The Shimano Dura-Ace 7410 series bottom bracket was the last square taper BB to be offered with the top of the range group. This version is for Italian thread frames and is the standard 103mm long JIS axle version with the original box. With sealed bearings, a hollow axle and aluminium cups this is as good as square taper bottom brackets get.
- Model: BB-7410
- Italian thread for 70 mm shell frames
- 103 mm JIS taper axle
- Weighs: 228 grams
- Date stamped 1996
- Made in Japan