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XzwgYlx Racing secondary transmission gear up kit: Improve acceleration and throttle response

Racing secondary transmission gear up kit 17T/36T +31% for SYM 125 A125Q2 GY6 125cc 150cc 152QMI 157QMJ 4-stroke Replacement parts
4.6
[31% Faster Acceleration]  17T/36T gear ratio improves start-up and acceleration for racing-level performance.
[Model-Specific Compatibility]  Fits SYM Super Duke 125 A125Q2 and GY6 125cc/150cc engines for easy upgrades.
[High-Strength Alloy Gears]  Durable alloy construction resists wear and impact, ensuring reliability under heavy loads.
[Efficient Power Transmission]  Precision-machined gears reduce friction losses and increase power response across speeds.
[Easy Self-Installation]  User-friendly design allows simple replacement, saving time and cost to experience upgrades fast.
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Automotive parts for riders aiming to sharpen launch and acceleration on 125–150cc scooters, with a race‑oriented gearing change that promises a noticeable performance bump. Thrill‑seeking riders gain faster starts and livelier throttle response for track days or spirited runs. Is the XzwgYlx Racing secondary transmission gear up kit the right upgrade for your SYM or GY6 machine?

⚡ At a Glance
  • Acceleration Improvement: Claimed 31% acceleration improvement compared with original gearing
  • Best for: Racing and high-performance riders using SYM Super Duke 125 A125Q2 or GY6 125–150cc engines
  • Not ideal for: Riders who prefer stock gearing characteristics or different performance tuning goals

The kit uses a 17T/36T secondary gear ratio to raise acceleration performance. Precision machining and high-strength alloy construction aim to improve power transmission efficiency and durability.


Stronger starts and crisper throttle response - with a 17T/36T gear ratio

A 17-tooth and 36-tooth gear combination alters secondary transmission gearing and is specified to increase acceleration performance. Precision gear processing reduces friction losses to help deliver torque more effectively to the driveline.

Quicker launches and more immediate acceleration during roll-on and launches. Suitable for riders who want a more responsive feel from stock 125–150cc scooters.

Improved longevity under load - with high-strength alloy construction

Gears are manufactured from high-strength alloy materials engineered for wear resistance and impact tolerance. The material choice and heat treatment contribute to higher load capacity and resistance to surface wear.

Greater durability during intense or sustained use, reducing the risk of premature wear. Useful for riders who regularly push machines in racing or spirited riding.

Quicker upgrade path for home mechanics - with a user-friendly installation design

The kit is designed for straightforward fitting and is described as suitable for self replacement, simplifying the conversion process. Components are matched to common SYM and GY6 layouts to ease installation.

Riders can install the upgrade themselves to experience performance gains without lengthy workshop downtime. The design helps save time and reduces modification costs.

✨ The 4 Key Reasons for XzwgYlx Racing secondary transmission gear up kit
  1. 17T/36T secondary gearing - Deliver more immediate acceleration off the line
  2. High-strength alloy construction - Withstand high-load operation and reduce wear
  3. Precision gear processing - Lower friction losses for more efficient power transfer
  4. Easy installation design - Allow self replacement to save time and workshop fees
📋 Technical Details at a Glance
  • Category: Automotive Parts and Accessories
  • Gear ratio: 17T / 36T secondary gears
  • Performance improvement: Claimed 31% acceleration improvement over original configuration
  • Compatibility: SYM Super Duke 125 A125Q2; GY6 series 125cc and 150cc engines
  • Materials: High-strength alloy
❓ Frequently Asked Questions

Q: Which scooter models is the kit compatible with?

A: Compatible with the SYM Super Duke 125 A125Q2 and multiple GY6 series 125cc and 150cc engines.

Q: How much acceleration improvement does the kit deliver?

A: The manufacturer states the 17T/36T gearing combination can improve acceleration performance by 31% compared with the original configuration.

Q: Can I fit the kit myself?

A: The kit is designed for relatively simple installation and is described as suitable for self replacement to save time and cost.

🏆 Our Verdict

The kit suits riders and tuners who prioritise quicker launches and sharper throttle response on 125–150cc SYM and GY6 scooters. A 17T/36T secondary gear set, precision machining and high-strength alloy construction form the core appeal for racing and high-performance upgrades. While individual budgets vary, the emphasis on durability and easier installation suggests strong long-term value for frequent or performance‑focused riders.