The SW-19 offers an extra long reach (3.25"/ 8.5m) for those deep section aero rims. Featuring our dual-density ergonomically-designed screwdriver handle.

The SW-17 offers an extra long reach (3.25"/ 8.5m) for those deep section aero rims. Featuring our dual-density ergonomically-designed screwdriver handle.

The Master Spoke Wrench is an investment cast workhorse poured from the best steel, precisely machined, heat treated for hardness, then polished and plated.

For high profile rims. An advantage of this extension is the application between the valve stem and the valve itself. Protruding from the rim is the valve, not the extension. Ease of inflation, adjustment of tire pressure or deflation. Extensions are equipped with an o-ring seal, self-deflation is not possible.