Roulement de Direction BLACK BEARING B1 30.15x41x7mm 45/45° 1-1/8" Best it integrates the DIRECT ENGAGEMENT

it integrates the DIRECT ENGAGEMENT technology

5cm XL 32cm 21cm Possible variation of + or - 0

The Shadow RD technology has been integrated to make the derailleur more compact and thus closer to the frame

The "Superflow" central cut-out allows you to relieve pressure in the central zone and benefit from greater comfort during pedalling on your ride

notably from OSIMZ (Russia) and testing institutes in Finland

Roulement de Direction BLACK BEARING B1 30.15x41x7mm 45/45° 1-1/8" Best it integrates the DIRECT ENGAGEMENTThe bearing headset bearing BLACK BEARING B1 1 1 8" 45 45 is a replacement model of equivalent quality to the models originally fitted most of the time on your bike. This bearing consists of angular contact chrome steel balls, a cage also made of chrome steel, and specific seals for headsets.