Regina Extra Super Racing (50) Silver NOS/NIB Vintage 6/7/8 Speed Chain cicli-guadrini Threaded Section - 23 mm
Yard notes & kiln story
Description
Regina Extra Super Racing (50) Silver NOS NIB Vintage 6 7 8 Speed Chain cicli guadrini Threaded Section 23 mm Threaded Section 23 mm Angle 97 degrees based on the outer width of the chain and the cog width it was designed for 3 16" (“inch pitch”) for very early track bikes