There is an official accessory for the KTM 1290 Super Adventure S to attach a navigation system to it.
So far I have attached my cell phone to it using SP Connect. I no longer wanted to expose it to the vibrations.
I suspected that the Chuigee adapter might be just right for the KTM mount and this proved to be the case.
The screws supplied were far too long. Otherwise it worked great.
I also had to attach the appropriate cable lugs for KTM to the power cables to be able to use the existing ACC1 and ACC2 power connections.
I bought my Chigee after seeing it on a RiderCamTV Video on YouTube, (https://www.youtube.com/watch?v=pnCAfMtkpww&t=845s) good vid take a look yourself) I could not be happier with the product or the service absolutely superb on all fronts. Well worth the money.
Nicely made, quality product.It fits together well. So why only 4 stars? Well better instructions would help. But the main issue is that if the Nav prep is removed the unit will sit deeply in the recess. It will look good there and may get better sun shielding but accessing the four top buttons will be difficult with fingers and impossible with gloves. I kept the Nav prep and made a spacer to bring the unit forward so that I could access the four buttons and the four underneath slots more easily. Others have used the fork mount and cut a hole through the Nav support plastic. That might work better, the unit will sit more forward from the surrounding plastic recess and will permit adjustment using the ram ball.
I used this "BMW" mount to make the Chigee fit directly onto the KTM GPS bracket (2017 KTM 1290GT).
Just had to use some shorter M4 bolts (10-15mm)
the adapter is abit disapointing