Rims: Alex C1000 20'' ETRTO 406-20 Inner width: 20mm 6061 Alloy Single Wall Silver Finish Drilled for Schrader valve For rim brakes only 36 holesFront Hubs Configurations: -01: Falcon Coaster, Bolt-On, 110x3/8'', 18T cog -05: Formula FM21-QR, Quick Release, 100x9Rear Hubs Configurations: -06: Formula FM31-QR, Quick Release, Freewheel, 135x10Assembled in North America by experienced wheelbuilders with Sapim stainless steel spokes and 14mm Brass Polyax Nipples Attributes Axle Type QR Depth 16mm Freehub Body Freewheel Hub Model Formula FM-31-QR Hub Spacing 135mm Position Rear Rim Color Silver Rim Construction Single wall Rim Drilling 36 Rim External Width 25.2mm Rim inner width range 0-21.9mm Rim Internal Width 19.9mm Rim Material Aluminum Rim Model Alex C1000 Skewers Included Yes Spoke Type Stainless Valve Schrader Wheel Diameter/ISO 20'' / 406 Wheel Tire Type Clincher Wheel-Brake Comp. Rim
