Kit containing 20 M14x1.25 70 mm studs and 20 MMR tapered nuts - BMW & MINI

The kit, consisting of 20 M14x1.25 70 mm studs and 20 MMR tapered nuts, is an ideal upgrade for BMW and MINI owners looking to replace the original wheel bolts with a more practical, reliable fastening system that’s perfectly suited for sporty driving. This conversion makes wheel replacement easier while giving the car a more racing-inspired look.
The kit includes 20 high-strength steel studs with M14x1.25 threads and 20 conical-seat nuts, enough to equip an entire vehicle. Unlike the original bolts, the studs remain attached to the hub, making it easier to position the front wheel before starting the tightening process for the nuts. This makes wheel replacements faster, more precise, and safer—especially during tire changes, mechanical work, or track days.
Made of high-strength steel, MMR studs feature a black finish that offers excellent corrosion resistance while providing a premium look perfectly in line with the performance ethos of MMX Performance.
With a length of 70 mm, these studs are particularly recommended for vehicles equipped with stock rims or wheel spacers up to 10 mm. They ensure optimal thread engagement while maintaining a secure and reliable mounting, even on high-performance vehicles.
The 20 conical nuts included are designed for rims with a conical mounting surface, which is commonly found on aftermarket rims. They ensure precise wheel centering and even tightening for road, sports, or track use.
The mounting is fully reversible and requires no permanent modifications to the vehicle.

Technical Specifications

• Manufacturer Part Number: MMR37-1501-70T
• Contents: 20 studs + 20 conical nuts
• Type: Wheel stud conversion kit
• Thread: M14 x 1.25
• Stud length: 70 mm
• Range type: Tapered
• Material: High-resistance steel
• Finish: Black
• Recommended use: Original rims or vehicles equipped with wheel spacers up to 10 mm
• Fully reversible mounting

Key Features

• Complete kit including 20 M14x1.25 70-mm studs and 20 tapered nuts.
• Makes it easy to perform the mounting and removal of wheels.
• Ideal for stock vehicles or those equipped with wheel spacers up to 10 mm.
• More robust mounting than original wheel bolts.
• High-resistance steel suitable for heavy-duty use.
• Corrosion-resistant finish with resistance to corrosion.
• Compatible with tapered-rim rims.
• Suitable for sporty road use, track days, and racing.
• Simple installation and fully reversible.

Mounting Recommendations

Remove the wheels, then thoroughly clean the hub threads and those of the new studs using a brake cleaner or suitable solvent to remove all traces of grease or debris.
Before installation, verify that the smooth end of the stud crosses the brake disc freely without hitting any obstructions.
Apply a thin layer of high-temperature threadlocker (type Loctite 2422 or equivalent) to the threads on the hub side.
Using a 6 mm Allen wrench, screw each stud into the hub until it is fully seated, then tighten to 40 Nm. Do not exceed this value for tightening.
Allow the threadlocker to vulcanize for about 3 hours before reinstalling the wheels.
Then install the wheels using the 20 tapered nuts provided and perform the tightening to the torque specified by the vehicle manufacturer. After driving the first few kilometers, it is recommended that you check the torque again.