Royal Enfield 570541/B – Flyweight (Sintering) for Auto Decompressor – UCE Models

Restore smooth and reliable starts on your Royal Enfield with the genuine Flyweight (Sintering) – Part No. 570541/A. This component is an essential part of the automatic decompressor system, mounted on the camshaft in UCE engine models. Made from high-strength sintered material, it ensures consistent decompression for easier cold starts and improved starter motor performance.

Key Features:

• Genuine Royal Enfield part – Part No. 570541/A

• Enables auto-decompression for easier engine cranking

• Made of high-durability sintered metal

• Direct OEM fit for UCE models

• Ideal for restoring start-up performance

Compatibility (Verified):
✅ Royal Enfield Classic 350 (UCE – BS3 & BS4)
✅ Bullet 350 UCE
✅ Electra 350 UCE
✅ Thunderbird 350 UCE
❌ Not compatible with Reborn (J-series) or 650 Twins

Package Includes:

• 1 x Flyweight – Sintering (Part No. 570541/A)

FAQs:

Q1. What is the function of this flyweight?
A1. It helps engage the automatic decompression mechanism on the camshaft for easy engine starting.

Q2. Is it used in the clutch system?
A2. No, it is not related to the clutch. It is part of the decompressor assembly on UCE engines.

Q3. Which models does it fit?
A3. Classic 350, Bullet 350, Electra 350, and Thunderbird 350 with UCE engines (BS3/BS4).

Q4. Does it fit the new Reborn Classic or Meteor?
A4. No. These use the newer J-series engine with a different decompression system.

Q5. Should I get this replaced during engine overhaul?
A5. Yes, if your bike is facing self-start issues or weak decompression, this could be the culprit.