There are many cons and pros for both sets, but to make a story short 21″&18″ set is recommended for enduro or/and for tall riders, 19″&16″ set is recommended for motocross or/and for short riders.
There are many cons and pros for both sets, but to make a story short 21″&18″ set is recommended for enduro or/and for tall riders, 19″&16″ set is recommended for motocross or/and for short riders.