Culasse TRS 300 dome seul - comprimé 300B

S3 Original.

The specific design of the inserts—offering varying compression levels—allows you to tailor the engine's behavior to your riding style! 

• Compatible with the stock cover. 
• Note: This is a low-compression cylinder head with long-reach threads; using a BPR5ES spark plug is mandatory! 
• Supplied with gaskets. 
• Gold finish.

What do the inserts change? 

• Low compression (B): Phenomenal traction; ideal for muddy terrain and for taming overly powerful engines. A delight to ride! 
• Standard compression (STD): More torque and power at low RPM; even though the compression ratio is similar to stock, you will notice the difference! 
• High compression (A): Ride a gear higher, gain traction, and enjoy precise engine response—all while keeping the bike very easy to control.
• Very high compression (AA and AAA): Primarily for altitudes above 1,000 meters