The SID XX is similar to the SID World Cup with the use light alloy in the steerer tube and crown, instead of carbon fiber. The result is approx. 150 grams of added weight and a large savings of dough. So if you want top XC/AM performance in a lightweight package while trying to keep your project on budget, the standard XX is a great choice.
The 32mm alloy stanchion tubes have travel indicators scribed onto the outside of the legs to help you set up the fork with the correct amount of sag. Magnesium lower legs have Rockshox's Power Bulge with is an external butting of the material or bulge to reduce flex.
One of the many highlights is the XX Motion Control. It features Proprietary Solo Flow technology which helps separate the larger and small hits and allows the shock to handle both types of impact, separately. The days of setting your shock up for only big hits OR small hits are over. The handy XLoc remote lever is hydraulically operated and is the best lockout lever ever created. This can be used as a standalone lever or paired with SRAM's trigger shifter via the Matchmaker assembly which is included.