Primary transmission Aprilia Scarabeo 125/150 4T 18/69 Polini

Primary shaft and primary gear from Polini. Designed and manufactured to be reinforced compared to the original. High penetration hardening that will give it significant surface resistance. The primary shaft is often the one that endures the strain from the transmission belt pulls and the clutch engagements. So, when it cracks, breaks, or we simply want to reinforce it, we now have a good option for replacement.