Shimano Dura-Ace (GB-100) 1st Gen NOS Vintage English 112 mm Bottom Bracket Prolite Orders are carefully packed

Orders are carefully packed

Brake Fixing - Cantilever / V-Brake

Wheelbase - measured from the centre of the front fork dropout to the centre point of the rear dropout

Ofmega chainring bolts

Indexing System* - MTB

Shimano Dura-Ace (GB-100) 1st Gen NOS Vintage English 112 mm Bottom Bracket Prolite Orders are carefully packedOriginal part in production from the 1980s to the 1990s New old stock! Still unused after all these years Lightweight for the era just 295 grams Worldwide shipping Shimano Dura Ace bottom bracket, hailing from Japan and in production from the 1980s to the 1990s (yet still new & unused after all this time!). Made from steel and weighing in at 295 grams pretty lightweight for a bottom bracket at that time. A fine choice for keeping your vintage bike