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X-Head_LC cylinder guard- PROPER Installation

The T50 bolts that we supply with the X-Head_LC are 3.5mm longer than stock to compensate for the 3.5mm thickness of the X-Head surrounding it. They are made of 12.9 grade steel and the tightening torque is a maximum 10 Newton meters, the same as BMW’s spec. We’ve successfully tested tightening for strength to 24 Nm. – 10 Nm is not much force! Many customers ignore the instructions and do not use a torque wrench, or use an incorrectly set wrench and over tighten. One more “oomph” for good measure can cause a problem – not only risking breaking a bolt, but also damaging the gasket engine cover gasket.

Once the T50 bolt is set properly it does not move and is not vulnerable to damage. Below are two images showing X-Head’s protective benefits over a wide contact area after a pavement crash at 40 mph. Its 2 layers of material, a thermoplastic rubber liner and a nylon shell, are designed to flex slightly and wear as speed is scrubbed off.  The shell will not break. The T50 bolt is protected within a depression below the contact surface level and you can see that there is no abrasion damage around it.

If you have any reservation about installing X-Head_LC properly, take it to a qualified BMW technician to do it properly. You will be very happy with X-Head’s benefits and performance for your R1200_LC model.