Dear folks, as an r80 is somehwqta cheaper then an r100, and the first will have less wear on the drive train as the r100 i have a quaestion about converting a 800 to 1000cc. I know about the siebenrock kits. quite expensive..The lower weight of the pistons is cool, will wear less on the bearings, but the higher compression i do not like.. want to keep octane 95 possible as fuel and don't like the extra wear.. So, i think the most basic is swapping the pistons and barrel;s from a r100? but i guess the cylinder heads also need to be exchanged, the r100 head will have bigger valves? also carbs? finally the final drive will need a diffenrent set of crown- and pignon wheels.. Does anyone here have experience with this?