FMF Fatty Pipe

Fits The Following Bikes:

KTM 125 SX 2019-2022
KTM 125 XC 2022
KTM 144 SX 2019-2022
KTM 150 SX 2019-2022

Husqvarna TC 125 2019-2022

GasGas MC 125 2021-2023


KTM OEM replacement part: 50505007100
KTM OEM replacement part: 50505007000

For compatibility with your bike model please check the KTM spare parts catalogue.


With 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 you’re looking for.

-More tractable power, improved throttle control
-Provides power gains throughout entire power band
-Carbon steel with a nickel plated finish for maximum durability
-FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance.
-Can be used with FMF or stock silencer (unless noted)
-Our most popular 2-stroke pipe
-O-Rings Included

NOT FOR USE ON ANY 150 TPI MACHINE -INSTALL ON CARBURETED BIKES ONLY!