MMR Stud and Nut Kit 80mm Ball Seat for BMW and Mini

MMR Wheel stud and nut kit for MINI

Remove and refit your wheels regularly? Then you’ll know how frustrating the factory wheel bolts can be! Lining up the bolt holes, bashing your callipers with the wheel, trying to avoid cross-threading the bolts - all while balancing the weight of the wheel. M14 x 1.25 heat-treated high carbon steel stud with chrome plated finish.

M14 x 1.25 heat-treated high carbon steel stud with chrome plated finish.

Converting your car to our stud and nut kit is a simple and reversible upgrade that will speed up your wheel changes. Our stud and nut kit also allows for the safe use of different spacer size setups without the risk of running out of bolt threads. All MMR studs are finished in a beautiful midnight-black gloss anodising and both conical and ball seat lug nuts are available to suit either factory or aftermarket wheels.

We offer two different stud lengths, depending on your fitment:

• 70mm Stud: No spacers, or up to 10mm spacer
  
• 80mm Stud: Spacers between 10mm to 20mm

We also offer two different nut types, depending on what wheels you are running: Ball seat nuts or Conical seat nuts. Please check which type your wheels require, it's important to get it right! Note that most OEM wheels use the Conical seat nuts.

Features

• Stronger fixing.
• M14 x 1.25 high tensile steel motorsport studs and larger anodised wheel nuts exceed the strength of the factory bolts for ultimate strength and safety.
• Quick wheel changes.
• Stud and nut kits are suited to any car that sees track use with regular wheel changes. The studs really help to speed things up when you are trackside.
• Easy installation.
• Our MMR studs screw in place of your original wheel bolts with allen drive inserts to make installation a breeze. Plus easily removed in future.

Additional Information

Max vehicle weight 2500 KG.

This is not a ‘locking’ or security solution.

As with all anodised finishes, do not clean these nuts with aggressive acidic or alkaline cleaners otherwise the finish will be damaged.​

Use only pH balanced cleaners (ie, non-acid, non-alkaline, non-solvents). Never use ANY type of wheel cleaner or any chemicals including abrasive compounds on the nuts. We recommend washing with water and mild soap. We advise against using commercial carwashes who use aggressive chemicals such as TFR.

Fitting Information

Remove the wheels and clean the threads in the hub and the short ends of the new studs using a suitable solvent such as brake cleaner. Ensure the threads are totally free from dirt and grease.

Before you fit the stud, check that the shank (the plain section between inner and outer threads) passes easily through the disc holes and you are not bottoming the stud on the brake disc.

Coat the threads on the short end of the stud with a thin covering of Loctite Blue 2422 or similar (high temp rated to 650°F - it’s important to use a high temperature-rated Loctite that exceeds hub temps).

Using a 6mm Allen Key, screw the short end of the stud into the hub until you reach the shank.

DO NOT OVER TIGHTEN THE STUD INTO THE HUB – TIGHTEN UP TO AROUND 30ft-lbs / 40Nm.

Wait about three hours for the Loctite to go off fully and refit wheels with the new nuts using 19mm socket. Lower the vehicle back onto the floor and torque the wheel nuts to the factory specification of the original lug bolts.

Recheck the torque of the studs after 30mins of driving once the whole assembly has got hot.

Vehicle Fitment