PROX 420 clip type Chain Master Link

The PROX 07.RC420CL chain master link is a universal part. The master link closes the chain. It's the part to keep in your bag: it lets you repair a chain or fit a new one without a special tool (clip-type), or permanently (rivet-type).

Specifications

• Brand: PROX
• Manufacturer part number: 07.RC420CL
• Pitch: 420

Who is it for?

• Clip bent, cracked or no longer staying in place.
• Master link seals damaged or missing.
• Splitting the chain for servicing or replacement.

Good to know

Always use a master link with the same pitch and from the same series as the chain (same width, same seals). A master link goes on new: never reuse a clip that has already been taken off.

Fitting tips

1. Check that the master link pitch matches that of the chain.
2. On a sealed chain, place the supplied O-rings or X-rings on each side.
3. Clip-type link: fit the clip with its open end facing away from the chain's direction of rotation. Rivet-type link: rivet it with a suitable tool, without crushing the seals.
4. Spin the wheel and check that the link isn't stiff.

Why PROX?

ProX Racing Parts has been supplying engine and clutch parts to motocross riders since 1975, from its headquarters near Amsterdam. According to its catalogue, most of its parts are made in Japan, by manufacturers that also produce parts for the Japanese motorcycle makers.

Spare parts and items to plan

• Drive chain : see the selection
• Chain lube : LIQUI MOLY 400 ml · SCOTTOILER

Frequently asked questions

Clip or rivet?
A clip-type link is easy to fit and remove, ideal for motocross. A rivet-type link is more secure on big bikes and on heavily loaded sealed chains.

Compatibility

Universal part: check the dimensions given before ordering.