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Here is the AIRSAL racing crankshaft. It came out to accompany the high red AIRSAL Xtrem engine for 45mm stroke on DERBI Euro 3 and 4. You can mount it with other cylinder without problems !.
It is of good quality, in full masses in order to offer more pre compression, the red masses prove the presence of a careful and worked balancing. It is equipped with a reinforced connecting rod with polished finish. The connecting rod rests on a reinforced increased cage, a crank pin with an increased diameter of Ø18mm as well as anti-friction shims.
Its balancing is not specifically made to accommodate the famous high engine Xtrem. Clearly, it is a very good long stroke crankshaft, not a performance monster far from the but a very good quality / price ratio.