John, what you say is true. Nitto products are expensive and should work perfectly. And even though you’re right and I should talk to Riv about this, I don’t think I can do it. If I discovered it was the bar (which I purchased from Rivendell’s website directly), I would definitely ask for their assistance. But it feels like the acquisition of this Soma stem was a favor to me, so I’m chickening out about complaining.
I’m still not sure which part is the defective party. 1. The SomaFab Nitto stem worked wonderfully with my 55 cromo Bosco bar. 2. I switched the 55 for the 52 aluminum Bosco and THAT’S when the noise started. 3. I then swapped stems to see what would happen. Replacing the Tall Boy with a regular Technomic stem and my new 52 aluminum bars = no noise. 4. Still not willing to leave well enough alone, I lubed the stem/bar interface and put Tall Boy back on the bike with new 52 aluminum Bosco (which was the setup in question) and no noise. I fear I may never know. 😔 Sent from my iPad > On Jun 18, 2020, at 12:26 PM, 'John Hawrylak' via RBW Owners Bunch > <rbw-owners-bunch@googlegroups.com> wrote: > > > Joe > > I would expect Nitto to have designed the tolerances of THEIR stem and THEIR > bar to mate every time, if both are labelled 25.4mm. IF a problem occurs, > Then it is POOR manufacturing, and not a "Oh Well, that's how it goes, we > just have to accept it". Certainty not what we expect from Japanese quality > for a pretty pricey stem, $99.99 on the Soma site. > > Based on what was stated, the noise still exists with the nut tightened with > a wrench holding it. A shim would correct the dimensional mismatch and is 1 > solution. > > These problems are typically a 'chicken/egg" problem, was the bar always > undersized or was the NEW stem oversized. I suggest the stem is the problem > as it was the last change. The bar can be measured for clamp area diameter, > 25.4mm per Nitto catalog & and ovality. > > As others have pointed out, any liquid lubricate does not stop movement due > to dimensions not being correct. > > Finally, I think RBW has some responsibility in this as they sold Leah the > 280mm quill Technomic and it appears to have an oversized stem clamp. Grant > is not shy about stating how close/well they work Nitto. This is a chance > for them to prove it, help Leah with her problem so she is : > 1. a satisfied customer > 2. Does NOT have lingering fears of riding, due to noises made by the > manufacturer not adhering to tolerances. > Note, I am faulting RBW for not knowing this when they sold it. They > specified the correct size stem for the bar and there is no reason to check > it ahead of time > > John Hawrylak > Woodstown NJ > > > -- > 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/FHIW1F5qAE0/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/90ebc65b-c09f-4b39-81ef-6430b2084768o%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/CBEABED3-050B-4C05-A9A6-31747E37E146%40gmail.com.
