2018 1200 Bonavil Speedmaster Gearbox

My gearbox is fine

 

Yeah but what about the Speedmasters gearbox!

 

Have heard about some possible gear box issues on Stuart Fillingham s YouTube channel, he is collecting info I think ! Mine is OK at the moment.

 

Yes, I get a clunk/click going up to third gear, thought it was my inexperience on a big bike.
All other gears are fine.

 

Agreed, ask your dealer for the triumph warranty department contact details...

 

13000km and still smooth. I find first can clunk if I move off again quickly after stopping, like after leaving it running in the driveway to open the garage door.
Always smooth in the morning and clean on each gear up and down.
Hope they sorts yours @Max Holt

 

I said about this issue to dealership when I took the bike back for it's first service , they test rode the bike and said it works ok and ask how I use the clutch lever ,the problem was I was pulling in the clutch lever fully in to the handle grip through the upshifting , they said to only pull it in half way and it seem to work the other thing they was to use only two finger to pull the clutch lever in but third gear still clunk if I shift to quickly .
Cheers

 

Have the clunky gear box on mine too..first and second usually okay but third and fourth are loud...Just thought it was me..

 

My thoughts. I notice the "clunk" if I try to shift to early. Seems to be better if I wind it out a bit more right before the shift. Like Jackzone said, the clutch does not need to be pulled all the way back to the grip when changing. I also adjusted my clutch lever in (toward the grip) a little more and it seems to help.

There is an issue but not bad enough to worry about. My last bike "clunked" for years and was never a problem.

 

Yes you maybe be right but the guy who told me about the finger trick , has had a lot of Triumph over years so this has been around for some time and the two finger on the handle grips does work for me and when I pull the clutch lever in fully I still get a clunk in third some time second gear , you could say it's adds a bit of character to the bike which has abundance of character cheers

 

Pulling the clutch lever fully to the handle bar grip , is compressing the clutch springs too much. This leaves no space for any movement originating from the gearbox as the gears are trying to mesh - hence the clunk , many gearbox problems reported by owners are operator related and not a fault with the machine.

 

I just wonder if driving cars with synchromesh gearboxes makes some riders less careful about matching road and engine speed in a motorcycle constant mesh gearbox? If you ride long enough you maybe forget what has become second nature or have ingrained habits slightly alien to a new bike.

Without being overly technical (I couldn’t be!) cars have devices (synchromesh) that bring gears to the same speed before meshing them. Bikes differ. You can’t go from 1st to 6th except via the intermediated gears whether you engage drive or not. The dogs that shunt the gears sideways are pretty clunky things to accommodate rough changes. So, provided the clutch is properly adjusted and warp free the clunking MUST arise because of a slightly brutal slap in the mechanism. Because the thing is in constant mesh you need some rotational play between shafts to be able to change gear at all.

Or so I imagine......

 

Callumity , you are correct .. ! And having no play or movement left in the clutch because it is over extended so to speak , your clunky gear mechanism will be louder and harsher when you change gears when you haven't allowed them much chance to slide into the next gear with maximum freedom.

 

All I can say it works for me !!