Optis Tubeless Tire Insert - 29" x 28-40mm Insert Only ModelNumber=J2618 Includes GX Eagle Transmission Flattop

Includes GX Eagle Transmission Flattop chain with solid pins fully approved E-MTB use

Front/Rear RR Cassette Body/Freehub 11-12s XD Hole Count 32H Spacing/Axle 12TA Material Aly Color Blk Weight Brake Type 6B Spacing 148 PCD-L PCD-R LTF-L LTF-R CTF-L CTF-R

Pedal Type Platform Color Blue Pedal Spindle 9/16" Pedal Body Material Composite Defined Color Blue Weight 380 Spindle Material Chromoly

}Park Tool BX-3 Rolling Big Blue Box

Optis Tubeless Tire Insert - 29" x 28-40mm Insert Only ModelNumber=J2618 Includes GX Eagle Transmission FlattopOPTIS (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