• Product photo of a track chainline checker
  • Product photo of a track chainline checker, closeup on the label
  • Product photo of a track chainline checker, close-up on the alignment notch
  • Product photo of a track chainline checker
  • Product photo of a track chainline checker, in use on an NJS bicycle frame
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GAUGE42A chainline tool by Runwell

GAUGE42A chainline tool by Runwell

Runwell

$18.00 CAD
$18.00 CAD
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Maximize performances with the best track chainline! The specialized gauge supports self-maintenance for ideal chainlines.

GAUGE42A is an aluminum gauge that verifies chainline by measuring the distance from the seat tube to the chainring. With one line aligned on the center of the seat tube, the center of the chain should fit between the two lines at the edge, within 42 ± 2 mm.

Deeply machined profile for easy application. It keeps the gauge vertically on the tube, allowing for more accurate work. The three cutting lines for measurement are formed by CNC machining with 1/100th tolerance level.

More Info

Length: 80mm × φ13
Weight: 28g
Material: Aluminium

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