Universal R3-3 MX SRS Chain by Renthal®. Renthal R3-3 O-Ring chains are specially developed utilising Renthal's SRS technology to increase the service life. The special SRS is pre-loaded during assembly, creating a spring effect. As a chain wears, conventional O-rings and X-rings loosen their seal whereas the SRS has the inherent ability to regulate a constant sealing pressure against the side plates throughout the life of the chain. This offers increased longevity, as the specially formulated grease remains encapsulated around the critical pin and bushing area longer whilst preventing ingress of dirt, water and other contaminants.

This premium high strength sealed o-ring chain offers excellent impact load resistance designed specifically to withstand the stress found in offroad applications where an o-ring chain is desired. This chain is the choice where a combination of high strength, lightweight and maximum power transfer are important considerations. The nitrile o-rings help extend the chain life by retaining the special vacuum-injected grease near the critical pin area.

The Renthal R3.3 chain now incorporates Renthals’ SRS ring system (self-regulating seals) increasing chain longevity. The R3.3 chain has been upgraded to the R4 ranges’ proven quad riveting manufacturing process.

The Rivet link has also been changed to a hollow end to facilitate easier installation and like the R3.2, a split link is still included in the box for easy track side fitment.

Renthal R3-3 SRS Chain features:

• SRS Ring technology
• Renthal chain is only in the highest grade possible
• The best material and manufacturing processes are employed to offer the ultimate chain in each discipline
• Perfectly matched with Renthal chainwheels for maximum efficiency and longevity
• High Strength, light weight, ultimate performance
• R3 features O-rings for increased life
• Shot peened side plates allow for high tensile stress with minimum wear
• Expertly crafted from the highest grade materials
• Precise engineering ensures the latest in quality
• Unique, dependable, and functional

SRS™ Technology
Nitrile Self Regulating Seals (SRSTM) retain a special vacuum injected grease around the critical pin and bush area, which extends the life of the chain.

Shot Peened
Shot-peened alloy steel side plates for high tensile strength and maximum impact load resistance.

High Carbon Steel Pins
High carbon alloy steel bearing pins for excellent prolonged resistance to wear, for both road and off road riding conditions.

Special Finish
Special finish: gold coloured side plates and copper coloured rollers help prevent corrosion.

Pre Stretched
To help with an easy setup, each R3 chain is pre stretched meaning adjustments are not required.

Spec
520 pitch only, average tensile strength: R3-3 520 - 7420 lbf

Perfect Match
Most perfectly matched chain for Renthal Chainwheels allowing maximum power at the rear wheel. This also extends the life of both the chain and chainwheels