Joe, I bet you’re right about that! It is constant and always in the Hard-Hard gear, which is what I nearly always ride. I shall save these words and tell them to the shop when I get my bike back, do a test ride in the lot and invariably it makes the SAME noise.
Ben, it seems that way to me, too. The wiring is probably the weakest link. I wish I knew some real-life Riv folks who would let me bike right on over and put my bike in their stand for diagnosis! Someday, I hope... Leah Sent from my iPad > On Apr 24, 2021, at 4:00 PM, Joe Bernard <joerem...@gmail.com> wrote: > > The rhythmic noise sounds like the chain barely grazing the front derailer, > like what would happen if the chainring is ever so slightly out of round. In > this scenario you could think you have the cage centered over the chain, then > not notice the chain wobbling over to graze the cage while pedaling. This > issue can be exacerbated by using a 9-speed (wider) chain with a 10-speed > (narrower) derailer, which I suspect is the case on your bike. > > The other sound? No idea! 🤷 > >> On Saturday, April 24, 2021 at 3:14:36 PM UTC-7 Bicycle Belle Ding Ding! >> wrote: >> Oh, it’s not your fault, Ben. I am overly attached to this bike and I’ve >> made myself a wreck over it. >> >> As far as the noise, there is more than one. But there is one noise that >> sounds kind of like electrical current, and it never came at a predicable >> time - like with pedaling. It would cause a little vibratory feeling and was >> loud enough that I could pick it up using my iPhone to video. Last night it >> was nearly constant and seemed to coincide with the turning of the pedals. I >> caught it on video, which I will attach here. There are actually two sounds >> being made, I think one is drivetrain chatter that I’m hoping the shop sets >> straight for me this week. You have to tune your ear to it but if you listen >> you’ll hear two atypical sounds - sort out the wind noise and listen for a >> rhythmic sound and a constant chatter. They’re there. >> >> The sound when the wheel is spun with the bike stationary is slight, but >> annoying. I don’t have that on video and the bike is now in custody of the >> shop. But if Shutter Precision managed to make it quiet, why can’t Schmidt >> do the same? And the flickering. That occurs at speeds that I think are fast >> enough to generate a solid light. At the same speed a SP will hold a steady >> beam. I know SON is the reigning champion for dyno, but why? >> >> Here are the videos. The first is a better specimen, I think: >> > > -- > You received this message because you are subscribed to a topic in the Google > Groups "RBW Owners Bunch" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/rbw-owners-bunch/2Bte2sgNeQU/unsubscribe. > To unsubscribe from this group and all its topics, 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/04cd26c0-c2f4-4ea0-9214-440740ecd178n%40googlegroups.com. -- 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/0D879894-8037-482E-8694-8FB2D0F91DE4%40gmail.com.
