custard,The cycle cat products are truly top shelf in material ,craftsmanship & also in their finely detailed spec pages to assist you in any concerns you may have with any product you may purchase.For your model machine it calls for the DBR1 system , it does not require a cable extension , if in fact it did , cycle cat has you covered ..
www.cyclecat.com.dbr1-1.htm.... read about it here..later...RS