Optis Tubeless Tire Insert - 29" x 28-40mm Insert Only ModelNumber=J2618 Front/Rear RR Cassette Body/Freehub 11-12s

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

}Park Tool BX-3 Rolling Big Blue Box

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

Diameter 700C Brand Velocity Model Dyad ISO 622 ID Width 19 Width OD 24 Profile 22 Wall Dbl Side MSW Color Silver Hole Count 40 Valve PV Weight 525g ERD 596 Extras

The Speedmax remains one of the best models across all brands in terms of consistent flex and quality control and it is easy for us to recommend as a great choice in all conditions

Optis Tubeless Tire Insert - 29" x 28-40mm Insert Only ModelNumber=J2618 Front/Rear RR Cassette Body/Freehub 11-12sOPTIS (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