The picture below shows a Chain DID VX Heavy Duty X-Ring. Thousands of other top quality spares listed on our website at refreshingly low prices. >>
DID's VX Chain uses patented X-ring seals. Like O-rings, X-rings function to seal in lubrication and keep dirt out.
Where the cross section of an O-ring is circular, the cross section of an X-ring is 'X' or cross shaped. This gives the seal additional contact points compared to the O ring, offering superior sealing and protection against dirt and grit getting stuck under the seal.
In addition, when under pressure an O-ring becomes squashed and causes friction. An X-ring, when under pressure, diverts this pressure by twisting instead, so an X-ring decreases friction between side plates and reduces power loss by 50% of any other type O-ring chain.
DID's X-rings have 40% greater wear resistance than an O-ring chain and 25 times that of a DID standard chain; this means more resistance to stretching, bowing and warping and smoother handling. With the proper maintenance an X-ring chain will last longer than any O-ring or unsealed chain.
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Sealed chains require lubrication every 500km (300 miles) in order to prevent surface rust and ensure performance.
All prices are in Pounds Sterling (GBP)and include VAT at 20% where applicable. VAT will be deducted at the checkout for goods supplied to outside the European Union.
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