Next addition; the "longer" malossi gear set for the final drive.
Installation was not all that much work or difficult but you do need a tool to press the ingoing shaft out of the crankcase and after that to pull the bearing of the shaft, alternatively gently heating the crankcase with a torch (cover the seal with a big washer) will get the shaft also out the crankcase and with a big vice you can push the bearing of the axle (NEVER use a hammer on bearings)
If you also want to do this mod i also strongly recommend to first buy a new drive-case gasket as it will almost certainly break when you take the 2 cases apart.
Before taking it apart wash the back end of the bike thoroughly to remove all sand and dirt and when you start unscrewing the bolts use a piece of cardboard to stick the bolts in so afterwards when you have to put them back you know which one goes where, they have different length and if you screw a long one in the short cavity you may ruin the case(!), the difference is only 5 mm(1/4") so beware.
The effect: top speed has gone up from 110 km/h(68 mph) to 120-125 km/h(75-78 mph) with an absolute maximum of 135 km/h(84 mph) going downhill, at 130 the rev limiter starts kicking in so in normal use it will not go over 130.
In other words; where i resided with the practical limitation of not being able to overtake on the highway and was bound to the far right lane i now can overtake other traffic with ease
I even drove it on the mid to left lanes without any problems with other traffic on the only piece of 6 lane (x2)highway we have in Holland near Amsterdam/Schiphol airport during rush hour.
Acceleration is now of course a tiny bit less but still more then adequate to outrun any car in normal traffic and certainly still quicker compared to a standard SH.
Because of the longer final gear which opposes more load to the variator the rpm has gone a bit down, this also contributes to the slower acceleration, i am currently at 9.2 grams so i will have to start looking for a bit lighter rollers, once i have these in there is a good chance acceleration will be again up to almost the previous level.
The chassis; Its clear why honda limited the topspeed of the bike to about 110 km/h, at 120 km/h there is a slight tendency for weaving on the backside the correct word for it is caster flutter or shimmy, on long highspeed cornering this can become a bit worse and makes the whole bike feel a bit unstable, its probably due to the rather soft suspension at the front.
At highspeed the front end goes a bit down due to the wind pressure and the back goes up because of the drive force(you can notice this by the change of the horizon line in your mirrors),therefore trail and caster become less and so the back end starts to weave.
Raising the front end a bit so at high speed steering geometry stays on the plus side usually cures it so thats also added to the "to do" list,
It would involve putting a shim on the frontfork spring, this does not stiffen up the spring as the spring stays the same with the same spring constant but it would cause the front end to raise up out of the tube more.
Ive just been out on a sushi meeting with the whole moderator team of another site i mod, the trip was a good 200 km (125 miles) and after the first few dozen miles i got comfortable with the higher topspeed and there is only one thing i can say; i should have done this 2 years ago, the bike is now definitely "highway capable".