Dia-Compe MX hinged old school BMX bicycle seat post clamp - 25.4mm (1") Red , Black, Blue, White, Chrome

MX style seat clamp. These are Brand New - they are not NOS.

Color: Black Anodized

Size: 25.4mm (1") inner diameter (fits most frames that take a

22.2mm (7/8") seat post, but as always, measure the outer diameter

of the seat mast tubing of your frame or the inner diameter of your

existing seat clamp).

Material: Aluminum alloy 

Please note, some frames have particularly thin tubing and are not

ideal for this clamp - if the seat mast tube of your frame measures

even slightly less than 1" (25.4mm), you may have to shim this

clamp to make it work.