Instinct Carbon:
No.85-1 0mm Offset Headset, complete
These headsets use:
Top FSA Stainless ACB 1 1/8" 36°x45° Bearing
Bottom Stainless ACB 1.5" 36°x45° Bearing
FSA Part Number: 14100078000013
RMB Part Number: 1194001
Instinct Alloy:
RMB ZS56|66 0mm Offset Headset, complete
Headset Cup Set 1194004 RMB Upper ZS56 | 5mm Offset Cup Set
These headsets use:
Top FSA Stainless ACB 1 1/8" 36°x45° Bearing
Bottom Stainless ACB 1.5" 36°x45° Bearing
These headsets are purchasable via bikes.com. or your nearest Rocky Mountain Dealer.