Seatposts & Clamps

Having trouble finding that old vintage seatpost size for your bike? Grab a common 25.4mm post and use one of these CNC machined shims to get your trusty steed back on the road. CNC machined aluminum. 70mm long to provide stable clamping. Available in a variety of thicknesses - choose size from drop-down...

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Good condition. Removed from a Wards Hawthorne 24in pre-war girl's cruiser. 208mm long. 16mm diameter. Seat clamp stops 45mm from top of post. No damage - post is straight.

Excellent condition. Lightly used with some minor scuffs and scratches. 195mm long from bottom to clamp centre. 27.2mm diameter. 20mm rear offset. Gipiemme Crono Sprint White Laser Seatpost 27.2mm

Good condition. No damage. Nuts and threads are good. Fits the most common antique and vintage tricycle seatpost sizes. 25mm (1in) seat rail spacing. 11mm (7/16in) or 16mm (5/8in) clamp ring - select from drop-down menu. Black. Antique Tricycle Seat Clamp - 2 Sizes

Good condition. Common fit on many antique and vintage children's tricycles. 90mm vertical section. 70mm angled section. 11mm (7/16in) lower diameter with 3 flats for height adjustment. 12mm (15/32in) upper diameter with flat on underside of clamping area. Antique Tricycle Seatpost #2

Good condition. No damage. Finish is moderately marked and tarnished. Common fit on many antique and vintage children's tricycles. 100mm vertical section. 60mm angled section. 11mm (7/16in) lower diameter. 16mm (5/8in) upper diameter. Antique Tricycle Seatpost #1

Good condition. Unknown fit. 65mm shaft length below clamp. Post shaft is 10mm square. 25mm seat rail spacing. Black. This one is a mystery and seems to be very rare. It is the only vintage tricycle seatpost we have seen that utilizes an integrated seat clamp. Antique Tricycle Seatpost and Clamp

Good condition. Some surface rust. 25mm diameter. 170mm length. 3 inch wide seat mounting bracket. Includes seat mounting bolts. Original post on Leader Victoria Precision loaf seat mx and muscle bikes. Leader Victoria Precision Seatpost for Loaf Style MX Bike Seat