SE Racing Champ Clamp Aluminum Seat Post Clamp - 31.8mm (1-1/4") - Purple 48H 29" (700c 622mm) Weinmann 519

29" (700c 622mm) Weinmann 519 rim -- The rim is a Silver aluminum single wall that has 36 holes and is drilled for a Schrader valve

Manufacturer Spec ERD: 491mm

The FSA "The Pig" 1-1/8" threadless headset will fit many types of bikes

Color differences do occur among manufacturers and even among batches from the same manufacturer

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SE Racing Champ Clamp Aluminum Seat Post Clamp - 31.8mm (1-1/4") - Purple 48H 29" (700c 622mm) Weinmann 519The SE Champ Clamp is a single bolt, CNC machined 6061 T6 aluminum seat post clamp. It has stainless steel hardware. With a 31. 8mm inner diameter this will fit most newer aluminum BMX bikes with 1 1 4 inch (31. 8mm) frames that use 26. 6mm thru 28. 6mm posts. Color: Purple anodized Note: This part was colored by anodizing, which is a method of coloring metal. Color differences do occur among manufacturers and even among batches from the same