The source of my pride the RB was in bad shape in 2026 and had difficulty in sourcing the parts and the budget
1. The ergo shifters. The right side had torn hood, the left had broken padel and therefore effectively the bike was 1x
2. The crank, a 52 -36 had shark teeth all ready. I need a crank. The 52 -36 was replaced by 50 -34, I found out that both combination had same bcd 110
Fortunately for VM who maintains inventory of parts, he supplied me, no payment first (very expensive) and had Jess Verchez install this for free. Now the bike has bn parts and look rejuvenate - like brand new. Thank you VM and Jess