Well, the measurements are in. The spindle is in fact 107mm and
appears to be symmetrical. So, I'm guessing the issue is with the
machining of my particular XD2.
This is okay as far as I'm concerned. I have no riding problems with
the Q-factor or chainline I have with the 113mm BB.
Yours,
Thomas
This thread is kinda funny in light of another recent discussion re:
external bearing triples, during which one commentator expressed
reluctance to "fight" with various standards and incompatibilities of
external BBs. Never used a VO BB, except the French ones, but I've
used XD cranks hundreds of t
I am putting my money on it being the crank not being machined
properly. On the drive side, at the square taper interface, the
cranks should be turned down a bit so that one can run a short BB
spindle. This will allow the cranks to snug into the driveside bb
cup without binding the crank to the
I have similar experience with Thomas. I recently put a XD500 crankset
on my wife's Trek 620. The crank was previously mounted on a Shimano
UN54 107mm bottom bracket and worked fine. I tried 2 bottom brackets I
had in my parts bin--a 107mm IRD XB-75 bottom bracket and a 113mm VO
bottom bracket, on
on 7/5/10 9:25 PM, Thomas Lynn Skean at thomaslynnsk...@comcast.net wrote:
> Don't know about symmetrical vs. asymmetrical. I can measure it when I
> get a chance. Wouldn't it be symmetrical unless otherwise indicated?
> Perhaps you're suggesting it's out of alignment somehow?
Some of the Shimano
I can see your point. Though the fact is that *mine* are incompatible,
so I think the word is correctly used. I acknowledge that someone
might interpret that as meaning they are known to be uniformly
incompatible. But that's a reach without reading the thread, where I
definitely speak only of mine.
Didn't measure it but will do so. Don't see how a spacer matters; a
spacer wouldn't change the position of the spindle relative to the
driveside face of the BB, would it? Don't know what the chainline is
on the Truvativ 113mm BB; that's too tricky to measure for me to get
it right.
I can certainly
Don't know about symmetrical vs. asymmetrical. I can measure it when I
get a chance. Wouldn't it be symmetrical unless otherwise indicated?
Perhaps you're suggesting it's out of alignment somehow?
As far as I know, the BB cartridge and the drive-side cup are one unit
on this BB; it was the drive-s
Hmmm well, the crankset was purchased new from RBW within the last
year or so. It had been mounted once. I used a torque wrench and did
not exceed the maximum torque on written on the crank arm bolts. If
the tapers are blown out, it's amazingly easy to do. I'll find out
over time I guess (when
Hm, i find that really odd as I run a VO *103mm* with an XD2 double to
get good chainlines with my dingle cog. The crank is *right* up
against the cup, but the machining around the taper hole on the crank
does its job and there's no interference. Is this one of the newer
XD2 with that machining?
JIS tapers can and do vary from brand to brand. Some of the tapers
fit in further than others. From my experience, they can vary as much
as 4mm total, or 2mm each side.
Couple of things.
1. Did you measure the actual length of the VO BB?
2. Did you try using a 2mm driveside spacer underneath th
Few questions on this one...
Does the VO BB have an asymmetrical spindle? Or are you sure that the
bb cartridge is correctly seated against the cup?
Are you talking about the "Grand Cru" or the "Threadless" version?
Have you measured the bb spindle to make sure it is as advertised?
- Jim
On J
That sounds kind of odd to me. I use a 107 BB with a Sugino and never
had crank arm interference. Actually I've used three different Sugino
triple cranks and one FSA square taper crank with the 107mm sized BB
and no problems at all. I'll bet that bottom bracket or the crank arm
is machined over siz
Did you check with VO and/or try other samples of either products? I
think it's premature to call them "incompatible" after only one test
case.
On Jul 4, 10:43 pm, Thomas Lynn Skean
wrote:
> Hi!
>
> I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom
> bracket and couldn't make it w
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