H&R 50235571 TRAK+ Hubcentric Wheel Adapters 5/108 Ford/Volvo Bolt Pattern (Pair)

The H&R TRAK+ Wheel Adapters (Part #50235571) are hubcentric spacer-style adapters designed to convert a vehicle's existing bolt pattern, allowing wheels with a different bolt pattern to be properly fitted. This pair adapts Ford/Volvo 5/108 bolt pattern wheels with a 63.3mm center bore, and is available in thicknesses ranging from 20mm to 25mm. Like all H&R TRAK+ products, these adapters mount to the vehicle hub exactly as a standard wheel spacer would, while presenting a different bolt pattern on the wheel-facing side for non-standard fitment.

Key Features:

• Hubcentric design — fits flush to the vehicle hub for a secure, vibration-free fitment
• Bolt pattern conversion — vehicle side 5/108 (63.3mm CB) compatible with Ford and Volvo applications
• Available in 20mm–25mm thicknesses for flexible fitment options
• Proprietary aluminum/magnesium alloy construction — up to 70% lighter than comparable steel products
• Hard anodized finish — tough, corrosion-resistant, and durable for long-term use
• Maximizes vehicle track width for improved lateral stability and handling
• Suitable for use with winter tire and wheel setups
• Sold as a pair

Wheel Bolt Ordering Guidelines:

When additional wheel bolts are required, follow these specifications:

• New bolts must be longer than original bolts by the width of the spacer used
• Bolt head must match the existing bolt type exactly:
  • Taper 60° — End digit 01
  • Round head M12/d24mm or M14/d28mm — End digit 02
  • Round head M12/d26mm (e.g. OE VAG wheels) — End digit 03
  • Flat head for Porsche OEM wheels M14×1.5 — End digit 06

Minimum Thread 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 clearance on the inside of the hub and verify no contact with ABS sensors or brake components. Note: maximum tolerance on some vehicles (e.g. Mercedes rear axle) may be as little as 2mm.