What Are OEM Parts?
OEM stands for Original Equipment Manufacturer. These are the parts made by—or for—the company that built your motorcycle. So, if you ride a Ducati, OEM parts would come directly from Ducati or a manufacturer they’ve partnered with.
These parts are built to match factory specs. They're essentially what your bike came with when it rolled off the production line. And while that may sound like the safest option (and often is), it’s not always the most exciting—or the most cost-effective.
BMW M1000RR 2023 high-performance racing kit
What Are CNC Racing Parts?
CNC Racing is a high-end Italian manufacturer known for producing precision aftermarket motorcycle components. Specializing in brands like Ducati, MV Agusta, and Aprilia, CNC Racing parts are crafted using CNC (Computer Numerical Control) machining—meaning each part is carved out with extreme accuracy using advanced software and tooling.
Unlike OEM parts, which are often mass-produced, CNC Racing parts are typically made in smaller batches with performance and aesthetics in mind.
Performance: Which Delivers More?
This is often where CNC Racing steals the show.
OEM parts are engineered for reliability and general use. They work well enough for everyday riding, but they’re not necessarily optimized for track days, racing, or high-performance upgrades.
CNC Racing, on the other hand, focuses on performance enhancement. Their parts are lighter, stronger, and often designed to improve aerodynamics, braking feel, or engine response. For example, CNC Racing’s rearsets are not only adjustable (unlike most OEM options) but also made from aircraft-grade aluminum, reducing weight without compromising strength.
Real-World Example:
A Ducati Panigale V4 owner swapped his OEM clutch cover for a CNC Racing billet aluminum version. Not only did it improve heat dissipation during long rides, but it also gave the bike a more aggressive, custom look—without sacrificing protection.
Design and Aesthetics
Let’s be real—if you’re into motorcycles, looks matter.
OEM parts are designed to appeal to the masses. They’re consistent, safe, and neutral. But they rarely stand out.
CNC Racing parts, on the other hand, often look like they belong on a MotoGP bike. Whether it's a brake fluid reservoir in anodized red or a carbon fiber engine cover, these parts can elevate your bike's aesthetic without looking gaudy or out of place.
You’ll find parts available in multiple colors, finishes, and styles—perfect for riders who want their bike to reflect a bit more personality.
Durability and Quality
Here’s where it gets interesting.
OEM parts are built to last within a certain usage range. They go through rigorous testing to meet manufacturer standards, which is reassuring. But they’re often made from more affordable materials to keep production costs low—think pressed steel or plastic.
CNC Racing parts are typically made using high-grade aluminum, titanium, or carbon fiber. Thanks to CNC machining, the tolerances are incredibly tight, reducing wear over time and enhancing overall durability. That makes them ideal for riders who push their bikes to the limit.
Compatibility and Installation
One of the biggest concerns with aftermarket parts is whether they’ll fit properly. OEM parts, obviously, are built to fit your specific model perfectly.
However, CNC Racing’s reputation is built on exact-fit components, often tested on the actual bikes they’re designed for. Their parts usually come with detailed instructions and are plug-and-play for most applications. Still, for more advanced upgrades like rearsets or clutch systems, you may want to get help from a professional mechanic—especially if you’re not too handy with a wrench.
Cost: Is One Option More Affordable?
On the surface, OEM parts might seem cheaper. That’s not always the case, though.
Because they’re mass-produced and sold through official dealers, OEM parts sometimes come with a markup that doesn't reflect superior performance or quality—just the brand name.
CNC Racing parts can be a bit pricier, but they often deliver more value per dollar. You’re paying for enhanced performance, premium materials, and unique design—things that often don’t come standard with OEM parts.
In some cases, CNC Racing can actually save you money in the long run. For example, stronger brake levers or engine sliders may help you avoid serious (and costly) damage in a low-speed drop.
When to Choose OEM Parts
There are definitely situations where OEM parts make sense:
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You're restoring a bike to its original showroom condition.
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You want a hassle-free, exact replacement without guesswork.
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You're still under factory warranty and don’t want to risk voiding it.
You should go with CNC Racing when:
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Performance and weight savings matter.
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You want to personalize the look of your motorcycle.
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You ride aggressively or take your bike to the track.
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You value precision, craftsmanship, and Italian design.
Final Thoughts: It’s Not One or the Other
Here’s the kicker—you don’t have to pick a side.
Many riders opt for a blend of both. They stick with OEM for core engine components or electronics, and upgrade to CNC Racing for things like rearsets, levers, covers, and foot pegs. It’s all about what you want from your bike—performance, looks, reliability, or all of the above.
The beauty of motorcycles is that they’re an extension of who we are. CNC Racing gives you the tools to express that with boldness, precision, and flair. OEM keeps things grounded in reliability and factory-tested safety.
BMW S1000R 2013 to 2016 high-performance naked bike parts
Actionable Insights
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For the casual commuter: OEM parts are usually the safer, more cost-effective option.
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For the weekend warrior or track day enthusiast: CNC Racing will likely give you the edge you’re looking for.
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Mix and match: Don't be afraid to combine both worlds. Use OEM for internal parts and CNC Racing for performance upgrades and styling.
At the end of the day, your ride should reflect you. Whether you’re chasing lap times or just want to turn heads at your next meetup, the choice between CNC Racing and OEM parts is less about right or wrong—and more about passion and purpose.