• 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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Shipping calculated at checkout.

Maximize performances by making sure your chainline is dead center! 

GAUGE42A is an aluminum gauge that checks your 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.

Precision machined profile for easy use. It allows to keep the gauge vertically on the tube, allowing for more accurate work. The three measurement lines are made by CNC machining with 1/100th tolerance level.

More Info

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

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    All our products carry a limited warranty from the manufacturer.
    Please refer to the Warranty section to get more details about the warranty that applies to your products.