No front brake line extension is necessary for use of handlebars in their original rotational position within the handlebar clamps; however, if you roll your handlebars further rearward within the handlebar clamps, you may need to extend the front brake line if using this handlebar riser.
Fits 2008-on F800GS, 2014-on F800GS Adv, 2012-on F700GS. Not for F650GS.
SW-Motech F800GS|ADV|F700GS Bar Risers
Produced by SW-Motech of Germany