Pay in 4 interest-free payments of $37.50 Learn more
Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
• 9 retention points secure lens in frame
while maintaining FMF's signature sound and quality
-Massive Power gains throughout the RPM range
The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams
Fatty 024034 BETA-250RR-2025 • 9 retention points secureWith well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance. The Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low end, more mid, and increased over rev. No matter what type of riding you do, the Fatty has the benefits youre looking for. More tractable power, improved throttle control Provides power gains throughout entire power band
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