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Rim Width (Internal) 22 Defined Color Black Wheel Size 20" Color Black/Silver ISO Diameter 406 / 20" BMX Valve Standard Schrader Rim Center Offset (mm) 0 Weight 400 Tire Type Clincher Rim Material Alloy Hub Drilling 36 Brake Track Machined Manufacturer Spec ERD (mm) 395
Hole in corner for pad pin or other retention mechanism
Color Black Drivetrain Speeds 12 Rear Der/Shifter Compatibility SRAM X-Actuation Shifter Style Trigger
(mm) 30 Manufacturer Number 61903 (6903) Material Ceramic Thickness 7
Surly Big Dummy Rails: Pair CheckoutSpec= Quiet Rim Width (Internal) 22 DefinedSurly Big Dummy Rails: Pair. Replacement parts for the Surly cargo deck and rack system.
