Part # 31002202
Wunderlich Hydraulic Line Extension

After installing the Wunderlich "GS" style handlebar kit, I wanted a little more slack in the clutch line. This fitting did the job. Despite the confusing instructions, it only took about 20 minutes to install. I did not have to bleed the clutch line. After installing the fitting I pumped the clutch lever about 30 times until I felt some resistance. It's as simple as that. Now, as for what's wrong with the instructions... the fitting comes with two copper crush washers and two composite washers for the banjo bolts. The instructions seem to show both kinds of washers going in the same place. I was very confused until it dawned on me to look up the translation of "bremsarmatur" (brake fitting) and "Kupplungs-armatur" (clutch fitting.) Duh! Now it makes sense... the copper washers are for the brake fitting and the composite washers are for the clutch fitting. This is a nicely machined piece, albeit expensive. I gave four stars because of the confusing instructions otherwise it's a five.