No, all the same.
The roller are like new and all weight between 25,03g and 25,17g.
When the bike was new, i don't have check the speedo vs gps, but the speedo reach 121 kph @ 7050 rpm and now 107 @ 7750 rpm (my GPS and Speedo read exactly the same). This is with a brand new belt. Before the new belt the top speed have dropped to 62 mph (100 kph)