FMF END OF LINE Fatty Exhaust Pipe 01-08 KTM SX 50 JR - FMF 025091

With decades of race-winning heritage, the FMF Racing Fatty Gold Series pipe sets the standard for proven two-stroke performance. This pipe elevates your KTM 50 SX JR’s output, delivering a smoother and broader power curve for outstanding throttle control. Engineered for racers and all riders alike, the Fatty’s carbon steel construction and nickel-plated finish guarantee relentless durability, while FMF’s precision Tru-Flo stamping process ensures flawless fit and optimal flow characteristics.

Features

• Expands and smoothens overall power delivery across the full rev range
• Enhances low-end, mid-range, and over-rev performance
• Enables more controllable, tractable power for reliable throttle response
• Constructed from robust carbon steel with a long-lasting nickel plated finish
• Utilises FMF’s Tru-Flo stamping for exact fit and peak output
• Compatible with FMF and stock silencers unless otherwise specified
• Includes O-rings for reliable sealing
• FMF’s most popular two-stroke expansion chamber design

Specifications

• Item ID: 025091
• Type: Pipes
• Carb Warning: No

Vehicle Fitment

KTM

• 50 SX JR (2001–2008)

Supplier SKU: 07-M05.FMF.FAT. Supplier availability is subject to change.

Why Buy From FDY Performance?

Shop with FDY Performance Ltd, a UK-based motorcycle parts and accessories retailer. We offer friendly product support and UK delivery options. Please check your bike make, model and year against the fitment information before ordering.