Unior 1682/4 Star Nut Setting Tool 1" 1.1/8"

The Unior 1682/4 tool inserts the Ahead star nut into the fork steerer tube. It is designed for headset installation or adjustment and works with 1" and 1 1/8" steerer tubes.

• Insert the Ahead star nut straight into the fork steerer tube without improvising
• One tool for 1" and 1 1/8" steerer tubes
• Made from carbon steel, it weighs 557 g and withstands workshop use
• Compact at 124 mm long, easy to hold and store
• The package contains 1 Unior 1682/4 tool, ready to use

Technical specifications

• Model: 1682/4
• Intended use: installing the Ahead star nut in the fork steerer tube
• Compatibility: 1" and 1 1/8" steerer tubes
• Length: 124 mm
• Diameter D1: 29.5 mm
• Diameter D2: 15.2 mm
• Diameter D3: 24 mm
• Weight: 557 g
• Material: carbon steel
• Package contents: 1 x Unior 1682/4 tool

Unior was founded in 1919 in Zreče, in present-day Slovenia, where it is still based. For bicycle care, it makes tools, repair stands and wheel equipment. Its name, adopted in the 1970s, comes from the expression “universal tools” and reflects its roots in metalworking.