Super boost frames use wider 148 mm or 157 mm rear hubs and therefore require wider cranks to fit the 55 mm – 56.5 mm chain lines these bikes have.
Quarq makes the Quarq SRAM XX1 Eagle DUB Power Meter Crankset. This is a spider-based power meter that measures power from both legs. When ordered with the Super Boost 55 MM chainline, it ships with the extra wide XX1 Eagle cranks and the resulting chainline is super boost 55 mm. Please note this crankset requires a SRAM DUB bottom bracket.
Please also note, if you already have the SRAM XX1 Eagle DUB 8-bolt 55 mm cranks on your bike, you can order just the power meter in the Boost 52 MM chainline (without new cranks) and bolt the power meter directly onto your existing 55 mm cranks and the resulting chainline will be 55 mm.
There are also a few other options that will fit a super boost crankset. Please see our article on super boost MTB power meters for more information.