Top Performance Upgrades for Your 2024–2025 KTM 65 SX, Husqvarna TC 65, and Gas Gas MC 65
Since its inception, Pro Circuit and Mitch Payton’s team have been the benchmark of performance in the AMA 250 Lights class, powering countless champions with industry-leading engineering, innovation, and dedication. Now, that same race-winning technology is available for your 65cc motocross rider.
Stepping onto a 65 is a game-changer with more speed, more control, and way more fun. If you’re riding a 2024–2025 KTM 65 SX, Husqvarna TC 65, or GasGas MC 65, you’re already in the fast lane. These machines share the same performance DNA, which means the upgrades that make one rip will make them all shine.
That’s where the heavy hitters come in. Pro Circuit Works Pipe and R-304 Silencer? Instant horsepower. V-Force 4X Reed Valve? More snap, more torque, more fun. Rekluse Core Manual TorqDrive® Clutch Kit? Harder pulls, smoother shifts, and zero fade when you’re chasing checkered flags. And when it’s time for a refresh, the Vertex OEM Replacement Piston Kit keeps everything in spec like day one.
And don’t forget, keeping dirt out is just as important as making power. That’s why the one-two punch of a Twin Air Air Filter and a PC Racing Pro-Seal Air Filter Gasket keeps your motor breathing clean while you keep the throttle pinned.
👉 If you want your KTM 65 SX, Husqvarna TC 65, or GasGas MC 65 to rip harder, last longer, and look pro, this is the setup. Add it to your cart and experience what champions ride.
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Pro Circuit Works Performance Exhaust Pipe – KTM 65 SX – 0751665 ($264.56 USD)
Take your KTM 65 SX to the next level with the Pro Circuit Works Pipe. Designed for two-stroke engines, this pipe delivers serious horsepower and torque gains across the entire RPM range — whether you’re chasing holeshots or just ripping through the trails. Built with the legendary “Works Look,” it’s as tough as it is fast.
Features:
- Horsepower & torque gains across the full RPM range
- Unplated, oiled metal finish with signature “Works Look”
- Reinforced brackets & stingers prevent cracking
- CNC-machined flange for a precise, leak-free fit
- Stamped high-quality carbon steel, hand-welded seams
- Conforms to KTM 65 SX frame for perfect fit + airflow
Pro Circuit R-304 Silencer – 1151665 – KTM 65 SX / Gas Gas MC 65 ($154.76 USD)
Pair the Works Pipe with the R-304 silencer for the ultimate race setup. This lightweight, shorty silencer boosts power throughout the powerband while giving your 65 an aggressive sound that screams performance. Easy to maintain and completely rebuildable, it’s a favorite among racers.
Features:
- Full-race, shorty silencer = max performance for closed-course racing
- Boosts horsepower across the powerband
- Completely rebuildable with easy end-cap access
- 304 stainless steel intake tube + E-Glass packing for longevity
- Double-walled, tig/mig-welded mounting brackets
Proudly made in the USA
NEW - VFORCE 4X Reed Valve – V4X55 – KTM / GasGas / Husqvarna 50cc–65cc ($133.20 USD)
Unleash instant throttle response and smoother power with the VFORCE 4X Reed Valve. Designed by Moto Tassinari, this system doubles the reed tip surface for better airflow, meaning quicker snap off the line, stronger midrange, and a top-end that just keeps pulling. Whether you’re on a 50 or 65, this bolt-on upgrade transforms your two-stroke into a holeshot machine.
Features:
- Fits all KTM, GasGas & Husqvarna 50cc & 65cc 2-stroke models
- Easy bolt-on installation for immediate power gains
- Doubled reed tip surface = better airflow & response
- Delivers quicker throttle, stronger torque, and smoother midrange
- Outperforms stock clutch components
- Reduces clutch fade & improves lever feel
- Increases oil flow → lower temps, longer clutch life
- Proprietary anti-drag steel drive plates
- Works with stock parts, no mods needed
- Made in the USA
- Heat-treated with T-5 hardening & tempering cycle
- Molybdenum Disulphite skirt coating → quicker break-in + longer life
- Gravity-cast aluminum alloy with 18% silicone (light + strong)
- Kit includes piston, rings, wrist pin & circlips
- Available in precise bore sizes for perfect fitment
- Trusted OEM supplier to KTM
- Dual-bonded foam = maximum airflow + top-level filtration
- Flat foam sealing ring ensures a perfect, leak-free fit
- Compact, efficient design makes swaps and installs quick
- Optimized dead-air space for better throttle response
- Used and trusted by professional racers worldwide
- Fits 2024–2025 KTM 65 SX, Husqvarna TC 65, GasGas MC 65
- Replaces messy air filter grease with a clean neoprene seal
- Provides a superior seal for maximum engine protection + performance
- Gas- and oil-resistant adhesive stays secure in all conditions
- Quick, easy install inside the airbox
- Fits 1997–2023 KTM 65 SX, 2021–2023 Gas Gas MC 65, 2018–2023 Husqvarna TC 65
Rekluse Core Manual Clutch Kit – RMS-7087 – KTM 65 SX (2009–2024) ($629 USD)
Put every ounce of power to the ground with Rekluse’s Core Manual Clutch Kit. Lighter, stronger, and engineered to eliminate slippage, this clutch gives smoother engagement, better oil flow, and less fade — keeping your 65 hooking up even under race heat.
Features:
Vertex OEM Replacement Piston Kit – Cast – KTM 65 SX / Husqvarna TC 65 / Gas Gas MC 65 ($96.95 USD)
When it’s rebuild time, Vertex is the trusted choice — KTM’s own OE supplier for two-stroke pistons. Each piston is heat-treated, coated for fast break-in, and built with premium alloy for strength without excess weight. A must-have for keeping your 65 at factory-fresh performance.
Features:
Twin Air Air Filter – 154528 / 154528X – 2024–2025 KTM 65 SX / Husqvarna TC 65 / GasGas MC 65 ($37.75 USD)
Keep your 65 breathing clean and riding strong with the Twin Air Air Filter. Built with dual-bonded foam, this filter delivers maximum airflow while trapping dirt, dust, and debris before they ever touch your motor. Trusted by pros worldwide, Twin Air is the go-to for serious riders who want reliability, performance, and protection in one package.
Features:
PC Racing Pro Seal Air Filter Gasket – PC65 – KTM 65 SX / Gas Gas MC 65 / Husqvarna TC 65 ($12.95 USD)
Keep filter maintenance simple and your motor breathing clean with the PC Racing Pro Seal Air Filter Gasket. This neoprene gasket eliminates the need for messy grease while creating a perfect seal inside your airbox. More airflow, less hassle, better protection — it’s a no-brainer upgrade for any 65 rider.
Features:
👉 At $12.95, this part is the definition of high-value, low-cost protection — perfect to bundle with the Twin Air Pre-Oiled Filter section when you get to that part.
🏁 Conclusion: Build Your 65 Like the Pros
Upgrading to a 65 isn’t just about stepping up in size — it’s about unlocking a whole new level of performance. From the raw horsepower of a Pro Circuit Works Pipe, to the precision of a Rekluse clutch, to the reliability of a Vertex piston and the snap of a VFORCE 4X Reed Valve, these parts are the difference between just riding and truly ripping.
Protect it all with a Pro Seal Air Filter Gasket, keep your maintenance tight, and you’ll have a bike that pulls harder, lasts longer, and looks as factory as it feels.
👉 Ready to make your KTM 65 SX, Husqvarna TC 65, or GasGas MC 65 ride like a champion? Shop these upgrades today at Moto-House MX — Choice of Champions and your go-to source for performance parts.