lkchris
Active member
Later in 2006 production BMW changed to a single disc type horn from the previous trumpet-style dual horns initially installed on RTs beginning in 2005. Lots of later RT owners prefer to change over to the earlier, louder setup, and it's easy, as BMW continued to provide the wiring for the second horn.
Only parts required are the two horns, available at your BMW motorcycle dealer OR at a BMW car dealer, as same parts are used on E39 5-series. The car application expands opportunites for junk yard find I imagine--E39 is 1998-2002 production IIRC.
Horns:
61 33 8 381 271 (low)
61 33 7 655 882 (high)
1. Find the unused wiring taped and cable-tied to a fairing mount tube by removing left mirror and looking down through hole uncovered by removing mirror as in this photo pirated from BMW Sport Touring (the silver thing on right doesn't exist on your bike, as it's something extraneous added by previous photographer).
Seeing this wiring and detaching it are two different things and you should probably remove the upper painted side panel on the left (clutch) side for access. The connecter is covered by a cap, which you remove and discard.
Only parts required are the two horns, available at your BMW motorcycle dealer OR at a BMW car dealer, as same parts are used on E39 5-series. The car application expands opportunites for junk yard find I imagine--E39 is 1998-2002 production IIRC.
Horns:
61 33 8 381 271 (low)
61 33 7 655 882 (high)
1. Find the unused wiring taped and cable-tied to a fairing mount tube by removing left mirror and looking down through hole uncovered by removing mirror as in this photo pirated from BMW Sport Touring (the silver thing on right doesn't exist on your bike, as it's something extraneous added by previous photographer).
Seeing this wiring and detaching it are two different things and you should probably remove the upper painted side panel on the left (clutch) side for access. The connecter is covered by a cap, which you remove and discard.
Attachments
Last edited: