Connector Shimano Di2 BSM-CJ40 Junction 4 Port internal wire

SHIMANO is probably one of the most famous and popular manufacturers of quality bicycle parts and accessories in the world. Parts from this manufacturer are more or less used in most of the bicycles Founded in 1921 in Japan, the company currently has perhaps the widest range of products for both amateurs and professionals. Every year, innovations are introduced that allow cyclists to shift gears more precisely, brake more efficiently or finish the track faster. Currently the company is expanding the offer of electronic gear shifting mechanisms and electric bicycle parts more and more. The range of products is not limited to bicycle parts, clothing for cyclists is offered as well.