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BMW is one of the most popular car brands in the world. While it started out as an aircraft engine producing company, the company today is responsible for producing motorcycles and luxurious car brands across the globe.

The company traces its humble begging back in 1916 in Munich, Germany. But due to innovation, the company took center stage producing cars in the world biggest countries such as in China, Germany, UK, India, Brazil, and in the US. The company is owned by the Quandit family who owns a bigger share of the company’s shares. All automobiles produced by the company are sold under the brands of Mini, BMW, and Rolls-Royce. All motorcycles are sold under the famous brand of BMW Motorrad.

The pattern chart of BMW Bolts

The BMW Bolt pattern

The bolt pattern is a term used to ascertain the number of lugs that one’s cars have alongside the resultant measurement between the wheels. A 5×4.5 bolt pattern would be interpreted as a pattern that has 5 lugs spaced evenly 4.5 across.

BMW Centerbore

The centerbore can best be understood as the machined hole located on the back of a wheel that is used to center the wheel on the hub of the car.

Many factory-produced wheels tend to have the centrebore matching perfectly with the hub. This is done as a way of reducing the vibration by perfectly keeping the wheel positioned center wise.

Hub centric are they type of wheel that comes with the right centebore for mounting purposes. Such hub centric wheels have the ability to reduce the resultant tedious job of the lug nuts mounting on the center of the wheel of the car. Additionally, they also reduce the stress contained in the lug nuts.

Lug centric are the opposite of Hub centric wheels as the job of centering now lies with the lug nuts torquing process. It is very essential that the centrebore of lug centric should be the same or larger than the holes on the hub; otherwise the mounting process would be impossible.

Centebore offsetting

An offset refers to the where the bolt holes are contained in relation to the centerline of the said wheel. Offsets can be made in terms of zero, positive, or negative, low, medium, and high offsets.

Torque specifications for BMW Lug Nuts

The right procedures, tools, and patterns are required for the torqueing process. This is very essential as it has a way of not only reducing the stretching of the studs but also allow for striping of the threads and preventing overtightening of the wheels’ hardware. Any slight for of over or under-tightening of the wheel-attaching hardware can prove to very dangerous in the end.

The torque specifications contained in this guide are used for dry thread only. Users should always ensure that the fastening threads are free of dirt, oil, corrosion, and grit. Even without binding, the hardware should always run freely. Users are reminded never to lubricate the seats of the hardware threads. This is the case as lubricating the seats and the threads will alter the friction that would be generated at the lag seat, if this happens, inaccurate torque readings would be recorded.

Users are specifically reminded not to use torque sticks and impact guns as their usage would only prove to be damaging.

Variables that can result in inaccurate torque delivery

  • The specific impact applied
  • Power such as battery power and air pressure
  • The rate of impact per second
  • Any use if added adapters
  • The resultant weight of the impact
  • The type of angle used during impact

Users are specifically reminded to use the right crisscross pattern for the number of car’s wheel attaching hardware positions so as to ensure that they get the correct torque value. It is also very important that new wheels should always be re-torqued after the first 50-100 mileages of driving.

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