Amazon.com: DIA COMPE MX1500N Seat Clamp for BMX, φ1.0 inches (25.4 mm), Blue : Sports & Outdoors
Amazon.com: Thinvik Bike Seat Clamp with Limited Position Design, Metal Bicycle Saddle Clamp for Standard Rail Saddles of BMX/MTB/Road/Exercise Bike : Sports & Outdoors
Dia-Compe MX hinged old school BMX bicycle seat clamp - 25.4mm (1") PURPLE - Porkchop BMX
Animal BMX JD Seat Post Clamp - 28.6mm - 1-1/8" - Metallic Red - BMXGuru.com / C&W Cycle
Speedline Parts | Quick Release Pro BMX Seatpost Clamp - Supercross BMX