R13 Lug Bolt to Stud Conversion Kit

If you frequently remove and install your wheels – especially on the track – you know how inconvenient factory lug bolts can be:

• difficult alignment of holes

• risk of hitting brake calipers

• bending or stripping threads

• all while holding the heavy wheel

RacingLine Performance Wheel Stud & Nut Kit solves this problem by offering a stronger and significantly faster mounting method, especially suitable for track days and motorsport.

⚙️ Stronger and Safer Fastening

• M14 x 1.5 high-strength steel studs

• Stronger than OEM bolts

• Larger nuts → larger contact area

• Higher security for aggressive driving and high loads

⏱️ Much Faster Wheel Changes

The Stud & Nut system is ideal for cars with:

• frequent wheel changes

• track / race use

• various setups with spacers

The studs automatically center the wheel, making installation faster, easier, and safer.

🔧 Easy and Fully Reversible Installation

• Screw directly into the OEM bolt holes

• Internal 6mm hex drive for easy installation

• Can be removed at any time

🎯 Compatibility with Spacers – No Risk

The Stud & Nut Kit allows safe use of various width spacers, without the risk of insufficient thread – something that is often a problem with bolts.

🖤 Premium Look

• Lightweight 7000 series aluminum

• Gloss Midnight Black anodized nuts

• Knurled outer edge for easier grip

• Open-ended design

📏 Which stud length to choose?

• 70 mm studs
  👉 Without spacers or with spacers up to 10 mm

• 80 mm studs
  👉 With spacers 11–20 mm

• Split kit 70/80 mm
  👉 0–10 mm front and 11–20 mm rear

🧪 Technical Specifications

• Thread: M14 x 1.5

• Studs: heat-treated high-carbon steel, chromed

• Nuts: 7000-series aluminum, anodized

• Drive: internal 6mm Allen

• Unthreaded section: 8 mm (for proper fit to the brake rotor)

• Nut size: 19 mm (oversize) – easier handling and better contact

• Available nuts: conical and spherical (ball seat) – for OEM or aftermarket wheels