1x SCL82-17 - 21x27 3rd gear DIRECT
This part includes both primary and secondary gears.
This is the 3rd gear from the direct set of ratios:
14x29
17x27
21x27
21x23
25x24
22x19
Ratios are not interchangeable between Direct and Overdrive sets.
Part no 11 in Manual page 10 (Exploded view page 3)
 
Part as photo