Phil Wood Bolt-On Seat Post Clamp - 31.8mm - Pink - Made in the USA 160mm It includes:

It includes:

They will work with single speed thread-on freewheels that are 13t and larger

The added stiffness significantly improves bike handling while putting more upper body power into your pedal stroke

0mm chrome shaft

They are designed to be used with a square taper bottom bracket and 110mm 5-bolt chain rings (not included)

Phil Wood Bolt-On Seat Post Clamp - 31.8mm - Pink - Made in the USA 160mm It includes:The Phil Wood Seat Post Clamp is machined out of solid US produced billet aluminum. Each collar is machined in house to the same high quality standards applies to all of Phil Wood products. This seat post features a single bolt on collar design. Size: 31. 8mm (1 1 4") Posted Weight: 39 grams Color: Pink