OK, well that was a red-herring. You are right that they taper in a little, but the thing I'm talking about tapers in A LOT and only on the left side. This 7400 rear hub kind of shows it:
http://www.ebay.com/itm/Dura-Ace-Rear-Tubular-7400-Hub-Nisi-Countache-Rim-8-9-Speed-Excellent-Condition-/120914827269?pt=Cycling_Parts_Accessories&hash=item1c2715d805#ht_500wt_1361 Especially in the second photo. Yours look like the right part on both sides. The knurls do look kind of flattened out, but not in a way where I'd say "Yes, that wheel will slip, because of those knurls". Resume your debugging process. Anything else from my would be a wild guess. If you asked for my wild guess, I'd try those 'slow-release' levers. The ones you need an allen wrench to tighten. On chrome rear dropouts in the past, that's been helpful for me. I think they generate substantially more clampforce. On Monday, May 14, 2012 5:31:03 PM UTC-7, cyclot...@gmail.com wrote: > > Your wish is my command: http://www.flickr.com/photos/cyclotourist/ > > Alligators and Pacman... arrrgh, flashback to the 80's!!! > > On Mon, May 14, 2012 at 2:36 PM, William <tapebu...@gmail.com> wrote: > >> Both are bevelled? That's just weird or I'm losing it. Can you >> photograph it for me? >> >> And the alligator mouth wants to eat the bigger number, so you are >> looking for a >30yo mechanic, not a <30yo mechanic. :) >> >> >> On Sunday, May 13, 2012 11:19:57 PM UTC-7, cyclot...@gmail.com wrote: >>> >>> William, thanks! VERY interesting... kind of a cool feature on Shimao's >>> part. They are indeed old DA hubs from the 90's. 7700 series to be exact. I >>> converted >>> them to 135mm <http://www.flickr.com/photos/cyclotourist/2406321019/>four >>> years ago. I just checked and >>> *both *locknuts are beveled on the rear, but neither of the front ones >>> are. >>> >>> So, so, so, so... I'm gonna' see if I can find a non-beveled one I may >>> have lying around or swap one out from elsewhere and give that a try! >>> >>> I'll keep looking for the elusive <30 y.o. mechanic. Wish me luck with >>> that one! >>> >>> GREAT advice in this continuing saga! >>> >>> >>> On Sun, May 13, 2012 at 10:28 PM, William <tapebu...@gmail.com> wrote: >>> >>>> There is no way whatsoever for dish to have anything to do with this >>>> problem. It does no harm to have dish checked if you think it might not >>>> be >>>> right, but dish never caused a hub to slip in the dropouts. >>>> >>>> The reason the first generation of 130mm spaced dura ace hubs had a >>>> beveled locknut was to aid in wedging your 126mm frameset open to take the >>>> thing. That beveled locknut was on the left side, though, and we're >>>> talking about dura ace cassette hubs from the early 1990s. If you swapped >>>> parts around when you converted this dura ace rear hub to 135mm, then you >>>> actually might have solved your own problem. Specifically if you moved >>>> the >>>> left side locknut on an early 90's dura ace hub to the driveside, then >>>> that >>>> very well might be the cause of your slippage. Have that specifically >>>> looked at, preferably by a mechanic older than 30. >>>> >>>> On Sunday, May 13, 2012 8:57:55 PM UTC-7, cyclot...@gmail.com wrote: >>>>> >>>>> Jeremy et al, I finally got around to changing the wheelset out to a >>>>> Phil/Bontrager >>>>> heavy duty >>>>> wheelset<http://www.flickr.com/photos/cyclotourist/7193475208/in/photostream>I >>>>> have. Don't use it very much, so it wasn't the first thing I thought of. >>>>> Thanks for the suggestions to try that approach! >>>>> >>>>> Anyway, Phil w/ the same Mavic skewers led to zero slippage. I rode >>>>> the same route (although a bit slower due to a headache) as last week. I >>>>> purposely left the skewer a bit looser than I was using it on the other >>>>> wheelset (Dura Ace converted to 135 spacing). Not a problem at all! >>>>> >>>>> Soooooo, some combination of the DA wheelset with the bike is leading >>>>> to wheel slippage. I'm gong to get the dish checked out as suggested, >>>>> maybe >>>>> that is it? I noticed the DA clamping surface isn't fully flat. The edges >>>>> are beveled so there's not as much contact (why?). There's maybe only >>>>> 50-75% the contact surface that the Phil hubs have. Possibly part of the >>>>> problem. Buuuuuut, I have the same hubs on my other Riv w/ horizontal >>>>> drop >>>>> outs (DA skewers) and those never slip. >>>>> >>>>> Side note: This problem has been progressive. The DA wheelset is >>>>> probably three or four years old. No problems with my old wheelset, and >>>>> problems with the DA one seems to have come on slowly. An occasional need >>>>> to recenter here or there, but not several times during a ride like it is >>>>> now. >>>>> >>>>> So I'm currently back in love with my bike, but want all my wheels to >>>>> work. Things are getting curioser and curioser... >>>>> >>>>> Thanks again for the info and input on this, I'm really trying to >>>>> figure it out! >>>>> >>>>> >>>>> On Sun, May 13, 2012 at 10:57 AM, Jeremy Till >>>>> <jeremy.t...@gmail.com>wrote: >>>>> >>>>>> Is it clear when during your rides that it slips? Just spinning >>>>>> along, cranking out of the saddle, or spinning up a steep climb? I fear >>>>>> it >>>>>> may just be that your combination of horizontal dropouts, QR's, low >>>>>> gears, >>>>>> and steep California climbs that just might be too much for QR's. My >>>>>> success with QR's and horizontals is limited to road bikes with fixed >>>>>> gear >>>>>> drivetrains or compact double derailleur setups, which lack super-low >>>>>> stump-pulling gears. >>>>>> >>>>>> Have you considered converting the hub to a bolt-on (solid) axle? It >>>>>> might be the cheapest and simplest solution here. Just have to carry a >>>>>> 15mm box wrench in your saddle bag. >>>>>> >>>>>> >>>>>> On Saturday, May 12, 2012 10:28:28 PM UTC-7, cyclot...@gmail.comwrote: >>>>>>> >>>>>>> That's actually my plan for tomorrow. If it holds, then something's >>>>>>> wrong w/ the wheel. If it slips, the bike (or possibly the second wheel >>>>>>> as >>>>>>> well!). I'll report back as I know you all are on the edge of your >>>>>>> seats in >>>>>>> anticipation! >>>>>>> >>>>>>> On Sat, May 12, 2012 at 10:09 PM, rob markwardt < >>>>>>> robmar...@hotmail.com> wrote: >>>>>>> >>>>>>>> Have you tried a different wheel? >>>>>>>> >>>>>>>> On May 12, 8:37 pm, cyclotourist <cyclotour...@gmail.com> wrote: >>>>>>>> > That's an option. I've wanted Nano-clearance for a wile now... >>>>>>>> :-) But >>>>>>>> > aren't Atlantii blue? >>>>>>>> > >>>>>>>> > On Sat, May 12, 2012 at 8:25 PM, Michael_S < >>>>>>>> mikeybi...@rocketmail.com>**wro****te: >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > > I think a new Atlantis would solve your dilemma.... think of >>>>>>>> the big fat >>>>>>>> > > tires you could run ...... even Nanos. Vertical drop outs, >>>>>>>> check, no more >>>>>>>> > > problems, check. Plus you could get out of your blue bike rut. >>>>>>>> > >>>>>>>> > > Little devil on your shoulder ( mike) >>>>>>>> > >>>>>>>> > >> -- >>>>>>>> > > You received this message because you are subscribed to the >>>>>>>> Google Groups >>>>>>>> > > "RBW Owners Bunch" group. >>>>>>>> > > To view this discussion on the web visit >>>>>>>> > >https://groups.google.com/d/**m****sg/rbw-owners-bunch/-/** >>>>>>>> 2Mq5Vozt****EvUJ<https://groups.google.com/d/msg/rbw-owners-bunch/-/2Mq5VoztEvUJ> >>>>>>>> . >>>>>>>> > >>>>>>>> > > To post to this group, send email to >>>>>>>> rbw-owners-bunch@googlegroups.******com<rbw-owners-bunch@googlegroups.com> >>>>>>>> . >>>>>>>> > > To unsubscribe from this group, send email to >>>>>>>> > > rbw-owners-bunch+unsubscribe@**g****ooglegroups.com<rbw-owners-bunch%2bunsubscr...@googlegroups.com> >>>>>>>> . >>>>>>>> > > For more options, visit this group at >>>>>>>> > >http://groups.google.com/**grou****p/rbw-owners-bunch?hl=en<http://groups.google.com/group/rbw-owners-bunch?hl=en> >>>>>>>> . >>>>>>>> > >>>>>>>> > -- >>>>>>>> > Cheers, >>>>>>>> > David >>>>>>>> > Redlands, CA >>>>>>>> > >>>>>>>> > ** >>>>>>>> > “I believe in an America where millions of Americans believe in >>>>>>>> an America >>>>>>>> > that’s the America millions of Americans believe in. That’s the >>>>>>>> America I >>>>>>>> > love.” >>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "RBW Owners Bunch" group. >>>>>>>> To post to this group, send email to rbw-owners-bunch@googlegroups. >>>>>>>> ******com <rbw-owners-bunch@googlegroups.com>. >>>>>>>> To unsubscribe from this group, send email to >>>>>>>> rbw-owners-bunch+unsubscribe@**g****ooglegroups.com<rbw-owners-bunch%2bunsubscr...@googlegroups.com> >>>>>>>> . >>>>>>>> For more options, visit this group at http://groups.google.com/** >>>>>>>> group****/rbw-owners-bunch?hl=en<http://groups.google.com/group/rbw-owners-bunch?hl=en> >>>>>>>> . >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Cheers, >>>>>>> David >>>>>>> Redlands, CA >>>>>>> >>>>>>> ** >>>>>>> “I believe in an America where millions of Americans believe in an >>>>>>> America that’s the America millions of Americans believe in. That’s the >>>>>>> America I love.” >>>>>>> >>>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "RBW Owners Bunch" group. >>>>>> To view this discussion on the web visit https://groups.google.com/d/ >>>>>> **ms**g/rbw-owners-bunch/-/**DukmhwU7f**6UJ<https://groups.google.com/d/msg/rbw-owners-bunch/-/DukmhwU7f6UJ> >>>>>> . >>>>>> >>>>>> To post to this group, send email to rbw-owners-bunch@googlegroups.** >>>>>> **com <rbw-owners-bunch@googlegroups.com>. >>>>>> To unsubscribe from this group, send email to >>>>>> rbw-owners-bunch+unsubscribe@**g**ooglegroups.com<rbw-owners-bunch%2bunsubscr...@googlegroups.com> >>>>>> . >>>>>> For more options, visit this group at http://groups.google.com/** >>>>>> group**/rbw-owners-bunch?hl=en<http://groups.google.com/group/rbw-owners-bunch?hl=en> >>>>>> . >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Cheers, >>>>> David >>>>> Redlands, CA >>>>> >>>>> ** >>>>> “I believe in an America where millions of Americans believe in an >>>>> America that’s the America millions of Americans believe in. That’s the >>>>> America I love.” >>>>> >>>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "RBW Owners Bunch" group. >>>> To view this discussion on the web visit https://groups.google.com/d/** >>>> msg/rbw-owners-bunch/-/**9sLmURl3xHUJ<https://groups.google.com/d/msg/rbw-owners-bunch/-/9sLmURl3xHUJ> >>>> . >>>> >>>> To post to this group, send email to rbw-owners-bunch@googlegroups.** >>>> com <rbw-owners-bunch@googlegroups.com>. >>>> To unsubscribe from this group, send email to >>>> rbw-owners-bunch+unsubscribe@**googlegroups.com<rbw-owners-bunch%2bunsubscr...@googlegroups.com> >>>> . >>>> For more options, visit this group at http://groups.google.com/** >>>> group/rbw-owners-bunch?hl=en<http://groups.google.com/group/rbw-owners-bunch?hl=en> >>>> . >>>> >>> >>> >>> >>> -- >>> Cheers, >>> David >>> Redlands, CA >>> >>> ** >>> “I believe in an America where millions of Americans believe in an >>> America that’s the America millions of Americans believe in. That’s the >>> America I love.” >>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To view this discussion on the web visit >> https://groups.google.com/d/msg/rbw-owners-bunch/-/TUFC6Qigh4EJ. >> >> To post to this group, send email to rbw-owners-bunch@googlegroups.com. >> To unsubscribe from this group, send email to >> rbw-owners-bunch+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/rbw-owners-bunch?hl=en. >> > > > > -- > Cheers, > David > Redlands, CA > > ** > “I believe in an America where millions of Americans believe in an America > that’s the America millions of Americans believe in. That’s the America I > love.” > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/zD_rLeGYYowJ. 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