I have just finished installing the Helibars off my K1200S onto my K1300S.
It was fairly straightforward but as you will see, not something I would advise you to do!
The right hand bar on the 12 has no location holes for the switchgear in it because the switch / twistgrip assembly is held in place with a clamp.
However, on the 13 it is held by a screw going right through a clearance hole in the bar and screwing into a tapped hole in the bottom of the twistgrip / switchgear housing. It is the Torx screw shown in the centre of this image....
This a shot of the Helibar loosely in place, showing the radial orientation of the new hole and the distance from the 'boss'...
The hole needs to be 3.5 mm dia but depending on how good you are at drilling vertically in the middle of a round bar, you may need to make it 4mm
I got away with 3.5, just!
The radial position of this hole is not too critical as it only affects the rotational position of the Start/Stop and Heated Grips switch, not something that is too important.
The left bar, by comparison, is more tricky. The 12 Helibar already has a hole drilled right through the bar into the opposite sides of which screw two self-tappers, just under the inner edge of the rubber grip.
The 13 bar however, has a clearance hole drilled right through the bar through which goes a screw that locates into a semi-captive nut in the grip / switch assembly. Needless to say, the clearance hole for the 13 bar is in a different position radially than the 12 bar, and also a slightly different position longitudinally.
This shot shows the head of the screw that needs to be removed from the standard left bar to remove the grip / switch assembly from the bar....
And this shot shows the position of the new clearance hole (on the left) that is needed for the 13 bar, compared with the original hole for the 12 bar.
Note how close together these holes are and also that they intersect each other in the middle of the bar. This is NOT ideal as it will weaken the solid alloy bar at this point, and this is why I cannot advise others to do this transplant! In my case, I am fairly sure that in nirmal use, the bar will be fine. However, being a dork, I stand astride my bike and push it off the centre stand with a combination of crutch and hands; this force on the bars may prove to be my Helibars downfall, and mine I guess
I intend to remove the left bar and drill out the original hole, fill it with a piece of aluminium rod araldited tightly in place, re-drill the new hole and re-fit everything!
Brian (who thinks if you don't hear much from him in the future, you will know the reason
)
NB Having helped Lachlan to fit K12S Helibars to his K13S, this article has a minor flaw in it. One of the piccies shows the longitudinal (and radial) position of the hole that needs to be drilled in the right hand bar. Whilst the position of the hole was correct for my bars, Lachlan ended up with a large gap between the outer end of his right grip and the inner end of his bar end weight.
So, before dismantling everything I recommend that you measure the distance from the inner end of your bar end weight to the outer end of your right hand switchgear and modify the position of your new hole accordingly.
