I've got some CRAZY learning curve happing right now. Just like back in the day when I compared a string on a spoon to a pencil on on the same string. The CVT is opening it's doors to me. Without getting all nuts on the topic... The belt wear is a symptom of an imbalance of HP/Torque vs load on the rear wheel. Just like tuning a STOCK scoot for better Perf. WE have to find the magic ratio of HP/rpm/mph/realistic belt capacity. I'm thinking this forum has opened a door that even the TOP tuners don't see. Belt wear CAN be eliminated. (crazy right) We are tuning to a point where more HP = more stress. I think it should be the other way around. More HP = better better belt wear, (right)!
Soooo Making CRAZY high gears makes less rpms. Less rpm's makes less stress, and more usable top end. So using taller gears will allow the engine to rev slower, and reduce the belt wear. Sorta like a Salt flats bike that is geared to 200+mph. and can't do a wheelie to save it's life. Scoots are like a dirt bike in reverse. I rode MX ALL my life, and pulling power was king. I have hit a wall with pulling power in scoots. They need to be reversed. NO PULLING POWER IS NEEDED. Make them TOP GEAR machines. This may take machining gears we don't have yet but I do know a few guys that can make the gears we need. F*ck Polinni, and Malossi, and Every other maker of "race parts". I think if enough time is spent away from the "cookie cutter" parts makers a new door will open. I am aiming for a 6.7:1 final drive with the Polini Corsa. That is another "cookie cutter" bike. I don't like the idea any more than buying a Ruima on Ebay. It's the SAME OLD sh**! But Maybe with a 2.5:1 ratio and a Bando belt hooked up to a pulley drive there may be a 100mph scoot in the near future.
I know this did NOT answer your question/statement about your belt wear but it might open another door that will. I blew thru 3 Vars/4-5belts on the Ruima. It did not impress me as a World class scoot although it may well have been. I got the Polinni Corsa R jug today, and it is a tiny POS in MY opinion. Nothing better than th Malossi as far as size. The Port timing is of course different, as is the angle of the port roofs but the cc's are the same, and the quality of the delivered product is similar.
Bottom line is I believe the WHOLE key is in CVT tuning more so than jug kits.
I'm setting the jug on a standard stroke crank/Jassil var/Naraku TD-clutch/Malossi bell. The final drive is 6.8:1 with the gears I have, It should do 70ish air cooled, but for how long? I'm thinking 80+ with some custrom geras, and a TRUE 65criuse. We'll see.
To answer your post... The torque/contra/roller weight is eating your belt.
