Speed Triple Rs 4th Gear Problems

Ok, I took the shift lever and foot peg frame works off and found the grinding feel is coming from the output shaft, or probably more accurately the gearbox. When the arm that attaches to the output shat is moved in either direction, there is a grinding feel through the shaft. I don’t know if this is what is causing the issue but its possible. I’ll have to inform my dealer.

 

Mine is exactly the same as you describe Steve. Definitely not the only one!!

 

Thanks for checking Burny.

 

Spoke to Triumph UK (I seem to have a good contact there now) yesterday about this grinding issue, and was also assured that the R&D team there have 5 bikes on test looking for a solution to this issue.

Although not confirmed, it did seem like they knew about this, and had an idea of how to fix it, it would seem that the clutch needs to come out, then the side case of the gearbox can come off the check / replace the part behind. This may be what Shandyboy is referring to. In my experience this solution does correlate well with the way the lever feels, if you pay close attention when moving the lever you can feel its consistent in both directions, indicating that is has something to do with the ratchet system in the shift mechanism.

I am going to continue to follow triumphs advice and may put my bike in to be checked for this issue in and around messing about with the HM shifter module.

 

Unfortunately it’s not a linkage issue, as I have found out a while ago. Some people have had the issue resolved with the new arm but it looks like most haven’t. I’m beginning to think this may never be resolved. I going to pursue a refund for the quickshifter soon, as I think Triumph has had enough time screwing about. If Triumph ever does get this figured out, and I’m still interested in a quickshifter, I’ll purchase the HM stand alone blipper/shifter.

 

Sorry for the delay in getting back, my triumph deale fixed my mates bike and it now works better than when was new. They removed the clutch casing then replaced the shift arm rod which apparently gets damaged due to false neutrals.
Once this is replaced works perfect !

Steve, I think this is the same arm your on about? It's the shaft that the new part with the chamfer out of it goes onto
Hope that helps

 

Are you referring to the output shaft? It’s the rod that comes out of the engine that is splined on the end?

 

The more I think about it, the more I don’t believe that’s the issue. My reasoning is that from brand new with no damage to anything, it false neutraled. Then a brand new gearbox, new quickshifter and linkage arm, it still would false neutral. My dealer thinks they will have some answers from Triumph UK later this week, if so I’ll post it.

 

The more I think about it, the more I don’t believe that’s the issue. My reasoning is that from brand new with no damage to anything, it false neutraled. Then a brand new gearbox, new quickshifter and linkage arm, it still would false neutral. My dealer thinks they will have some answers from Triumph UK later this week, if so I’ll post it.

 

Yes, I think so, the replacement rod worked for him?

 

hello,

I think, it's the part number 13 the spring is too strong ....

 

That's the one

 

Steve - I think it's important to establish whether at the simplest level there's either a) a gearbox fault or b) a quick shifter (or linkage clamp) fault.

I've read comments that say that the 2018+ RS has a faulty gearbox, but I don't think that's true. When you say that you experienced false neutrals from "brand new with no damage to anything", isn't it the original faulty linkage clamp that caused your damage in the first place?

Once the internals of the gearbox are damaged, then fitting a new QS or linkage clamp is just "polishing a turd" as we say in Essex.

Take my March/April 2018 RS for example - I have the telltale mark on the linkage clamp where it comes into contact with the barrel of the QS. I've never had a false neutral and stopped using it above gear 3 as soon as the issue started to surface on the forum. Triumph said they would replace the linkage clamp with the modified version, but that hasn't happened yet (I've let it slide while this issue matures).

Given that my 'suspect' linkage clamp hasn't yet caused any damage, if it were replaced with the modified version then theoretically I should have a perfect bike.

I'm hoping that everything can be traced back to the 'domino effect' caused by the original linkage clamp design.

Does this make sense?

 

It does make sense for the first gearbox, as that domino effect could have been the issue. What about the second gearbox though? It had brand new everything as well as new quickshifter and linkage arm. That’s were this train of thought and logic falls apart in my view.

 

Perfect sense to me mate!

It's possible that the 'tell tale' mark, is causing damage so 'shaft 13' (unlucky for some) as it shall now be known....
This damage may be to the spring, some other internal items, or in fact just bending it slightly, thus causing the re-occuring issues.

As I state in one of my first posts, this 'tell tale' is not an issue for everyone due to the acceptable tolerances within cast parts such as the linkage arm.

IF what you theorise is correct, then people with no complaints should be receiving a new linkage arm FOC at their next service, or just by calling in.
Those who have had faults should replace the linkage arm QS unit and 'Shaft 13' hopefully fully rectifying the fault. (perhaps an inspection of the gearbox internals/ oil dropped and inspected for debris would be a sensible precaution too)

 

What about my second gearbox with “everything “ brand new including part 13. How do you explain that?

 

I agree it really doesn't explain the second gearbox and all new parts. Unless you've just been HUGELY unlucky. I really feel for you!

 

Was this before or after the updated linkage arm was fitted?

 

I appreciate that MrT. Maybe one day Triumph will actually resolve the issue for everyone, I’m still hopeful.

 

Steve how old is the bike ? and whats the milage mate?

The reason I ask is after all your troubles the bike is still not fit for purpose so ask for it to be replaced, you are quite within your rights as they have attempted the repair and its failed. You might have to pay some depreciation but triumph usually reimburse the dealer this will get you on a new bike