K-Tool Chain Breaker and Riveter Tool Kit

The K-Tool is the complete Cam and Drive Chain Breaker and Riveter Set for use on Motorcycle, ATV and small Engine chains.

2x3 to 4x5 Silent chains,

25 to 270 Bushed chains,

415 to 630 Standard O and X Roller and Sealed chains.

After grinding back the Mushroom Pin Head.

Removes Chain Pins and Breaks Cam and Drive chains.

Joins and Installs riveting pins on Cam or Drive chains always use a new and the correct joint link to suit.

The following is included in the K-Tool Drop-Forged Chain Carry Case Kit:

Chain Press: 85 x 43 x 17 mm

3x Drive Link Pins: 2.20mm. 2.90mm. 3.80mm.

2x Anvils: 3.00mm. 6.00mm

Pin Guides: 2.20mm upper. 2.20mm lower + a Riveter Pin

TECH TALK

What are O Ring and X Ring chains?      

X Ring chain         O Ring chain

There are three principal types of roller drive chains: non O Ring, O Ring and X Ring.

The non O Ring types date back to the beginning of time and are still used extensively today. They are strong, light, cheap to produce and relatively friction free but they do not have internal lubrication, so they tend to wear out more quickly.

These days they tend to be used most on smaller capacity and Moto X bikes.

As motorcycle technology and power output has increased, chain design has had to improve with it.

So for bigger and more powerful bikes, non O Ring chains have been very much superseded by O Ring and X Ring chains. These position a sealing ring between the inner and outer chain plates.

Before riveting in the factory, the internal parts of the chain are filled with chain grease by vacuum.

The sealing rings then have two purposes: to keep the internal lubrication in, and to keep the dirt out, thus vastly improving the durability of the chain.

O rings were available first and the ring is literally O shaped. As the two plates push on either side of the O ring, it distorts to have two flat sides to its shape. This is great for sealing and great for most uses but it creates considerable friction which saps the bike's power.

That in turn led to the development of X Ring chains. X describes the shape of the ring. Instead of having an O shape it now has an X shape. This means that when pressed between the chain plates, it no longer has a flattened O ring shape but instead has two smaller faces touching either plate in an X shape. This gives you the same great sealing and durability but now with very low friction. The perfect chain!