H&R 40735725 TRAK+ DRA Series Wheel Adapter 20mm 5/120 to 5/108 Ford/Volvo (Pair)

The H&R TRAK+ 40735725 is a 20mm DRA Series hubcentric wheel adapter that converts a 5x120 bolt pattern with a 72.5mm center bore to a 5x108 bolt pattern with a 63.3mm center bore — allowing fitment of Ford and Volvo-pattern wheels (5/108 - 63.3 CB) on vehicles running a standard 5/120 hub. Sold as a pair.

As a DRA Series adapter, each unit bolts directly to the vehicle hub using special included wheel bolts and features new threaded holes on the wheel-facing side for your existing wheel bolts. This system provides 40mm of total track widening (20mm per side) while maintaining a fully hubcentric fit for even load distribution and lateral support.

Key Features:

• Hubcentric design — full contact hub-to-adapter interface for even load force distribution and lateral support
• DRA Series — bolts to hub with included special wheel bolts; existing wheel bolts thread into new holes on adapter face
• Converts 5x120 / 72.5mm CB to 5x108 / 63.3mm CB — enables Ford/Volvo-pattern wheel fitment
• 20mm thickness per adapter (40mm total track widening per axle)
• M12x1.5 thread type
• Manufactured from a proprietary aluminum/magnesium alloy — lighter and higher tensile strength than standard 6061-T6 billet aluminum
• Hard anodized finish for long-term durability and corrosion resistance
• TÜV approved and engineered in Germany
• Sold as a pair (2 adapters)

Wheel Bolt Safety Guidelines:

• New wheel bolts must be longer than the originals by the thickness of the adapter used
• Bolt head style must match the existing bolts (taper 60° or round head)
• Minimum engagement threads by bolt size:
  • 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)
• After installation, rotate the wheel by hand to confirm clearance from brake components (ABS sensors, calipers, etc.) — note that maximum tolerance on some vehicles (e.g., Mercedes rear axle) can be as little as 2mm