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S3 "Extreme" cylinder head kit for Beta RR/Xtrainer 300 2T from 2013 to 2017 (Flat top piston)
A kit developed for Extreme Enduro riding, where the control of power, with all the better touch and helping in power delivery with:
• Greater Traction
• Elastic and progressive motor
• More control in your piloting
• Ideal for Extreme
In addition, the S3 cylinder head provides thanks to its design:
• Temperature reduction
• Lightness as a whole
• Spectacular look
Includes: Extreme nock, cylinder head and set of o-rings