RISK RL106 Bicycle Fork Star Nut Installation Tool – Steel Star Fangled Nut Setter for 28.6mm MTB/Road Bike Steerer Tube

The RISK RL106 is a complete star fangled nut (star nut) installation tool for bicycle fork steerer tubes. It lets you drive a steel star nut straight and centered into the steerer on the first try — clean, level installs without crooked or damaged nuts. The kit includes a blue anodized aluminum driving sleeve, a steel alignment sleeve, an M6 pull rod with locating screws, plus a steel star nut and spare locating screws as a bonus.

Key Features

• All-in-one kit – driving sleeve, alignment sleeve, M6 pull rod, locating screws and star nut included, ready to use.
• Straight & centered installs – the alignment sleeve keeps the star nut level so it seats evenly inside the steerer.
• Durable build – high-strength steel with blue anodized aluminum sleeve, built for repeated shop and home use.
• Simple operation – works with a standard rubber mallet or steel hammer; no press or special tooling needed.
• Compact & light – roughly 100 g, easy to store and carry.
• RISK brand – private-label authorization available (Model RL106).

Compatibility / What It Fits

• For steel fork steerer tubes with 28.6 mm outer diameter (1-1/8").
• Installs fully plated steel star nuts / star fangled nuts.
• Fits MTB, road, urban and gravel bikes with steel (alloy) steerer forks.
• ⚠️ NOT for carbon fiber fork steerers — hammering can damage carbon.

Notes & Cautions

• Steel steerer tubes only; do not use on carbon fiber steerers.
• Use with a rubber mallet or steel hammer — some hardened steel star nuts need a steel hammer.
• After cutting the steerer tube, file the cut edge flat before installing, or the protruding edge may block the alignment sleeve.
• Strike carefully and wear hand protection while hammering.
• Dimensions and weight are hand-measured and may vary slightly; for reference only.
• This listing sells the tool only; the bike/fork shown in images is not included.

Details & Specifications