It's 7-speed spacing Joe. I can tell from the side view, and all 7-speed cassettes in general on 8-10sp bodies require a 4mm spacer, hence why those keyed spacers are made by Problem Solvers, for example, among many.
Also, S-Ride's 7-speed cassettes are configured by leaving off one cog from their existing 8-speed versions. For example, their 11-42 8sp cassette has 11,13,16,20,24,30,36,42 cogs. >From this one cassette they leave off a high or low end cog to arrive at their 7sp 13-42 and 11-36. The 7sp 13-34 is their 8sp 11-34 minus the 11. https://www.s-ridebike.com/uploads/1/3/8/0/13808747/cassette-tablerev4_orig.jpg Yes, the table doesn't show the Riv versions based on the 8sp 11-42 and 11-34. Riv must have asked to have it reconfigured from S-Ride. No new parts needed to be made of course, just leaving off one cog high or low and presto magico ! Myself I've been riding a 9sp 12-36 on my Bombadil with a triple crank and only use the seven cog 14-32 portion. The innermost cog represent to me, what's wonky with the whole idea of cassette hubs when they went from 7sp bodies to 8, the further you go to the hub center the greater the chain angle. That cog is also closer to the spokes. Even with a 45-46mm chainline crank in the middle ring the large ring feels wonky, to me at least. Wider chainlines obviously only add to that. So rather than remove the cog I simply "let" the 36 be a spoke guard, so to speak and adjust the RD to the 32. I'm fluent in "front derailleur" so shifting up and down rings is toally natural and effortless. Something has to give with hub design, they can't keep going towards the center, and while they may make chains even more narrow, you're still trying to bail out a sinking ship. Stuff that works like 7-speed hubs needn't be tossed aside in the name of "progress" or "innovation" as those are just sales pitches to get you toss perfectly good working parts. In perfection there is no "progress" ! That why Perfect is Perfect and what's not is not... "never shall the two meet". -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/9ae7f5e3-0666-4844-a40b-8c4c6b010ef7n%40googlegroups.com.
