Set of 2 reinforced bearings (riveted steel cage C4) + POLINI crankshaft spy seals for derbi euro engine 1, 2, 3 & 4

Here is the pack bearing and seal spy proposed by POLINI. The bearings manufactured at NTN with an ultra reinforced riveted steel cage in size Ø 20x47x14. It is mounted on DERBI Euro 1, 2, 3 and Euro 4 engines.

Very high end. The bearing is an element not to be neglected! Both for power, for torque, high speeds, engine longevity. The Teflon and Viton oil seals thus allow less friction and therefore less crankshaft braking.

An ideal pack for those looking for the smallest performance parts or even the ultimate.