Measuring base plate dimensions

The mount plate sits between your cockpit and your armrests, held by the armrest bolts. Its width depends on how far apart those bolts are.

1. Measure outside to outside across the two outermost bolts that hold your armrests. If your armrest brackets have inner and outer holes, measure the holes you use.
2. Choose the plate that covers that distance:
   • Medium: 52 to 148 mm
   • Wide: 130 to 198 mm
   • Extra Wide: 167 to 235 mm
   Between 167 and 198 mm both Wide and Extra Wide fit.
3. Loosen the armrests, place the plate underneath them, and bolt the armrests back on top.

The plate's bolts stick out below it, so your extensions need a gap between them. Watch how to measure.