Hero Xtreme 125R Chain Sprocket Kit | Genuine Drive Chain Set | K41412ACLA000S

Hero Xtreme 125R Genuine Chain Sprocket Kit – K41412ACLA000S

Restore smooth and reliable final-drive operation with the Hero Genuine Chain Sprocket Kit K41412ACLA000S for the Hero Xtreme 125/Xtreme 125R platform.

This complete replacement set contains the three primary final-drive wear components: the drive chain, front drive sprocket and rear wheel sprocket. Replacing all three components together helps maintain correct engagement and prevents a new chain from running on excessively worn sprocket teeth.

This product is commonly searched as Xtreme 125R chain set, Xtreme 125R chain sprocket kit, Xtreme 125 chain kit, front and rear sprocket set, final-drive kit and K41412ACLA000S.

What This Product Is

• Hero Genuine complete chain-and-sprocket replacement kit
• Part number: K41412ACLA000S
• Application: motorcycle final-drive system
• Supplied as one complete kit
• Model-specific replacement, not a universal chain set

Key Features

• Genuine Hero MotoCorp replacement kit
• Includes the drive chain and both sprockets
• Designed for correct chain-to-sprocket engagement
• Helps restore smooth power transfer when worn components are replaced
• Suitable for routine drivetrain maintenance and worn-chain replacement
• Reduces the risk of premature wear caused by mixing a new chain with old sprockets
• Correct OEM kit where part number K41412ACLA000S is specified

Confirmed Compatibility

• Hero Xtreme 125 – 2024 application
• Hero Xtreme 125R – 2024 platform
• Hero Xtreme 125R OBD-II – April 2025, where K41412ACLA000S is confirmed

In some export markets, the corresponding motorcycle platform may be sold under the Hero Hunk 125R name. Indian buyers should order using the Xtreme 125R model and exact part number.

Fitment Note / Return Prevention Note

Do not purchase this kit only because the motorcycle has a 125 cc engine. Chain length, pitch, sprocket offset and tooth count can differ across models.

Before ordering, confirm:

• Exact part number K41412ACLA000S
• Hero Xtreme 125/Xtreme 125R model
• Manufacturing year and variant
• Existing front and rear sprocket design
• Chain pitch, length and adjuster range
• Rear wheel and final-drive configuration

No compatibility is claimed for Splendor, HF Deluxe, Passion, Glamour, Super Splendor, Achiever or other Hero motorcycles unless Hero specifically assigns the same kit to the exact vehicle.

What You Will Receive

• 1 x Drive chain
• 1 x Front drive sprocket
• 1 x Rear wheel sprocket
• Hero Genuine kit part number K41412ACLA000S

The following are not included unless present inside Hero’s sealed package:

• Front sprocket lock plate or retaining bolt
• Rear sprocket nuts or bolts
• Rear wheel dampers
• Chain adjusters
• Chain lubricant
• Chain cover or chain slider
• Installation labour

Technical Details

When Replacement May Be Required

• Frequent chain adjustment is required
• The chain has tight and loose spots
• Sprocket teeth are hooked, pointed or unevenly worn
• The chain produces excessive noise despite correct lubrication
• The chain can be pulled excessively away from the rear sprocket
• Links are seized, rusted or damaged
• The service-limit measurement has been exceeded

Installation Note

Installation should be performed by a trained motorcycle technician.

The technician should:

• Replace the chain and both sprockets together
• Inspect the front sprocket retainer and rear sprocket fasteners
• Inspect the wheel dampers, chain slider and chain guides
• Set rear-wheel alignment correctly
• Adjust chain slack to Hero’s specification
• Tighten the front sprocket, rear sprocket and rear axle correctly
• Lubricate the chain after installation when required
• Recheck chain slack after the initial running period

An over-tight chain can damage the chain, sprockets, output-shaft bearing and rear suspension movement. An excessively loose chain can jump, strike surrounding components or come off the sprocket.

Buyer-Focused FAQs

Q1. What is Hero part number K41412ACLA000S?
It is a Hero Genuine complete chain-and-sprocket kit for the Xtreme 125/Xtreme 125R final-drive system.

Q2. What is included in the kit?
The kit includes one drive chain, one front sprocket and one rear sprocket.

Q3. Should the chain and both sprockets be replaced together?
Yes. Replacing the complete set provides correct engagement and helps prevent premature wear.

Q4. Is this only the chain?
No. This is the complete chain sprocket kit, not a chain-only listing.

Q5. Will it fit every Hero 125 cc motorcycle?
No. It is model-specific and should be used only where K41412ACLA000S is confirmed.

Q6. Does it fit the Hero Xtreme 125R?
Yes. The Xtreme 125/Xtreme 125R platform is the confirmed Indian application for this kit.

Q7. Does it fit Splendor, HF Deluxe, Passion or Glamour?
No compatibility with those models is claimed. They commonly use different chain-and-sprocket kits.

Q8. Are sprocket nuts and locking hardware included?
Do not assume they are included. Only the parts contained in the sealed Hero kit are supplied.

Q9. Is professional installation required?
It is strongly recommended because chain slack, wheel alignment and fastener tightening directly affect safety and drivetrain life.

Q10. How should chain life be maintained?
Keep the chain correctly adjusted, clean and lubricated, and inspect it regularly for tight links, rust and abnormal sprocket wear.