H&R 506556403 Trak+ 25mm DRA Wheel Adapter 5/114.3 to 5/112 Mercedes Fitment (Pair)

The H&R Trak+ 506556403 is a 25mm DRA Series hubcentric wheel adapter that converts a 5/114.3 bolt pattern (64.1mm center bore, 12x1.5 thread) vehicle hub to accept Mercedes-style wheels with a 5/112 bolt pattern (66.5mm center bore, 14x1.5 thread). Sold as a pair, these adapters allow you to run Mercedes wheels on vehicles with a 5/114.3 bolt pattern while also widening the track by 25mm per side for improved stance and handling.

DRA Series Design:

• Bolts to the vehicle hub using special wheel bolts (included)
• Provides new threaded holes on the wheel-facing side for proper Mercedes-pattern wheel mounting
• 25mm thickness widens the track for improved fitment and stance

Key Features:

• Hubcentric construction with full contact hub for even load distribution and lateral support
• Manufactured from a proprietary aluminum alloy with higher tensile strength than standard 6061-T6 billet aluminum
• Changes bolt pattern from 5/114.3 to 5/112 for cross-vehicle wheel fitment
• Center bore conversion: 64.1mm (vehicle side) to 66.5mm (wheel side)
• Thread conversion: M12x1.5 (vehicle side) to M14x1.5 (wheel side)
• Sold as a pair (two adapters)

Wheel Bolt Safety Guidelines:

• After installation, verify that wheel bolts do not contact or damage any brake system components, including ABS sensors
• Rotate the wheel by hand to confirm free rotation and adequate clearance inside the hub
• Minimum engagement requirements: M12x1.25 = 8.0 turns | M12x1.50 = 6.5 turns | M14x1.50 = 7.5 turns
• Note: Maximum hub clearance tolerance on some vehicles (e.g., Mercedes rear axle) may be as little as 2mm — verify fitment carefully

H&R Trak+ wheel adapters are engineered in Germany and are trusted by performance enthusiasts for both daily driving and track use.