Shimano Dura-Ace 1st Gen GB-100 NOS Vintage English Bottom Bracket Cups Saddle Loops (Required) ) found on frames built

) found on frames built in their respective countries

Stock Code - D-HB29C

Compatible Cleats - Time TBT

Stock Code - U-ST113V

Range - 14-32

Shimano Dura-Ace 1st Gen GB-100 NOS Vintage English Bottom Bracket Cups Saddle Loops (Required) ) found on frames builtOriginal 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