Shimano MTB BSA UN-55 Bottom Bracket, Black | Bikeinn
Shimano BB-UN55 Square taper Bottom Bracket 70 x 113mm
Shimano UN55 Square Taper English Threaded Bottom Bracket - Fast Bicycle Shop
Shimano UN55 68 x 113mm Square Taper English Bottom Bracket | Green Mountain Bikes
FAQLoad - Shimano BB-UN55 bottom bracket
Used Shimano BB-UN55 Sealed Cartridge Unit Bottom Bracket 118mm VGC, Road Bike | eBay
BB-UN55 vs BB-UN300; which is the better square taper bottom bracket? - YouTube
What is the difference between this Shimano BB-UN50 and the BB-UN55 ? The former is hard to find for sale, the latter seems to be found everywhere : r/bikewrench