Seatposts & Clamps

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. Appears to be cast iron. Heavily corroded but fully functional. 33mm seat rail spacing. Accommodates up to 17mm seatpost. Designed for dog-leg style seatpost. Antique Bicycle Seat Clamp

Fair condition. 210mm x 27mm (1 1/16in) vertical shaft. 50mm x 22mm (7/8in) horizontal shaft. Both shafts have some small dents and deformities from use. Surface has many scrapes and scratches. Unknown brand. Chrome is decent. 27mm x 22mm Antique Forward Angle Seatpost

Good condition. 24mm diameter. Standard 22.2mm (7/8in) seat clamping diameter. Post is straight. Chrome has some scrapes and scratches from use. 2 lengths available: 200mm overall. 230mm overall. Please select from drop-down menu. 24mm Vintage Bicycle Seatpost

Fair condition. 140mm x 22.2mm (7/8in) vertical shaft. 57mm x 22.2mm (7/8in) horizontal shaft. Horizontal shafts have multiple small dents and deformities. Finish is deteriorated from use and age. Unknown brand. Pre-war vintage. Forward or rearward angle - please choose from the drop-down menu. 22.2mm...

Good condition. 204mm overall length. 22.2mm (7/8in) diameter. Seat clamping area has two small stops to prevent the seat clamp from sliding down the post. Post is straight. No dents. Finish has scrapes and scratches from use. 22.2mm 7/8in Vintage Bicycle Seatpost

Good condition. 155mm x 21mm (7/8in) vertical shaft. 72mm x 16mm (5/8in) horizontal shaft. Vertical shaft has some small dents on the forward side. Surface has many scrapes and scratches from use. Unknown brand. Pre-war vintage. 21mm x 16mm Antique Forward Angle Seatpost

Good condition. 138mm long. 18mm diameter. Standard 22.2mm (7/8in) seat clamping area. Post is straight. Chrome has some scrapes and scratches from use. 18mm Antique Bicycle Seatpost

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.