The Royal Enfield 148253/D Adjuster, Chain, Assembly is a genuine OEM component used in the rear swingarm and final-drive system of the Royal Enfield 650 Twin motorcycles.
The exact catalogue description is “ADJUSTER, CHAIN, ASSEMBLY.” Royal Enfield parts catalogues list 148253/Dfor both the Interceptor 650 and Continental GT 650 in the rear suspension/swingarm assembly.
The chain adjuster allows the rear wheel position to be adjusted correctly when setting the motorcycle’s drive-chain tension. Proper adjustment is important for maintaining correct chain alignment, consistent drivetrain operation and even chain and sprocket wear.
A damaged, bent, corroded or seized chain adjuster can make accurate chain adjustment difficult. Replacing it with the correct OEM 148253/D assembly helps restore the original rear-wheel adjustment arrangement.
Key Features
- Genuine Royal Enfield OEM Spare Part
- Part Number: 148253/D
- Catalogue Description: ADJUSTER, CHAIN, ASSEMBLY
- Rear Chain Adjuster Assembly
- Rear Swingarm Chain Tensioner
- Helps adjust drive-chain tension
- Helps maintain rear-wheel alignment
- Designed for Royal Enfield 650 Twin
- Compatible with Interceptor 650
- Compatible with Continental GT 650
- OEM-specification replacement
- Suitable for chain and sprocket servicing
- Sold per piece
Compatibility
Royal Enfield 650 Twin
- Royal Enfield Interceptor 650
- Royal Enfield Continental GT 650
The 148253/D part is listed in the rear suspension/swingarm assembly for both models.
Application
The 148253/D Chain Adjuster Assembly is used at the rear swingarm to control the position of the rear wheel while adjusting drive-chain tension.
It helps with:
- Drive-chain tension adjustment
- Rear-wheel alignment
- Chain alignment
- Maintaining correct wheel position
- Reducing uneven chain and sprocket wear
When to Replace
Replacement may be required if the original chain adjuster is:
- Bent
- Damaged
- Corroded
- Thread damaged
- Seized
- Difficult to adjust
- Unable to maintain correct chain alignment
- Damaged after an accident or rear-wheel impact
Package Contents
- 1 × Royal Enfield 148253/D Chain Adjuster Assembly
Quantity
1 Piece
Important: The Interceptor 650 and Continental GT 650 normally use two chain adjusters, one on each side of the swingarm. This listing is for one piece only.
Installation
Professional installation is recommended.
- Secure the motorcycle properly.
- Loosen the rear-wheel/axle arrangement as required.
- Remove the damaged chain adjuster.
- Install the new 148253/D chain adjuster in its original position.
- Ensure the adjuster is seated correctly.
- Adjust the rear-wheel position evenly on both sides.
- Set the drive-chain slack according to the motorcycle manufacturer’s specification.
- Check rear-wheel alignment.
- Tighten all hardware to the specified torque.
Important: Both sides should be adjusted evenly to maintain proper rear-wheel alignment.
Product Specifications
| Specification | Details |
|---|---|
| Brand | Royal Enfield |
| Part Number | 148253/D |
| Product Type | Chain Adjuster Assembly |
| Catalogue Description | ADJUSTER, CHAIN, ASSEMBLY |
| Application | Rear Swingarm / Drive Chain |
| Compatible Models | Interceptor 650 & Continental GT 650 |
| Quantity | 1 Piece |
| Category | Genuine OEM Spare Part |
Genuine OEM Information
Part Number: 148253/D
Description: ADJUSTER, CHAIN, ASSEMBLY
Application: Royal Enfield Interceptor 650 & Continental GT 650
Quantity: 1 Piece









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