Competition Wheel Stud Conversion Kit

$165.00 - $600.00
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Installation Difficulty

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Install Instructions

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Product Description


PLEASE NOTE: All lug nuts are for use with M14x1.5 studs. Please verify lug nut seat pattern with your wheel's manufacturer. The following should be used as a general guideline only

  • BALL R14 - For Porsche OEM wheels - Available in Black only
  • BALL R14 Titanium - For Porsche OEM wheels - Available in Titanium Finish Only
  • CONICAL - For aftermarket wheels using conical seats - Available in Silver only

Are you still using those factory aluminum lug nuts that are prone to cracking, stripping, and seizing up? Save the hassle and switch to these steel nuts which are required for most organized track/race events.

Rennline's competition wheel studs offer customers the ability to get rid of those bulky factory lug bolts that make those quick tire changes so cumbersome. These studs are constructed of heat treated grade 8 steel to exceed the requirements outlined by SAE standards. These come standard with a Black Zinc coating which is far superior to the Black Oxide coating found on many other studs in the marketplace. Studs have been certified to meet ISO 898-1 class 10.9 requirements. These particular studs are an m14x1.5 thread commonly found on Porsche, Audi, and several other makes, and are available in 35mm, 45mm and 60mm lengths of useable thread. Sold as a complete kit with 20 studs and 20 nuts

Please note the 60mm studs are LONG. For OEM wheels, most aftermarket wheels and even with most spacers 45mm will be long enough. Please measure and confirm you need this long of a stud before ordering the 60mm kit. The 35mm studs will be long enough if you have up to a 7mm spacer. 7mm and above please buy the 45mm studs. The 60mm studs are only necessary if you are running a spacer wider than 15mm.

  • 15mm of threads on hub side
  • 8mm of unthreaded shoulder for brake rotor
  • 35mm, 45mm or 60mm of threaded stud from shoulder



Ball Seat Lug Nuts

  • For factory ball seat wheels. Available in Factory Steel, or Ultra Lightweightm high strength, corrsion resistant 6AL-4V Titanium 

    Conical Seat Lug Nuts 

  • Check your wheels as some aftermarket wheels do use Conical Nuts which are an available option with this kit.