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O.S.SPEED R21-M06 Marine Engine - Minicars Special Edition


R21-M06 Marine Engine 3-way

O.S.Speed R21-M06 Marine Engine Minicars Special Edition
This is the new 2025-edition Minicars Marine Special Edition O.S.Speed R21-M06 3.5cc long-stroke competition engine. The R21-M06 has a new piston & liner, new conrod, new crankshaft & ceramic main ball bearing.

New Features (vs the R21-M05 '24):
• DLC coated & balanced R21 Euro-II crankshaft with more timing
• 9-port cylinder liner with 3-port exhaust & piston with 3 oil-grooves
• Ceramic main ball bearing
• Reinforced "R" conrod
• RP6 Turbo plug (instead of RP7)




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