Shimano Dura-Ace 1st Gen GB-100 NOS Vintage English Bottom Bracket Cups Saddle Loops (Required) Width (Widest Point) - 150

Width (Widest Point) - 150 mm

Compatible Cleats - Shimano SPD (SH-71 only)

Range - 14-32

) found on frames built in their respective countries

Era - 1970s

Shimano Dura-Ace 1st Gen GB-100 NOS Vintage English Bottom Bracket Cups Saddle Loops (Required) Width (Widest Point) - 150Original parts produced in the 1970s New old stock! Still unused after all these years Worldwide shipping Shimano Dura Ace left and right bottom bracket cup set, hailing from Japan and in production during the 1970s (yet still new & unused after all this time). Made from steel and weighing in at 78 grams (for the pair). A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike. OVERVIEW Race Condition New Old