Boîtier de Pédalier SHIMANO BB-UN55 73 mm - 122,5 mm Axe Carré
Shimano Boîtier de Pédalier Carré BB-UN300 - bike-components
BOITIER AXE PEDALIER Shimano Bb Un55 Old Bike Vecchia Bici Velo Ancien EUR 10,00 - PicClick FR
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
Shimano Vis de la Manivelle pour BB-UN26 / BB-UN55 Palier de Pédalier Carré - Y15507000