Model | BB-UN300 |
Type d'axe | Carré, JIS |
Longueur Axe Boitier | 110.0 |
Largeur boitier / longueur axe | 110 |
Type Boitier | BSA BSC |
Diamètre Boite Pédalier | 34.8 |
Largeur Boite de Pédalier | 68 |
Matter | Aluminium |
Bearing type | Acier |
Weight in grams | 260 |
Reference supplier | EBBUN300B10X |
The BB-UN300 square bottom bracket was launched by Shimano to succeed the models BB-UN26 and BB-UN55.
It covers a wide range of areas of use, ranging from bicycles
from hiking and city to old road and off-road bikes.
BB-UN300 is available with BSA thread and in different shaft lengths.
In this type of crankset, the axis of the case and the crankset are connected by a square cone.
Delivery does not include the bottom bracket screw.
Technical informations :
Bearing: steel
Axle: steel
Bushing: aluminum (left), aluminum / steel (right)