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Trapezoid-cut offers optimum widestance tire shaping trailduty impact resistance STR tubeless tire retention and weight savings Brake Compatibility Disc Only Rim Width (Internal) 74 Brake Track None Manufacturer Spec ERD (mm) 551 Valve Presta Color Black Wheel Size 26" Fat Defined Color Black ISO Diameter 559 / 26" MTN Hub Drilling 32 Rim Material Alloy Tire Type Tubeless Ready Rim Center Offset (mm) 0
Ramped center knobs improve rolling resistance
External compression platform rebound air pressure adjustments
Attachment for handlebar
To install
Surly Track Cog 1/8'' X 18t Silver CheckoutTitle=Schwalbe Green Marathon Tire - 20 x 1.50 Trapezoid-cut offers optimum widestance tireSurly track cogs are threaded the same as a BMX freewheel (1. 375 x 24 tpi right hand threads). This means that they will fit on single speed rear hubs as well as BMX freewheel hubs but this application is not recommended. Track cogs are meant to work on track hubs only. 415 hardened chromoly steel 1. 375" x 24 tpi Photo for color and material reference only Tooth Count 18 Size 1 8''
