COLUMBUS Compass 1-1/4" - 1-1/8" Tapered Headset & Bearing Kit
Head Set Standard EC34-28.6/EC44-33
1-1/8” UPPER 1-1/4” LOWER
45° STAINLESS STEEL ACB - CARBON TOP CAP
UPPER STACK HEIGHT 16mm - LOWER STACK HEIGHT 0.8mm
HEADTUBE O.D. Ø 46mm/52mm - HEADTUBE I.D. Ø 42mm/47mm
Product Code: 733SS30
COLUMBUS Tubi is a manufacturer of steel tubing used in bicycle frames. Located in Settala, in the Province of Milan. The company was founded in 1919 by A.L. Colombo and was taken over by Colombo's youngest son, Antonio, in 1977.