Alpha Rider Wheel Fitment Tool for 13–22" Wheels, 4/5‑Lug — Aluminium Offset Gauge with Dual‑Lip Readout

The Alpha Rider Wheel Fitment Tool is a portable, aluminum wheel offset and lip-measurement gauge that enables accurate fitment checks for 13" to 22" wheels with 4- or 5-lug patterns.

Whether you're swapping wheels, planning a staggered setup, or checking clearance before rolling on a new tire size, this tool gives a quick visual readout of wheel diameter, width, and offset while showing inner and outer lip positions. Built from 6061 aluminum with stainless hand-tightening screws, it replaces fiddly Allen-key designs and is designed to resist corrosion and daily shop use. The front-facing scale and dual-lip measurement capability make it practical for DIY enthusiasts, tuners, and professional installers alike.

How do I use the Alpha Rider tool to check wheel offset and fitment?

Set the tool on the hub, adjust height and width to match the wheel, then read the front-facing scale to determine how the wheel sits relative to the fender line. The red alignment indicator shows where the outer edge will land so you can spot potential rub or clearance issues.

• Attach the base to the hub using the appropriate 4- or 5-lug position.
• Set wheel diameter (13"–22") and width (6"–16") on the scale.
• Adjust the offset range between −65mm and +65mm and align the red line with the lip.
• Compare inner and outer lip positions to fender or suspension components.

What measurement details does the tool provide that help prevent fitment problems?

The Alpha Rider tool measures wheel diameter, width, and both inner and outer lips—so you see where the wheel will sit relative to the hub and fender. That prevents surprises like rubbing, incorrect backspacing, or wheels that sit too far inboard or outboard.

• Full diameter coverage from 13" to 22" for most passenger and light-truck wheels.
• Width range of 6"–16" to handle narrow to wide performance wheels.
• Offset adjustment spanning −65mm to +65mm for aggressive and conservative fits.
• Dual-lip measurement features both inner and outer lip readings for accurate clearance checks.

Why choose this model over basic fitment gauges or DIY methods?

Compared with makeshift solutions, the Alpha Rider tool is built from robust 6061 aluminum and uses stainless hand-tightening screws to speed setup. The visible, front-facing scale simplifies readings and removes guesswork from offset and lip checks.

• Durable alloy construction for stable, repeatable measurements.
• Hand-tightening 304 stainless screws eliminate the need for an Allen wrench during adjustments.
• Corrosion-resistant parts for frequent shop or outdoor use.
• Clear, front-facing scale for faster, more confident setup checks.

How do I maintain and get the most from the fitment tool?

Keep the tool clean and lightly oiled at moving points; store it in a dry place to maintain accuracy. Periodically check that hand screws are snug and that the scale markings remain legible for reliable readings.

• Wipe away dirt and brake dust after each use to prevent buildup.
• Apply light lubricant to threaded parts if movement becomes stiff.
• Inspect measurement marks and tighten screws before every measurement session.
• Contact Alpha Rider support if any part shows damage or excessive wear.

Who is this for: The Alpha Rider Wheel Fitment Tool is ideal for home mechanics, wheel and tire shops, car builders, and enthusiasts who change wheels frequently or plan suspension and fender work. It’s particularly useful for anyone fitting aftermarket wheels, checking staggered setups, or verifying clearance before final installation, offering a faster, more reliable alternative to improvised gauges.