H&R 50655671 TRAK+ Hubcentric Wheel Adapters 5/112 to 5/112 57.1CB (Pair)

The H&R TRAK+ Wheel Adapters (Part #50655671) are hubcentric wheel adapters designed to adapt Audi and Volkswagen wheels featuring a 5/112 bolt pattern with 57.1mm center bore. Sold as a pair, these adapters allow fitment of wheels with a different bolt pattern while simultaneously moving the wheel outward from the hub for improved stance and handling dynamics.

Unlike simple spacers, TRAK+ Wheel Adapters feature a different bolt pattern on the wheel-facing side of the adapter, enabling non-standard bolt pattern wheel fitment. They mount to the vehicle hub just like a standard TRAK+ DRM Series spacer — hubcentric and flush — while presenting a new bolt circle for aftermarket or cross-vehicle wheel compatibility.

Key Features:

• Hubcentric design — fits flush to the factory hub for vibration-free performance
• Adapts 5/112 (57.1mm CB) Audi/VW bolt pattern to accept alternate bolt pattern wheels
• Available in 20mm to 25mm thickness for track widening and fitment flexibility
• Constructed from a proprietary aluminum/magnesium alloy — up to 70% lighter than comparable steel spacers
• Hard anodized finish for lasting durability and corrosion resistance
• Maximizes vehicle track width for improved lateral stability, lowered roll center, and enhanced handling
• Suitable for winter use with snow tire and wheel setups
• Sold as a pair (two adapters)

Wheel Bolt Selection Guidelines:

When ordering replacement wheel bolts for use with these adapters, observe the following:

• New bolts must be longer than the originals by the thickness of the adapter used
• Bolt head style must match the existing bolts exactly:
  • 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
  • Flat head for Porsche OE wheels 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 on the inside of the hub and confirm the wheel spins freely. Ensure wheel bolts do not contact ABS sensors or any brake system components. Note: maximum tolerance on some vehicles (e.g., rear axle Mercedes) may be as little as 2mm.