The first AM Cup they can't even use SS for the xc....check this out. If you want to race SuperD they are making ya follow the new rules.
Super D. - The Chair will be open and you will have to meet their requirements and they are:
1- Bikes must be less than 35 LBS.
2 - The tire size must be less than 2.5
3 - Front shocks must have less than 6 inches of travel.
4 - bikes must have 3 chainrings
http://www.teambigbear.com/event_detail.php?event_id=109
Super D. - The Chair will be open and you will have to meet their requirements and they are:
1- Bikes must be less than 35 LBS.
2 - The tire size must be less than 2.5
3 - Front shocks must have less than 6 inches of travel.
4 - bikes must have 3 chainrings
http://www.teambigbear.com/event_detail.php?event_id=109