay Chainring BCD 110 Color Black Crank Intended Use Cyclocross Crank Length (mm) 170 Defined Color Black Drivetrain Speeds 11 Drivetrain Speeds 10 Number of Chainrings Chain Retaining Single Pedal Spindle 9/16" Rings 42 Spindle Interface Type SRAM/Truvativ GXP keyword search CX1

18 Bolt Mount Diameter 6

Optis Tubeless Tire Insert - 27.5" x 28-40mm Insert w/ Standard Presta Valve MFPN=DROPOUT-274 which offers GPS-based pace guidanceOPTIS (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. OPTIS separates the function of the bikes grip from its suspension and