Joined Jul 2020
6K Posts | 3K+
Midwest
On the V4, the QS down will not work if there is any input to the throttle at all. All of the up/down QS I've come across which are not of a strain type function the same. +5V, ground and signal to ECU. There's a different voltage provided to the ECU if the QS is at idle or if an up or down shift is being called for. Ducati's OEM is Domino and they're used by a few different manufacturers.Help me solve a mystery. I have a 2012 1199S, bought 2 summers ago, (2021) with about 5k miles on it. Bike was bone stock-no evidence of any aftermarket shift system but my bike offers both up and down QS.
I've tested it numerous times, it is indeed QS down---not just rev-matching. Throttle needs to be under load, but it will very smoothly downshift if engine/throttle is under load.
How can this be? I'm understanding 2012 1199S models did NOT offer bi-directional QS.
Would love opinions on this--not complaining--glad to have it!
Greg