* MXZ4 is the lightest and strongest MX chain on the market with an impressive tensile strength and a weight of only 1,3 kg (2,89 lb)
* Ideal for professional level, 80cc to 500cc open class racing
* Chains include clip connecting link

XSO:

* Pro X-ring chain lasts five to eight times longer than standard chain
* Provides two more lubricant pools than conventional O-rings for longer life
* Lubricated with specially formulated, vacuum-injected U-grease; locked in by tough Nitrile Butadine rubber X rings
* Polished and shot-peened link plates
* High tensile strength ensures reliable performance
* Chains include rivet connecting link