Open pro erd, 602 or 605?
krems81
about the open pro erd. Rinard and dt have it at 605, mavic at 602,
but I believe mavic states that it is not erd, but nipple seat
diameter, and their calculator gives results similar to rindards.
This made me inclined to go with 605, but yesterday I saw a wheel
built using 602 and it came out perfect. using longer spokes would
have been incorrect in this case. the spokes threaded right up to
flats in head of nipple and stopped. longer spokes would have entered
flats and possibly cleared head of nipple. I took hub measurements
myself to make sure there wasn't some other variable. Here's the
thread I've been following and posting on: http://www.bikeforums.net/showthread.php?t=500875.
Can anyone here contribute to this discussion?
Thanks
Qui si parla Campagnolo
I use 602 ERD(measured by me with Wheelsmith spoke rods) and have
built probably 600 or so OPros. I also calculate length using
Wheelsmith Spocalc.
A Muzi
I'm sorry but this discussion can only be resolved by Gene Daniels.
--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971
A Muzi
If you actually have this rim, any reason you cannot measure it?
Kinky Cowboy
I'm not completely convinced that Mavic have always used the current
extrusion for the rim labeled Open Pro, so the original one may have
been 605 and the current one 602. The ones I have (recent production)
measured 602 ERD as defined in Sheldon's glossary
http://www.sheldonbrown.com/gloss_e-f.html
A change in extrusion might also explain why they're heavier than they
used to be :-)
Kinky Cowboy*
*Batteries not included
May contain traces of nuts
Your milage may vary
jim beam
youda thunk this would be quickest...
Qui si parla Campagnolo
> On Sun, 11 Jan 2009 09:20:19 -0800 (PST), krems81
>
> >I've seen maybe 10 different bike forums posts expressing confusion
> >about the open pro erd. Rinard and dt have it at 605, mavic at 602,
> >but I believe mavic states that it is not erd, but nipple seat
> >diameter, and their calculator gives results similar to rindards.
>
> >This made me inclined to go with 605, but yesterday I saw a wheel
> >built using 602 and it came out perfect. using longer spokes would
> >have been incorrect in this case. the spokes threaded right up to
> >flats in head of nipple and stopped. longer spokes would have entered
> >flats and possibly cleared head of nipple. I took hub measurements
> >myself to make sure there wasn't some other variable. Here's the
> >thread I've been following and posting on:http://www.bikeforums.net/showthread.php?t=500875.
> >Can anyone here contribute to this discussion?
>
> I'm not completely convinced that Mavic have always used the current
> extrusion for the rim labeled Open Pro, so the original one may have
> been 605 and the current one 602. The ones I have (recent production)
>
> A change in extrusion might also explain why they're heavier than they
> used to be :-)
>
> Kinky Cowboy*
>
> *Batteries not included
> May contain traces of nuts
> Your milage may vary
4 iterations of similar Mavic clincher rims. Open 4, Reflex, Open SUP,
Open Pro. I believe they were all 602 but I'm at home, would have to
check my records.
A Muzi
>>> I've seen maybe 10 different bike forums posts expressing confusion
>>> about the open pro erd. Rinard and dt have it at 605, mavic at 602,
>>> but I believe mavic states that it is not erd, but nipple seat
>>> diameter, and their calculator gives results similar to rindards.
>>> This made me inclined to go with 605, but yesterday I saw a wheel
>>> built using 602 and it came out perfect. using longer spokes would
>>> have been incorrect in this case. the spokes threaded right up to
>>> flats in head of nipple and stopped. longer spokes would have entered
>>> flats and possibly cleared head of nipple. I took hub measurements
>>> myself to make sure there wasn't some other variable. Here's the
>>> thread I've been following and posting on:http://www.bikeforums.net/showthread.php?t=500875.
>>> Can anyone here contribute to this discussion?
> Kinky Cowboy <u...@domain.com> wrote:
>> I'm not completely convinced that Mavic have always used the current
>> extrusion for the rim labeled Open Pro, so the original one may have
>> been 605 and the current one 602. The ones I have (recent production)
>> measured 602 ERD as defined in Sheldon's glossaryhttp://www.sheldonbrown.com/gloss_e-f.html
>> A change in extrusion might also explain why they're heavier than they
>> used to be :-)
Qui si parla Campagnolo wrote:
> 4 iterations of similar Mavic clincher rims. Open 4, Reflex, Open SUP,
> Open Pro. I believe they were all 602 but I'm at home, would have to
> check my records.
But it is a semantic question. The actual rim dimension gets conflated
with the larger top-of-nipple dimension. All that gets tediously
difficult to explain sometimes. See r.b.t. extended discussion with Gene
Daniels for an example.
Qui si parla Campagnolo
wrote:
Open 4 was 605, Open SUP was 604(?), Reflex and Open Pro are 602.
higgs...@gmail.com
Why can't they use standard terminology!
datakoll
https://www.google.com/webhp?hl=en&tab=gw&q=Search%20for%20topics#hl=en&output=search&sclient=psy-ab&q=spoke+support+diameter&oq=SPOKE+SUPPORT+DIAMETER&gs_l=hp.1.0.0j0i22i30l2.2538.11765.0.17064.38.18.1.9.9.1.358.2655.0j7j2j3.12.0....0...1c.1.19.psy-ab.pq2Y2Ai0Fb0&pbx=1&bav=on.2,or.r_qf.&bvm=bv.48705608,d.dmQ&fp=88ac42508643d34c&biw=1152&bih=613
I was parked down at the end of the straight where the road to Petrolia cuts around an outcrop in a blind turn.
Began a turn around to get back up the bluff for hawk watching....n stopped...waited
the garbage truck cameah zooming around the blind turn in bith lanes.
E.R.D GARBAGE
said on the side.
AMuzi
datakoll
I see Mavic offers a new enduro NTB wheelset..
https://www.google.com/webhp?hl=en&tab=gw&q=Search%20for%20topics#hl=en&output=search&sclient=psy-ab&q=mavic+tour+de+france+2013&oq=mavic+tour+de+france+2013&gs_l=hp.12...1809.30599.0.33684.51.31.5.7.8.4.1230.7213.0j7j10j1j2j0j1j1.22.0....0...1c.1.19.psy-ab.3hjXXmSZv0A&pbx=1&bav=on.2,or.r_qf.&bvm=bv.48705608,d.dmg&fp=88ac42508643d34c&biw=960&bih=511