V4s mods, where to start?

Ducati Forum

Help Support Ducati Forum:

interesting i just noticed Ducati have changed the quickshifter between 22-23 for the V4.
Previously was 55215484C now is 55215481D. I am thinking maybe i get mine changed under warranty before trying an aftermarket one.
View attachment 59519
I would attempt to take advantage of anything that you can redeem if it’s under warranty. Others on here might chime in as to how that experience goes. I hear the warranty has a lot of fine print and they will void it for pretty much anything. I believe a recall is met with less resistance. You might want to see if there is a recall on that part.
 
interesting i just noticed Ducati have changed the quickshifter between 22-23 for the V4.
Previously was 55215484C now is 55215481D. I am thinking maybe i get mine changed under warranty before trying an aftermarket one.

I wouldn't put a lot on that part number change. IIRC, the 20-21 had a cooling duct and heat insulation around the QS and 22+ that configuration was revised. They dropped the heat insulation on the QS and changed the air duct and added more cooling vents in the lower fairing.

Interesting that the 2025 dropped this QS style all together. Instead it uses input from the gear position sensor to determine when the rider is making an up or down shift. The gear sensors have suffered heat problems before, so it's unknown if this new strategy will be problematic or not.

At its core, it's still the same Domino +5v QS. There's a test you can do with the dealer tool to see if the QS is sending the right voltage to the ECU at rest, when upshifting and downshifting. The dealer will likely do this, and test ride the bike. If they can't duplicate it, nothing will get done. Maybe if you had a video of it causing problems you could advance a claim.

2021

1738117909708.png


2022

1738117932632.png
 
I wouldn't put a lot on that part number change. IIRC, the 20-21 had a cooling duct and heat insulation around the QS and 22+ that configuration was revised. They dropped the heat insulation on the QS and changed the air duct and added more cooling vents in the lower fairing.

Interesting that the 2025 dropped this QS style all together. Instead it uses input from the gear position sensor to determine when the rider is making an up or down shift. The gear sensors have suffered heat problems before, so it's unknown if this new strategy will be problematic or not.

At its core, it's still the same Domino +5v QS. There's a test you can do with the dealer tool to see if the QS is sending the right voltage to the ECU at rest, when upshifting and downshifting. The dealer will likely do this, and test ride the bike. If they can't duplicate it, nothing will get done. Maybe if you had a video of it causing problems you could advance a claim.

2021

View attachment 59520

2022

View attachment 59521
There we go. Someone who definitely knows a lot more than I. That’s helpful info even though mine isn’t the newest model. I need to change out the oem QS on the ‘18 I just bought. I received the shift support that I ordered and rear sets but I want to change it while everything is disassembled.

Which aftermarket QS do you prefer?
 
Honestly, I prefer the OEM. I'd probably go to a 2022+ lower fairing and air duct if I was having issues.

I've tried a Cordona, but didn't like it. I got more consistent shifts with the OEM one. The QS at idle sends about 1.8v back to the ECU. When you upshift, 2.5v and downshift .8v or something similar. While not exact (it may be 2.7v etc) what the QS sends to the ECU is pretty consistent.

The strain gauge types vary the voltage based on the amount of force you provide and the direction. It's not as consistent. You can see this with the dealer tool as you can monitor the voltage the QS is sending to the ECU. IMO, this leads the strain types to being inconsistent. Some like it and it's not a problem for them, I did not. If you shift with a light touch, all the time, the strain gauge may be for you.

The HM is a strain gauge, and has adjustable sensitivity, which is something the Cordona lacks. I'd look for this feature, but the HM (at least anecdotally) have durability issues.

I got into a rabbit hole of QS nonsense while trying to solve a problem with my bike intermittently failing to downshift when using the QS. This ended up being because I changed the gearing. Returned the bike to OEM gearing and it's been great since. You can get away with very minor changes, maybe +2 rear or -1 front, if you are using the OEM profile 200/60 rear. Outside of that you're asking for problems.
 
Last edited:
I would attempt to take advantage of anything that you can redeem if it’s under warranty. Others on here might chime in as to how that experience goes. I hear the warranty has a lot of fine print and they will void it for pretty much anything. I believe a recall is met with less resistance. You might want to see if there is a recall on that part.
Yeah. Not sure how yoshi will get a warranty repair on a non-issue
 
Honestly, I prefer the OEM. I'd probably go to a 2022+ lower fairing and air duct if I was having issues.

I've tried a Cordona, but didn't like it. I got more consistent shifts with the OEM one. The QS at idle sends about 1.8v back to the ECU. When you upshift, 2.5v and downshift .8v or something similar. While not exact (it may be 2.7v etc) what the QS sends to the ECU is pretty consistent.

The strain gauge types vary the voltage based on the amount of force you provide and the direction. It's not as consistent. You can see this with the dealer tool as you can monitor the voltage the QS is sending to the ECU. IMO, this leads the strain types to being inconsistent. Some like it and it's not a problem for them, I did not. If you shift with a light touch, all the time, the strain gauge may be for you.

The HM is a strain gauge, and has adjustable sensitivity, which is something the Cordona lacks. I'd look for this feature, but the HM (at least anecdotally) have durability issues.

I got into a rabbit hole of QS nonsense while trying to solve a problem with my bike intermittently failing to downshift when using the QS. This ended up being because I changed the gearing. Returned the bike to OEM gearing and it's been great since. You can get away with very minor changes, maybe +2 rear or -1 front, if you are using the OEM profile 200/60 rear. Outside of that you're asking for problems.
I see. So more or less, the strain gauge was the solution for those that have chosen to modify the drivetrain and tires. Notes taken. Honestly, I don’t know that it’s not acting funny because of the slop in the oem lever pin and the play of the whole entire setup.

Thank you for the info. Much appreciated.
 
I see. So more or less, the strain gauge was the solution for those that have chosen to modify the drivetrain and tires. Notes taken. Honestly, I don’t know that it’s not acting funny because of the slop in the oem lever pin and the play of the whole entire setup.

Thank you for the info. Much appreciated.
Neither do I. I’m just not inclined to tell him it’s not happening.
 
spoke to the dealer today and they said they would have a look and check for QA faults. they seems to understand the issues of an intermittent fault.
It wont cost me anything to try.
And if they say no i will just put a translogic on it as i know they work.
 
I see. So more or less, the strain gauge was the solution for those that have chosen to modify the drivetrain and tires. Notes taken. Honestly, I don’t know that it’s not acting funny because of the slop in the oem lever pin and the play of the whole entire setup.

Thank you for the info. Much appreciated.
No, I think the strain gauge types are being used by riders attempting to get a better experience. If that works for them or they end up liking it is rather subjective. Changes to the driveline having an effect on the QS can't be fixed by going to an aftermarket QS. It's the ECU ignoring the signal to downshift because something, be it wheel speed to RPM etc. is out of a value which it expects to see.

Ducati had a service bulletin saying to reset the transmission adaptive values, perform a tire calibration etc., but if you take the driveline to far from OEM I think you're constantly going to be fighting it.
 
No, I think the strain gauge types are being used by riders attempting to get a better experience. If that works for them or they end up liking it is rather subjective. Changes to the driveline having an effect on the QS can't be fixed by going to an aftermarket QS. It's the ECU ignoring the signal to downshift because something, be it wheel speed to RPM etc. is out of a value which it expects to see.

Ducati had a service bulletin saying to reset the transmission adaptive values, perform a tire calibration etc., but if you take the driveline to far from OEM I think you're constantly going to be fighting it

It is fascinating to listen to everyone share insight into every detail from driveline to engines and the things that yall know are impressive. I can take just about anything apart and put it back together, but that doesn’t really mean that I understand the science behind everything and it’s been very enjoyable to learn new things.

I tend to be really soft on my QS and I’m probably guilty of not positioning my feet properly on the pegs and using a consistent motion with my foot. I wear a 12 or 13 depending on the brand and sometimes my foot placement is slightly off and probably the angle of my foot as well, so when I attempt to shift I’ve noticed that it’s not a very firm movement. However, that’s on my 1199s and I have pretty good feel of that QS. The QS on the v4s feels different to me and the linkage has room for improvement. Before I change it out I am going to ride it with the racetorx support and see how it feels. It’s supposed to be 70 on Monday which is very abnormal and I plan to take advantage before it gets back to the usual freezing temps.
 
I wouldn't put a lot on that part number change. IIRC, the 20-21 had a cooling duct and heat insulation around the QS and 22+ that configuration was revised. They dropped the heat insulation on the QS and changed the air duct and added more cooling vents in the lower fairing.

Interesting that the 2025 dropped this QS style all together. Instead it uses input from the gear position sensor to determine when the rider is making an up or down shift. The gear sensors have suffered heat problems before, so it's unknown if this new strategy will be problematic or not.
They moved it to the shift drum to help deal with false neutrals. The drum needs to be in its indent to select the gear and the gear position sensor. I think you would need to add some signal processing to this but seems to me like a good solution. Not only that if you toss it down on the shift side the switch is no longer vulnerable. Good idea IMHO.
 
No, I think the strain gauge types are being used by riders attempting to get a better experience. If that works for them or they end up liking it is rather subjective. Changes to the driveline having an effect on the QS can't be fixed by going to an aftermarket QS. It's the ECU ignoring the signal to downshift because something, be it wheel speed to RPM etc. is out of a value which it expects to see.

Ducati had a service bulletin saying to reset the transmission adaptive values, perform a tire calibration etc., but if you take the driveline to far from OEM I think you're constantly going to be fighting it.
I am just hoping I won’t need to change the gearing if that’s the case. I wonder how people get around this as the gearing has to be changed if you want the bike optimised different tracks
 
I am just hoping I won’t need to change the gearing if that’s the case. I wonder how people get around this as the gearing has to be changed if you want the bike optimised different tracks
On the Euro 4's you can use an OBDstar or equivalent to reset the transmission adaptives as BP mentions. The range of gearing that can be used "for closed course use" is listed, I thought, somewhere in the service manual? Anyway you should be able to recalibrate to any ratio's listed (pretty liberal). Insure you can do a calibration first with your existing sprocket set. Assuming it works you can then change the gearing, reset the adaptives, and do another calibration. Should work. On the Euro 5's, has anyone successfully done this? You may be locked out on the Euro 5's.
 

Register CTA

Register on Ducati Forum! This sidebar will go away, and you will see fewer ads.

Recent Discussions

Back
Top