51mm from under head, 12mm is threaded. Requires a 5/16" nut if your seat tube has no thread.
NOS SHIMANO 600 SP-6400-B SEATPOST 27.2 mm VINTAGE BICYCLE OLD ROAD RACING AERO
Campagnolo Double / 2 Speed Vintage Retro Road Bike Front Detaileur Mech
VITTORIA - CYCLING TOURING SHOES - 42 ( EU ) - 09 1/2 ( US ) - VINTAGE - NEW
2 x Vintage Mens Ronhill Bikester cycling Leggings Size Large
2 pair Vintage Duegi Cycling Shoes Road Leather Mens 3-Bolt 40 & 42 hardly used
KREG® Protec-Kote™ Deck Screw - 51mm/2.00", #8 Coarse-Thread, Pan Head, 700-count
