MMR Performance Wheel Bolt-to-Stud Conversion Kit - M14x1.25 Extended Wheel Studs & Black Lug Nuts, Conical/Ball Seat, 70mm 80mm, Spacer Friendly, Track/Road

MMR Performance Stud and Nut Conversion - M14x1.25

Upgrade your wheel fastening from standard hub bolts to a stud and nut conversion designed for speed, convenience and confidence. Ideal for track days, club motorsport and fast-road builds, this M14x1.25 setup helps you hang the wheel easily, align the rim without drama and achieve consistent torque every time. It looks smart too, with gloss black anodised nuts that tidy up the look behind your spokes.

• M14x1.25 thread pitch - the go-to for many performance applications
• Faster wheel changes - simply slide the wheel on to the studs and spin on the nuts
• Secure clamping - a robust upgrade over factory hub bolts
• Spacer-friendly - choose the correct length for your spacer stack
• Reversible upgrade - can be returned to OE hardware if required
• Smart finish - gloss black anodised nuts for a clean, discreet look
• Available with conical or ball seat nuts to suit your wheels

Length options

• 70 mm - suitable for no spacers or up to 10 mm per corner
• 80 mm - suitable for 10 to 20 mm per corner

Seat type options

• Conical seat - commonly used on many aftermarket alloys
• Ball seat - typically used on many factory wheels

Why choose a stud conversion

• Easier wheel mounting - no juggling heavy wheels while trying to line up bolts
• Repeatable fit - helps reduce the risk of cross-threading compared with repeated bolt use
• Spacer compatibility - extended studs maintain thread engagement when using spacers
• Motorsport friendly - quicker pit-stop style wheel swaps at the circuit

We have installed these kits for customers and on our own cars. Feedback is consistently positive for ease of use, neat aesthetics and reliable performance on road and track.

Fitting and support

Professional installation recommended for best results. MJ Modifications offers fitting at our Warwickshire workshop - request a quote at info@mjmodifications.co.uk.

Compatibility notes

Confirm your vehicle’s thread pitch is M14x1.25, choose the correct nut seat type for your wheels and select the appropriate stud length for your spacer thickness. If you are unsure, contact us for advice.

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