Originally Posted by
Abu Mahendra
Except that the SDD is quite sturdy and not likely to fail. A comparison to multi-speed IGH is apples and orangutans. SDD is its own different thing. My 20" wheel bike has a range of 20-119 gear inches due to the very reliable SDD.
Uses SRAM X7 RD and equivalently spec'ed parts, equivalent to Shimano Deore LX probably.