DX Swing Arm Review: Shaving Weight for Maximum Agility on Your CRF and KLX
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| DX Swing Arm for CRF150L |
When it comes to off-road performance, there is a golden rule that every professional rider follows: Simplify, then add lightness. While heavy-duty steel components have their place, excessive weight is the enemy of speed, handling, and suspension efficiency.
If you feel that your Honda CRF or Kawasaki KLX feels a bit "sluggish" in the rear, the problem might not be your engine—it might be your stock swing arm. Today, we’re looking at a solution that balances affordability with high-end performance: the DX Aluminum Swing Arm.
The Engineering Behind the DX Series: Lightness Meets Strength
The philosophy behind the DX Swing Arm is straightforward: provide a racing-grade component that outperforms factory parts without the astronomical price tag of full-billet exotic arms.
1. Superior Power-to-Weight Ratio
The standout feature of the DX arm is its weight—or lack thereof. Coming in at just 2.8 kg, it is significantly lighter than the heavy, cast-iron or steel arms that come standard on many 150cc to 250cc dual-purpose bikes.
In the world of motocross, this is known as reducing Unsprung Mass. By shedding weight from the swing arm, your rear shock absorber doesn't have to work as hard to control the wheel's movement. This results in:
Faster Suspension Response: The wheel can track small bumps more accurately.
Increased Traction: Better contact with the ground means more power is translated into forward momentum.
Reduced Rider Fatigue: A lighter bike is simply easier to toss around on tight single-track trails.
2. High-Quality Welding & Structural Integrity
Unlike "no-weld" CNC arms, the DX uses a traditional reinforced welding method. However, do not let the word "welding" fool you. The welds on the DX series are exceptionally clean, deep-penetrating, and reinforced at high-stress points. This ensures that the arm remains rigid under the massive torque loads of hill climbs and the jarring impacts of flat landings.
Geometry Options: Tailored to Your Riding Style
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| DX Swing Arm 66Cm for KLX 150 |
One of the best things about the DX Swing Arm is that it doesn't offer a "one size fits all" approach. Riders can choose between two distinct lengths depending on their specific discipline:
The 60cm Version (Agility Specialist): This is the ideal choice for Enduro and Hard Enduro riders. A shorter wheelbase keeps the bike "flickable," allowing you to navigate tight switchbacks and technical obstacles with ease.
The 66cm Version (Stability Specialist): If you are building a Supermoto or a high-speed desert sled, the 66cm version is your best friend. The extended length increases the wheelbase, providing much-needed stability at high speeds and preventing the front end from lifting too easily under hard acceleration.
Clean, Minimalist Aesthetics
The DX Swing Arm is available exclusively in a Brushed Silver finish. This isn't just a stylistic choice; it's a practical one. In the harsh environment of off-road riding, paint chips and anodized coatings can scratch easily. The natural silver alloy of the DX arm hides trail "battle scars" much better than darker colors, ensuring your bike looks "factory-fresh" for longer.
Universal Fitment for the "Big Two"
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| DX Swing Arm Install On CRF 150L |
The DX was engineered with the most popular platforms in mind. It is a direct bolt-on upgrade for:
Honda CRF 150L: Transforms the bike from a soft trail explorer into a sharp-handling machine.
Kawasaki KLX 150 (all variants): The perfect remedy for the heavy OEM steel arm.
The tolerances on the pivot points and axle sliders are tight, ensuring that you won't have to deal with annoying "slack" or alignment issues during installation.
Pricing and Global Shipping Logistics
For riders looking for the best "bang for their buck," the DX Swing Arm hits a sweet spot in the market.
Retail Price: $155 USD
At this price point, it is one of the most cost-effective ways to improve your bike's handling. However, please keep these points in mind before ordering:
Exclusions: The $155 USD price is for the component only. Shipping costs are not included and will be calculated based on your specific country.
Dynamic Pricing: Due to the fluctuating costs of aluminum and international logistics, prices may change without prior notice.
Weight Advantage: Because the arm only weighs 2.8 kg, international shipping is often more affordable than shipping heavier steel alternatives.
Reviewer’s Maintenance Tips
To keep your DX Swing Arm in top condition, I recommend a few simple habits:
Axle Alignment: Always use a torque wrench to tighten your rear axle. Even though the alloy is strong, over-tightening can put unnecessary stress on the adjustment blocks.
Chain Slider Check: Since you are likely to be riding harder with a better arm, check your chain slider every few months. A worn-out slider can lead to the chain rubbing directly against the alloy.
Regular Cleaning: A simple wipe-down with a non-acidic cleaner will keep the silver finish looking bright and prevent mud from baking onto the surface.
Conclusion: Is the DX Swing Arm the Right Choice?
If you are a rider who values functional performance over flashy colors, the DX Swing Arm is an incredible choice. It solves the biggest problem of entry-level trail bikes—weight—while providing the strength needed for serious off-roading.
For $155 USD, you are getting a component that makes your bike lighter, more stable, and more responsive. It is a smart, calculated upgrade for anyone serious about their CRF or KLX.
Which setup are you running? Are you looking to keep it tight with the 60cm arm for the woods, or going long with the 66cm for the streets? Let us know in the comments!
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