The FMF Gold Series Fatty Pipe is the go-to choice for 50cc 2-stroke performance. Backed by over 35 years of race development, this pipe is designed to deliver gains across the entire powerband—more low-end torque, better midrange, and stronger over-rev. Whether your young rider is racing or trail shredding, the Fatty adds smooth, tractable power and proven durability.
Key Features
All-Around Power Boost: Improves throttle response, low-end grunt, and top-end pull.
Race-Tested Design: Trusted by pros and weekend warriors alike for broad power delivery.
Durable Construction: Carbon steel body with nickel-plated finish to resist wear and corrosion.
Tru-Flo Stamping Process: Ensures precise fit and consistent performance on every install.
Silencer Compatible: Works with FMF or stock silencers (unless otherwise noted).
O-Rings Included: Everything you need for proper sealing and quick install.
The Fatty is FMF’s most popular 2-stroke pipe for a reason—bolt it on and feel the difference, no matter how your young ripper rides.
Shipping Information
We strive to get your order to you as quickly as possible! Here’s what you need to know about our shipping policies:
Fast Shipping: Most items ship within the same day or within 48 hours of your order being placed.
Custom Orders: Please allow additional processing time for custom or made-to-order products.
Flat Rate Shipping: Enjoy $9 Flat Rate Shipping on all standard orders.
Free Shipping:
Orders over $90 qualify for FREE shipping!
Always FREE shipping on:
ASV Levers
Rough Country Products
S3 Power Sports Products
No Sales Tax Outside Minnesota: Since we only have a tax nexus in Minnesota, sales tax is only collected on orders shipped within MN.
Customers with shipping addresses outside Minnesota automatically save on sales tax—just one more way to get great value!
(Please consult your local tax policies for compliance in your area.)
We’re committed to delivering your products efficiently and reliably. Thank you for choosing us!
Let customers speak for us
from 12 reviews
Great service
Was looking for the limited addition new glory harnesses and sent a message to make sure they had them in stock. Got a quick response and went ahead and ordered he shipped them out next day. Super happy with the service.
Excellent service and reached out to make sure I got what I needed. Got the lever in under a week here in Kentucky. Actually ordered another for another bike because of service.
I was really hoping for this lever to help my 4 year old on his stacyc and it made a huge difference. Closer to the bars, easier for him to squeeze as he is 4 and all around great lever. Super happy with the purchase.
