H&R 406556401 TRAK+ Wheel Adapters 5/112 to 5/112 57.1mm Hub Audi VW (Pair)

The H&R TRAK+ Wheel Adapters (Part# 406556401) are precision-engineered hubcentric adapters designed to adapt Audi and Volkswagen wheels with a 5x112mm bolt pattern and 57.1mm center bore. Sold as a pair, these adapters allow wheels with a different bolt pattern to be fitted to your vehicle, while simultaneously widening the track for improved stance and handling dynamics.

Unlike generic spacers, H&R TRAK+ Adapters are hubcentric — they seat directly on the vehicle hub just like a standard wheel, eliminating vibration and ensuring precise, safe wheel centering. The wheel-side of the adapter features a bolt pattern that accepts non-standard wheel fitment, giving you greater flexibility in wheel selection.

Key Features:

• Hubcentric design — fits precisely to the vehicle hub for vibration-free performance
• Adapts 5x112 / 57.1mm CB Audi/VW bolt pattern wheels
• Available in thicknesses ranging from 20mm to 25mm
• Made from a proprietary aluminum/magnesium alloy — up to 70% lighter than comparable steel spacers
• Hard anodized finish for long-lasting durability and corrosion resistance
• Maximizes vehicle track width for improved lateral stability and a more aggressive stance
• Suitable for year-round use including winter with snow tires and wheels
• Sold as a pair

Wheel Bolt Guidelines (when ordering replacement bolts):

• New bolts must be longer than original bolts by the width of the adapter used
• Bolt head style must match the original: Taper 60° (end digit 01), Round head M12/d24mm or M14/d28mm (end digit 02), Round head M12/d26mm OE VAG wheels (end digit 03), or Flat head Porsche OE M14×1.5 (end digit 06)

Minimum Wheel Bolt Engagement (Safety Guidelines):

• M12×1.25 — 8.0 turns (~10mm load-bearing shaft length)
• M12×1.50 — 6.5 turns (~10mm load-bearing shaft length)
• M12×1.75 — 6.5 turns (~12mm load-bearing shaft length)
• M14×1.25 — 9.0 turns (~12mm load-bearing shaft length)
• M14×1.50 — 7.5 turns (~12mm load-bearing shaft length)
• 1/2" UNF — 8.0 turns (~11mm load-bearing shaft length)

After installation, always rotate the wheel by hand to verify clearance inside the hub. Ensure wheel bolts do not contact ABS sensors or any brake system components. Note that maximum clearance tolerance on some vehicles (such as the Mercedes rear axle) may be as little as 2mm.