H&R 40525571 TRAK+ Hubcentric Wheel Adapters 5/100 to 5/112 - Pair

The H&R TRAK+ Wheel Adapters (Part #40525571) allow you to fit wheels with a different bolt pattern to your Audi or VW vehicle. Designed to adapt a 5/100 bolt pattern hub with a 57.1mm center bore, these hubcentric adapters are sold as a pair and are engineered to the same exacting standards as H&R's full TRAK+ spacer lineup.

Unlike a simple flat spacer, TRAK+ Wheel Adapters are fully hubcentric — they seat precisely on the vehicle hub just like a standard wheel, eliminating vibration and ensuring perfect concentricity. The wheel side of the adapter features a different bolt pattern, allowing non-standard wheels to be fitted securely and safely.

Key Features:

• Hubcentric design — eliminates vibration and ensures precise wheel centering
• Adapts 5/100 (57.1mm CB) hub to accept wheels with a different bolt pattern
• Available in thicknesses ranging from 20mm to 25mm
• Constructed from a proprietary aluminum/magnesium alloy — up to 70% lighter than comparable steel
• Hard anodized finish for long-lasting durability and corrosion resistance
• Maximizes vehicle track width for improved lateral stability and handling
• Suitable for year-round use, including winter wheel and snow tire setups
• Sold as a pair (two adapters)

Wheel Bolt Guidelines:

When using wheel adapters, replacement wheel bolts must be longer than your original bolts by the thickness of the adapter. The bolt head style must match your existing hardware. Use the following end-digit reference when ordering bolts:

• End digit 01 — Taper 60°
• End digit 02 — Round head for M12/d24mm or M14/d28mm
• End digit 03 — Round head for M12/d26mm (e.g., OE VAG wheels)
• End digit 06 — Flat head for Porsche OE wheels M14 × 1.5

Minimum 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 confirm full clearance from brake components, ABS sensors, and surrounding hardware before driving.