SEVEN DAY CYCLIST
CYCLING, BUT NOT USUALLY RACING

I’ve also carried ours on my Univega’s magnetic Fidlock bottle holder. Now the chain checking function couldn’t be simpler and this is both pro and con in equal measure.

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Performance 3/5

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Very simple to use, although the chain checking pin is less refined compared with similar designs we’ve used in the past. If you’ve not used a checker before, slot the shallower pin into the links and see how far the pins sink. 

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If the tool lies flat, your chain needs replacing. Checked periodically, chains can be pensioned before they reach this stage and eat into other components. Especially 9,10, 11 and 12 speeds, which work to closer tolerances.

 

Depending upon conditions, season and lube(s) used, I typically get 1250 useful miles from a 10speed chain before microscopic wear causes shifting to go slightly “off”.   Replaced at .75, wider component wear is swerved, and money saved.

Detecting this on the Kranx requires a keener eye, so not for lazier/time poor mechanics. Otherwise, it has given good insight into chain health across the fleet-single speed, 6,7,8 and 9 speed. The chain joining “horns” are similarly effective, at least on the 1, 6,7, 8, 9 and 10 speeds I’ve tested. 

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Finish quality is better than I was expecting. I’ve left ours in slightly soggy wedge and frame packs with no signs of tarnish. Oily residue and periodic wipe-overs with faintly oily rags have probably helped.