1. B B SIS 2. EE 5 i me i lbw H b HL MM 1 50 Hn a 1 a ll Lj MM 3. SIS SP41 DURA ACE ST 3400 FD 3403 SI 0042A 001 ST 3400 SORA ST 3400 SP41 27 FD 3403 FC 3403 RD 3400 GS FH 3300 4. CS HG50 9 CN HG53 B B SM SP17 0570 031961 3 77 590 8577 a a b 0 7 b a b