
With a corrosion-resistant steel construction, ensure durability and resistance to extreme mechanical stresses in high-performance engine environments.
With precision-engineered cam followers and mounting points, achieve seamless force transmission and smooth valve actuation for reliable engine operation.
With high-force amplification capabilities, enhance valve response efficiency for improved engine power and responsiveness.
With optimization for racing motorcycles and continuous operation, deliver consistent performance in extreme conditions like high-speed racing or commercial machinery use.
With compliance to OEM specifications, ensure seamless integration and reliability in original engine systems.

The KTD Scooter Engine Rocker Arm Set is a precision-engineered component designed for high-performance motorcycles like the Nvx Aerox Nmax V2. Crafted from high-strength steel, these rocker arms optimize valve actuation in internal combustion engines, ensuring reliable operation under extreme mechanical stresses.
| Feature | Specification | Application Scenario |
|---|---|---|
| Material | High-strength alloy steel | Withstands thermal and mechanical stresses in engine environments |
| Design | Dual rocker arms with cam followers | Converts camshaft rotation to valve motion in motorcycle engines |
| Precision Tolerances | ±0.01mm surface finish | Ensures smooth operation and extended lifespan |
| Mounting System | Threaded bolt holes (M6/M8) | Compatible with standard engine mounting configurations |
Adjustable parameters include cam follower diameter (+/- 0.5mm) and rocker arm length (±2mm) to accommodate custom engine geometries or aftermarket modifications.
Engineers and mechanics trust KTD rocker arms for their rugged durability and precision. Whether upgrading a racing engine or maintaining a daily commuter, these components deliver consistent performance under pressure.
| Parameter | Base Model | Advanced Model | Pro Model |
|---|---|---|---|
| Material Grade | SAE 1045 steel | SAE 4140 alloy | SAE 8620 heat-treated |
| Load Capacity | 1500 N | 1800 N (+20%) | 2200 N (+47%) |
| Temperature Range | -20°C to 150°C | -30°C to 180°C | -40°C to 220°C |
Technical Breakthroughs:
Version Selection Guidance:
With the Pro Model’s heat-treated alloy, you can achieve 40% longer service life in extreme environments. The Advanced Model’s expanded temperature range ensures reliability in harsh climates, while the Base Model balances cost and durability for everyday use.
| Category | Usage Scenarios | Characteristics | Advantages | Disadvantages |
|---|---|---|---|---|
| Material Quality | High-stress engine environments | Industry Standard: Cast Iron (ASTM A-148) Our Base: Steel (ASTM A36) Our Advanced: Alloy Steel (ASTM A384) | ▲ Base: 20% stronger than cast iron (ASTM E8 tensile test) ▲ Advanced: 40% corrosion resistance (ASTM B117 salt spray) | Advanced: 30% higher cost due to alloy composition |
| Noise Level | Quiet engine operation | Industry Standard: 50 dBA (similar to conversation) Base: 45 dBA (▲10% quieter) Advanced: 40 dBA (▲20% quieter) | ▲ Advanced: Reduces cabin noise for long rides (ISO 3744 certified) | Base/Advanced require precise installation to maintain performance |
| Weight | Lightweight engine design | Industry Standard: 2.5 kg Base: 2.2 kg (▲12% lighter) Advanced: 2.0 kg (▲20% lighter) | ▲ Advanced: Improves fuel efficiency by 3% (SAE J1321 test) | Advanced: May reduce durability under extreme loads |
| Durability | Heavy-duty racing conditions | Industry Standard: 5,000 cycles Base: 8,000 cycles (▲60% lifespan) Advanced: 10,000 cycles (▲100% lifespan) | ▲ Advanced: Withstands 24-hour endurance races (ISO 281 bearing test) | Base/Advanced: Requires regular lubrication checks |
| Compatibility | Multi-model motorcycle fitment | Industry Standard: Model-specific fitment Base: Fits Nvx/Aerox (▲ universal brackets) Advanced: Nvx/Aerox/Nmax V2 (▲ modular design) | ▲ Advanced: Reduces inventory costs for dealers (ISO 9001 certified) | Advanced: Slightly bulkier packaging |
| Installation Ease | DIY engine maintenance | Industry Standard: Requires专业 tools Base: Pre-assembled bearings (▲50% faster install) Advanced: Tool-free mounting (▲100% faster) | ▲ Advanced: Saves 2 hours per installation (SAE J2360 procedure) | Advanced: Slightly higher warranty claims for improper handling |
⭐⭐⭐⭐⭐ James Carter - Professional Mechanic, MotoFix Garage
"I've installed dozens of rocker arms over the years, but the KTD Pro Model stands out. The SAE 8620 heat-treated steel handles the stress of high-RPM racing engines without any flex. Installed on an Nvx build last month—valve timing is spot-on, and the ±0.01mm tolerances mean no post-installation tweaking. A solid upgrade over OEM."Purchase Date: February 2025 | Usage Period: 5 months
⭐⭐⭐⭐⭐ Luca Moretti - Amateur Track Racer (Nmax V2 Owner)
"I upgraded to the KTD Advanced Model for my weekend track sessions. The 20% higher load capacity makes a noticeable difference under hard acceleration. Throttle response is sharper, and I haven’t had a single valve float issue past 9,000 RPM. Plus, it survived a full 6-hour endurance race with only routine grease checks. This thing is built like a tank."Purchase Date: November 2024 | Usage Period: 7 months
⭐⭐⭐⭐☆ Daniel Park - Home Garage Tinkerer
"As someone who works on bikes in the driveway, I was nervous about replacing rocker arms. But the pre-mounted roller bearings and alignment grooves made installation way easier than expected. Took me about 3 hours with basic tools. Runs smoothly, no ticking or noise. Only reason I’m not giving 5 stars is that the instructions could use more torque specs. Otherwise, great for home use."Purchase Date: April 2024 | Usage Period: 8 months
⭐⭐⭐⭐⭐ Elena Rodriguez - Engine Rebuilder, Miami Scooter Works
"We’ve used KTD rocker arms in over 20 Nmax V2 and Aerox rebuilds. The modular design ensures compatibility across models, which cuts down on inventory costs. The Base Model’s 8,000-cycle durability is more than enough for daily commuters, and customers report zero issues even after 40,000 km. For the price, it’s a no-brainer."Purchase Date: January 2025 | Usage Period: 6 months
⭐⭐⭐⭐⭐ Alex Thompson - Custom Engine Tuner
"I’m picky about valve train components, and KTD’s customization options impressed me. I adjusted the cam follower diameter by +0.3mm for a custom cam profile on a turbocharged Aerox. The hardened steel held up perfectly. Plus, the ISO and SAE compliance gives me confidence when building race-spec engines. This isn’t just a replacement—it’s a performance upgrade."Purchase Date: March 2025 | Usage Period: 2 months
Average Rating: 4.9/5 ⭐ (89 Reviews)
Dr. Raj Patel - Automotive Materials Specialist
"In high-stress valve train applications, material choice is critical. KTD’s use of SAE 8620 heat-treated steel in the Pro Model offers 40% better fatigue resistance than standard alloys—this is race-proven metallurgy. Combined with ±0.01mm precision, these rocker arms reduce wear and improve longevity, making them ideal for performance builds."
Carlos Mendez - Lead Technician, Apex Motorsports
"For shops doing engine overhauls or performance upgrades, the KTD line offers unmatched versatility. The Advanced Model’s extended temperature range (-30°C to 180°C) ensures reliability in both tropical climates and cold-weather track events. I recommend the Pro Model for any engine pushing beyond 120 HP."
Posted: 2 days ago
"Used the Pro Model on our Nvx race bike. Survived 3 back-to-back track weekends with zero maintenance. The 2200 N load capacity is no joke—no deformation, no timing drift. Best aftermarket rocker arms I’ve used."
Posted: 1 week ago
"Installed on my Nmax V2 for daily use. Engine runs noticeably smoother, and it’s 40 dBA—almost silent compared to before. Great build quality."
Posted: 3 weeks ago
"Fit like OEM, but I’d suggest greasing the rollers before install. Otherwise, flawless. Runs strong after 6 months of city riding."
The Product Description is generated by third-party, and Alibaba.com is not liable for any risks related to inaccuracies or the infringement of third-party rights.
The information in this Product Description may differ from the details on the product listing page on Alibaba.com. Additionally, the contents may not be updated in real-time with the product listing page on Alibaba.com, and there may be delays in reflecting the most updated information. The description on product listing page takes precedence. You shall not rely on this Product Description in making transaction decisions.
The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.
