Here is the strongest crankshaft from ARTEK for your DERBI EURO 3 and 4. a reinforced, balanced model is in full masses, it is really intended for the reinforcement of the low engine and the performance, it is certainly the most studied crankshaft of the market.
What are the differences with the K1? The connecting rod, the materials used, the tolerance to high speeds .... More clearly the reinforcement and the balancing which are even more neat!
The steels used are of the highest quality, they are treated and well hardened, the balancing is dynamic and really neat! The connecting rod is a very high-end model lightened in H with grease at the head and small end.
It is placed on a reinforced crankpin of 18 mm against the original 16 and a well increased cage with anti-friction wedges. Clearly, this crankshaft will withstand most very equipped engines. Capable of going up to 18,000 revolutions, it will hold without worry on an 80cc MHR TEAM with internal rotor ignition for example.
Characteristics:
-Masses: full
-Soies (bearing seats): in original diameter Ø20mm
-Reinforced connecting rod original size 90mm
-Original stroke 40.00mm
- Keying: yes
-Delivered with its needle cage
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