what does the stripe have that the regular m821 doesn't as far as rear shock?
did yours not come pre set at 1.5? I have it set at .05 which feels like it did when I first bought the bike. I tried 2.5, it was worse. but I don't really understand why. the roads here are terrible but the bouncing feels more stable in sport rather than comfortable.I initially found the twitchy front end quite entertaining and then rather tiring, so I ended up raising the rear end by 1 to 1.5 full turns and this stabilised the bike no end. It now turns quickly but is very stable too. Hope this helps.