Omron F3SG-SR/PG Manual page 56

Adjustable Top/Bottom Bracket (F3SG-RA/RE Adapter) (F39-LSGTB-RE, sold separately)
Adjustable Top/Bottom Bracket (MS4800, F3SR Adapter) (F39-LSGTB-MS, sold separately)
12
4.6
3.2
47.7
12
4.6
3.2
47.7
32
15
20
Material: High rolled steel (SPHC)
32
38.1
52.8
Material: High rolled steel (SPHC)
F3SG-SR/PG
56