On Sunday, November 26, 2023 at 12:34:51 PM UTC-6 Jason Fuller wrote: I would echo that triples are pretty nice - not only do you get more range, but the 10-tooth jumps in the front are a lot less 'disruptive' if you know what I mean. I find the smaller chainring jump means that when I hit the base of a hill I can often just drop a chainring and leave the rear alone, and it is a natural gear reduction .. whereas on the wide-low double, you would be spinning like crazy if you tried the same thing
Excellent point, and one that launches me into bike nerd mode... apologies in advance if this is too much. The "standard" chainring gap became 16 teeth when "compact double" 50x34 combos became all the rage. That's a 39% jump, the way I measure it (Ln(50/34)), or about 2.5 times the 15.4% jump from 18 to 21 in back. Now, if you keep that 16 tooth gap but go down to 40x24, that's a ginormous 51% jump, which is 3.3x the 18-21 jump. I have a 42x26 on my Waterford ST-22, and it's definitely jarring to drop to the small ring when you hit a hill, requiring a bit of advance planning to shift a cog harder in the rear, first. I spent plenty of time riding half-step gearing, so I'm facile with double-shifting, but after a couple hundred kms I'm too tired for that. For my Breadwinner G-Road I went with 44x32, which is a gentle 32% jump. It means there's more overlap in the gearing, or to put it another way, I'm not maximizing the total range of the system, but I very much prefer to make that trade-off. At 41%, the 14-tooth gap on the Silver 42x28's on my Sams is pretty much the outer limit for me. The Wide-Low (38x24) is a 46% jump which is pretty high. Ted Durant Milwaukee, WI USA -- 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 rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/1a3954ba-86af-4775-8090-f3e4bba4fa44n%40googlegroups.com.
