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Anyone say what i2i is please, and any other advice for selecting the ideal shock for this frame will be appreciated
TIA
Have you tried dropping Pace an email? Can be a bit hit and miss on speed of response but they usually get back to you.
If it helps, I've got an old RC405 knocking about at home that I can measure up later on. There were lots of similarities between the RC405 and RC506, but I'm not sure if the extra travel on the RC506 was achieved by same linkage/leverage with a longer shock or same shock with different linkage/leverage. The RC405 is currently fitted with a Fox RP23, with a volume reducer to increase the spring rate a bit. With a little bit of fiddling, that felt a big improvement on the rather basic DT Swiss shock that it came supplied with.