Rear Wheel Nut Torque Spec (± 5%)
Diavel, Monster 1200, Multistrada 1200, SBK 1098, SBK 1198, SBK 1199 Panigale, SBK 1299 Panigale, Streetfighter 1098, 2017 Supersport all use a 55 mm nut. Torque this nut to 230 ± 11 N·m. (170 ± 9 lb·ft)
Important: Grease is specified to be applied to the axle threads and underside of the nut in order to achieve the correct torque listed above.
The proper method is to torque to the lower value and check for alignment of the hole in the nut with one of the holes in the stub axle. Then tighten the nut further to get alignment.
If you incorrectly tighten to some unknown torque value, and then loosen to achieve alignment, you risk achieving a final torque that is insufficient to prevent wheel back-and-forth rotational movement of the wheel about its axle.
If the nut is under-torqued it will allow the nut to loosen, allowing the wheel to rotate in its mount and be damaged by repeated acceleration/braking impact loads that will ovalize the four locating pins holes on the backside of the wheel. Damage to the axle spindle can also occur. Also, a loose nut will back-off till it's stopped by the retaining pin, then bend the pin and deform the nut. It's a good idea to mark the nut position with a marking pen, so that you can quickly see if the wheel has moved after a ride.
This high torque makes the socket that you use even more important. In particular, you should machine down the hex end face of the socket if it has recessed flats. Otherwise, you'll only get partial engagement of the socket flats on the relatively thin nut. You'll need to anticipate slipping and damaging the nut.
Rear Wheel Removal
The rear wheel is held on with a 55 mm nut cross-drilled to accept a safety retaining clip that is installed as a safety precaution to prevent the loss of the nut. If the nut was not torqued correctly when last installed, the nut may have loosened a bit and captured the pin. This will prevent the socket from being placed over the nut, so you may have to cut off or pry the pin out.
You can expect that the rear wheel retaining nut will be VERY difficult to remove, usually requiring the use of an impact driver (or a long handle extension) to get it off. Over time it seems to get tighter.
A good way to keep the wheel from turning while removing the nut is to have a helper apply the rear brake lever with a normal amount of force. Be careful, too much force on the lever can break the rear master cylinder bracket which is the pivot point for the rear brake pedal.
Still won't budge? Get a longer breaker bar.