H&R 502245571 TRAK+ Hubcentric Wheel Adapters for Audi 5/100 to 57.1CB (Pair)

The H&R 502245571 TRAK+ Wheel Adapters are a hubcentric solution for adapting Audi wheels with a 5/100 bolt pattern and 57.1mm center bore. Sold as a pair, these adapters allow fitment of wheels with a different bolt pattern than your vehicle's hub — giving you the flexibility to run non-standard wheel configurations without sacrificing safety or fitment precision.

Available in thicknesses ranging from 20mm to 25mm, H&R TRAK+ Wheel Adapters mount to the vehicle hub exactly like a standard TRAK+ spacer, but feature a different bolt pattern on the wheel-facing side, enabling wheels from a different vehicle make or model to be properly fitted. Like the TRAK+ DRM Series spacers, these adapters are fully hubcentric — centering on the factory hub for vibration-free, precise fitment.

Key Features:

• Hubcentric design — fits precisely to the vehicle hub, eliminating vibration
• Maximizes vehicle track width for improved looks, lowered roll center, and increased lateral stability
• Constructed from a proprietary aluminum/magnesium alloy — up to 70% lighter than comparable steel products
• Hard anodized finish for long-lasting durability and corrosion resistance
• Ideal for winter use with dedicated snow tire and wheel sets
• Sold as a pair (two adapters)

TRAK+ Series Overview:

• DR Series (10–40mm) — Fits between wheel and hub; requires longer wheel bolts (ordered separately)
• DRS Series (10–40mm) — Fits between wheel and hub; requires exchanging existing wheel studs for longer ones (included)
• DRA Series (40–60mm) — Bolts to hub with special wheel bolts (included); provides new threaded holes for wheel bolts
• DRM Series (40–90mm) — Bolts to hub using existing wheel studs with special nuts (included); wheel bolts to new DRM wheel studs

Wheel Bolt Selection Guidelines (when longer bolts are required):

• New bolts must be longer than the originals by the exact width of the spacer used
• The bolt head style must match your existing bolts:
  • 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 OE 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 that wheel bolts do not contact any brake system components, including ABS sensors. Note that maximum tolerance on some vehicles is as little as 2mm (e.g., rear axle on Mercedes models).