S3 - Vertigo / JTG Cylinder Head Inserts (Fits Original Head) 250 / 300cc

As low as £59.95
In stock %1 in stock
Part Number
ST-6**
S3 replacement inserts to fit the standard head on the Vertigo and Jotagas trials bikes.

Available in Low & High Compression

The primary use of the Red higher compression heads are when riding at high altitude due to the air being less dense, they can also be used to increase the torque of the engine but be careful as raising the compression to much may lead to pre-ignition (pinking) and detonation which can damage your engine, a higher octane fuel may be required to prevent this from happening.

The Gold Low compression head is great for riders who want a soft power delivery, it makes the bike easier to ride especially in slippy muddy conditions. Great for beginner riders but even some expert riders use these to tame the bike down and make it easier and more forgiving to ride.

250 & 300 cc

ST-620-B (300 LOW)
ST-618-A (300 HIGH)
ST-617-B (250 LOW)
ST-616-A (250 HIGH)
More Information
Manufacturer S3
JotaGas / JGas Part T30M002206B (250cc), T30M002206D (300cc)
Vertigo Part Code V-0616 (250cc), V-0291 (300cc)
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