Not sure actually how many 1098 gearboxes lunched themselves where a quick shifter had been fitted but enough for it to become a “common” problem. A least a couple of owners on here went down the Nemesis route on their 1098Rs. Andy
As my 1098S is a road bike and I'm not chasing 10ths, I deleted mine. Had heard stories off buggered boxes, so it became the best reason to get rid. I might have said that before. Anyhow, I like using the clutch.
My 1098R came with a Translogic already fitted. I don't use it but it's still there. Not sure if the R gearbox is less prone to lunching itself with a shifter but not prepared to risk it!
Apparently there's a new part number for 4th gear, so that potentially says something about a common issue.
Picked my bike up from Desmoshed today after its full rebuild. Interestingly, when it comes o diagnosing the cause, he noticed that the bolt for the clicker arm that locates in the star shape at the end of the drum, was cross-threaded and that had caused the arm not to be aligned perfectly. That could easily have contributed to the 4th gear failure. Also interestingly, the part number for the clicker arm has been superseded and the design changed ever so slightly. Anyway, all that labour load of new gearbox components, obvs a full gasket set, all the other bits needed, plus belts, all service items etc....it's been an expensive day. But the bike's now better than ever and sounds literally perfect.
Just inside £2.5k all in. Bearing in mind what a full service with belts would've been on its own, and it needed one, I'd say less than two grand in real* terms. *This incredibly tenuous explanation was brought to you by man maths - justifying the financial decisions of middle-aged men the world over