Race Tech Suspension Upgrade on a 1974 BMW R60 /6

Modern performance with Race Tech cartridge emulators and shocks

12. Race Tech said to enlarge the compression orifices at the bottom of the damping rod to 5/16-inch and to ensure there are four holes total, which the BMW had. Drill the holes, then remove any burrs and lightly chamfer the holes with a small round file. Race Tech now suggests a total of six holes, but at 6mm in size instead of the 5/16-inch (approx. 8mm) originally suggested.
Photo by Landon Hall