Metrakit Prorace Crankshaft – Derbi Euro 3 & 4

Looking to push your Derbi engine harder? The Metrakit Prorace crankshaft with a 39 mm stroke is built for 50, 70 and 80cc kits, its dynamic balancing keeps everything smooth even at full revs.

Compatibility:

Direct fit for Derbi Euro 3 and Euro 4 engines.

Benefits:

• 📈 39 mm stroke sized for 50, 70 and 80cc kits, get the most out of your racing cylinder
• 🎯 Precision dynamic balancing for a smooth power band with minimal vibration
• 🔧 Best value in the Metrakit Prorace racing range
• 🛡️ Direct fit on Derbi Euro 3 and Euro 4, no modifications needed