Shimano Dura-Ace bottom bracket, hailing from Japan and in production from the 1980s to the 1990s (yet still new & unuséd 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 authentic, but also great for any other compatible bike. The very first Dura-Ace bottom bracket axles were stamped '333' with a date code that is specific to early Dura-Ace. The axles came with the GA-100 chainset but the specification remained the same when the FC-7110 chainset was introduced, so they are compatible with both models. .
