I get the impression that the 400i ABS
is being released first!
There is currently a 600cc model Sym for sale but its this one:
SYM Quadlander 600LE
As of this date it would seem that the sole appearance of the Maysym 600i ABS
model has been at a show; 2011 EICMA.
2011 EICMA: Sym Maxsym 600 and Joymax 300
2012 Sym MaxSYM 600 Review
Sym Maxsym 600i is basically a bigger version of the 400i, with bigger engine and standard ABS. Aesthetically it is just like the its little sister, and maintains all of the key features of the model: comfortable riding position (thanks to the huge saddle), huge loading capacity, sharp dual projection headlights, telescopic fork, great aerodynamic protection (thanks to the big windscreen) and 15″ front 14″ rear wheels fitted with 120/70 and 160/60 tyres respectively.