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Chain Kit for Aprilia RS4 125 Heavy Duty X-Ring 13/58 Teeth

Chain Kit for Aprilia RS4 125 Heavy Duty X-Ring 13/58 Teeth

SKU: 13-58-136-RS4
GTIN: 4057711193305
Category: RS4 125
Manufacturers: Esjot

Original Gear Ratio: 13-tooth front sprocket and 58-tooth rear sprocket matching OEM specifications.
Heavy-Duty X-Ring Chain: 428 × 136 links, factory pre-lubricated with a tensile strength of 27 kN.
Made in Germany: Front and rear sprockets manufactured from premium Qste 420 and Qste 460 steel.
Diamond Cut Tooth Profile: Precision-machined teeth for smooth operation and accurate power transmission.
High Wear Resistance: Designed for extended service life under demanding riding conditions.
Complete Kit: Includes X-Ring chain, front sprocket, rear sprocket, clip master link and rivet master link.

113,95 €

incl. 19% VAT , plus

Manufacturers recommended retail price: 173,99 €

(Save 34.51%, i.e. 60,04 €)

Low stock level
Delivery status: 1-4 days
Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)

piece

Heavy Duty Chain Kit for Aprilia RS4 125 with X-Ring Chain – Original 13/58 Tooth Gear Ratio

This heavy-duty chain kit has been specifically developed for the Aprilia RS4 125 and matches the original final drive ratio with a 13-tooth front sprocket and a 58-tooth rear sprocket. The kit combines premium German-manufactured drivetrain components with a reinforced X-Ring chain designed for long service life, reliable power transmission, and excellent wear resistance for everyday riding as well as demanding road use.

Replacing the complete chain drive system instead of individual components helps ensure proper engagement between the chain, front sprocket, and rear sprocket. This contributes to smoother operation, reduced drivetrain wear, and consistent power transfer throughout the service life of the components.

Vehicle Compatibility

Model	Model Year	Manufacturer
RS4 125	2021 – Present	Aprilia

Technical Specifications

Original gearing with 13-tooth front sprocket and 58-tooth rear sprocket.
Heavy-duty 428 X-Ring chain with 136 links.
Tensile strength of 27 kN (2.7 tonnes).
Factory pre-lubricated for immediate installation.
Supplied with both a clip master link and a rivet master link.
Reinforced front and rear sprockets.
Premium German brand product.

Precision Engineering – Made in Germany

The front sprocket and rear sprocket are manufactured in Germany using high-quality Qste 420 and Qste 460 steel grades, known for their excellent strength and durability under high mechanical loads.

Centre bores are precision-machined using CNC equipment to ensure accurate fitment. Mounting holes are countersunk and carefully deburred to achieve high manufacturing accuracy and reliable installation.

Diamond Cut Tooth Profile

The sprocket teeth are manufactured using an advanced Diamond Cut production process. This technology creates highly accurate tooth profiles, resulting in smooth chain engagement, reduced vibration, and excellent running characteristics. Radial and axial run-out tolerances remain below 0.1 mm.

If the chain has stretched significantly or the sprocket teeth show visible signs of wear, replacing the complete chain drive assembly helps maintain optimal drivetrain performance and reduces premature wear of new components.

Heavy-Duty X-Ring Chain

The supplied reinforced X-Ring chain is designed for demanding operating conditions. X-Ring seals retain lubricant inside the chain while preventing dirt, moisture, and debris from entering the moving components.

With a tensile strength of 27 kN, the chain is suitable for daily commuting as well as more spirited riding. Factory lubrication ensures smooth operation from the first installation.

Innovative Manufacturing Process

In cooperation with the University of Paderborn, the manufacturer developed an innovative production process for manufacturing sprocket teeth. Compared to conventionally machined sprockets, this technology achieves a significantly higher manufacturing standard with improved dimensional accuracy and enhanced wear resistance.

A worn chain drive can lead to uneven power delivery, increased drivetrain noise, and accelerated wear. Replacing the complete assembly with this heavy-duty chain kit helps restore efficient power transmission and extends replacement intervals.

Package Contents

1 × Reinforced 428 X-Ring chain (136 links)
1 × Rivet master link
1 × Clip master link
1 × 13-tooth front sprocket
1 × 58-tooth rear sprocket

Additional Information

Original final drive ratio: 13/58 teeth.
Installation tools are not included in the package.
Product image is for illustration purposes only.

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