36-Hole Rim Recommendation For 55/55's?
(PeteCresswell)
--------------------------------------------------------
I'm looking at the bottom part of Schwalbe's tire size page:
http://www.schwalbetires.com/tech_info/tire_dimensions
Looks to me like they want a minimum of 21mm *inside* rim width.
All the rims I have are less than that and most of the rims I've
Googled so far are either less or the specs are not clear whether
the size is inside or outside diameter.
I've never, ever had even a hint of that problem with the Mavic
517 and 417 rims that I've been using, but for this application I
want to play it by the book: 21mm inside diameter.
Anybody got a suggestion?
The genesis of this is having a Mutano Raptor 55/55 peel off the
el-cheapo Brand-X rim that came on a pre-built eBike wheel.
--
PeteCresswell
landotter
> Tried this on alt.mountain-bike, but no nibbles:
> --------------------------------------------------------
>
> I'm looking at the bottom part of Schwalbe's tire size page: http://www.schwalbetires.com/tech_info/tire_dimensions
>
> Looks to me like they want a minimum of 21mm *inside* rim width.
>
> All the rims I have are less than that and most of the rims I've
> Googled so far are either less or the specs are not clear whether
> the size is inside or outside diameter.
>
Chalo
Seconded. That would be my first choice for 26" fat tire, independent
of cost. The fact that it's one of the least expensive 26" rims of
any kind is just a bonus.
http://www.ebikestop.com/alex_dm24_24quot_36h_silver-RM7505.php
Chalo
Peter Howard
"landotter" <land...@gmail.com> wrote in message
news:acb00d12-36a8-43eb...@m25g2000yqc.googlegroups.com...
Alex rims are indeed good rims for a reasonable price, the only hassle being
that the price skyrockets as soon as you want any rim shipped outside the USA. I
swear that one day I'll take a holiday in the USA and bring home a suitcase
filled with a lifetime supply of rims.
Anyhow Pete, if you can't get hold of Alex rims in the UK, I could suggest the
Halo Combat 36mm wide with eyelets from Wiggle in the UK at around 28 quid with
free shipping. Just be sure to order multi (meaning for disc and rim brakes)
rather than disc only. Used those rims recently in a pair of wheels for kid who
likes to ride up and down stairs without either watching tyre pressures or
checking spoke tension occasionally. Don't know if they'll survive any better
than their predecessors but they were nice to lace, *felt* strong and 2.4 inch
section tyres fitted on very nicely.
I'd recommend Velocity Psycho at 31.5 wide or Velocity Cliffhanger at 28mm wide
except that supply of Velocity in the UK seems to be spotty.
PH
Qui si parla Campagnolo
AMuzi
Redline ships with a "WTB Laser Disc" rim, 27.5 wide on the
outside. Don't know who makes it.
--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971
Chalo
>
> PeteCresswell wrote:
> >
> > I'm looking at the bottom part of Schwalbe's tire size page:
> >http://www.schwalbetires.com/tech_info/tire_dimensions
> >
> > Looks to me like they want a minimum of 21mm *inside* rim width.
>
> outside. Don't know who makes it.
The easiest aftermarket rim to find in 27.5mm outside width is the Sun
Rhyno Lite. But the similar, stronger, cheaper Alex DM24 is 32mm
wide.
Chalo
AMuzi
>>> I'm looking at the bottom part of Schwalbe's tire size page:
>>> http://www.schwalbetires.com/tech_info/tire_dimensions
>>> Looks to me like they want a minimum of 21mm *inside* rim width.
> AMuzi wrote:
>> Redline ships with a "WTB Laser Disc" rim, 27.5 wide on the
>> outside. Don't know who makes it.
Chalo wrote:
> The easiest aftermarket rim to find in 27.5mm outside width is the Sun
> Rhyno Lite. But the similar, stronger, cheaper Alex DM24 is 32mm
> wide.
I guess I'm unclear about -559 rims or -622 for this
application. Pete, which is it?
(PeteCresswell)
>Seconded. That would be my first choice for 26" fat tire, independent
>of cost. The fact that it's one of the least expensive 26" rims of
>any kind is just a bonus.
My reading of the specs is that it's 32mm wide - wider than even
the widest (29) on Schwalbe's chart.
Is there such a thing as too wide? Looking at abovementioned
chart, it seems like a 29, for instance, isn't recommended for
tires narrower than 54mm.
Or am I reading something incorrectly?
--
PeteCresswell
landotter
You should read it as *inside* diameter. Otherwise it's goofy. 28mm
tires are indeed the narrowest extreme for a 19mm rim measured this
way. The 24mm Alex hoops would be good with 40 to 60mm+ tires no
problem.
(PeteCresswell)
>I guess I'm unclear about -559 rims or -622 for this
ISO 559 - which, IIRC, is the same as 26".
--
PeteCresswell
Chalo
the "24" in DM24 is its inside width in mm. The DM18 and DX32 are the
same in that aspect of their nomenclature.
Even the DX32, which is over 38mm wide on the outside, would be a good
choice for a tire between 45mm and 75 mm true outside width.
Chalo
thirty-six
Rather extreme in weight.
Chalo
>
> Chalo wrote:
> >
> > Even the DX32, which is over 38mm wide on the outside, would be a good
> > choice for a tire between 45mm and 75 mm true outside width.
>
The Alex DX32 weighs 730g. How many 38mm wide rims weigh
significantly less than that?
In my observation, a bike's rims are about the worst possible place to
try to shave weight.
Chalo
landotter
The difference in weight between a sketchy rim and a strong one is
about 1/3 of the weight between a light 32mm tire and a flabby OEM
thing. The rim is a lot harder to replace.
thirty-six
I'm not saying a rim that wide should weigh less. What I believe is
that the extra weight of the tyre and rim will make a noticable
difference in the speed of response, which may be particularly
important if the rider wishes to avoid obstacles. Or should I say,
negotiate appropriately. Of particular note, i recall a river
crossing possible over stepping stones which could prove more than
difficult with heavier wheels. (Well, it did, once.)
thirty-six
The spokes stabilize the rim when installed correctly. I dont see any
need to go above 550g rim in normal diameters. Motorcyclists and
freaks excepted.
AMuzi
>> I guess I'm unclear about -559 rims or -622 for this
>> application. Pete, which is it.
(PeteCresswell) wrote:
> ISO 559 - which, IIRC, is the same as 26".
In that case Velocity Psycho
http://www.yellowjersey.org/velrmmtn.html
Michael Press
Phil W Lee <phil(at)lee-family(dot)me(dot)uk> wrote:
> "(PeteCresswell)" <x...@y.Invalid> considered Sat, 02 Jan 2010 19:58:09
> -0500 the perfect time to write:
>
> >Per AMuzi:
> >>I guess I'm unclear about -559 rims or -622 for this
> >>application. Pete, which is it.
> >
> >ISO 559 - which, IIRC, is the same as 26".
>
> More correct to say it is one of the many 26" sizes, which can be
> anything from 559mm to 599mm apart from 587mm, which is 700c.
Incorrect.
700 C is ISO 622.
ISO 587 is 700 D, an orphaned and useless even when new size.
Things are confusing enough without false messages.
--
Michael Press
(PeteCresswell)
>
>The easiest aftermarket rim to find in 27.5mm outside width is the Sun
>Rhyno Lite. But the similar, stronger, cheaper Alex DM24 is 32mm
>wide.
I'm shopping the Suns bc if I get the Alex, I'm sure to do
something boneheaded two years from now like mounting a 1.5"
tire. on it.
The Rhynos, being a little narrower yet wide enough, look like
I've got more leeway.
But one thing's wondering me: "ABT". It appears frequently as a
qualifier for various RhynoLite rims.
I'm pretty sure that in that context it doesn't stand for
"Autologous Blood Transfusion".
Any idea what it really does stand for?
--
PeteCresswell
AMuzi
"cut sides"
Other brands say "MSW" or "SUP" or whatnot.
(PeteCresswell)
>
>"cut sides"
>Other brands say "MSW" or "SUP" or whatnot.
As in siped?
--
PeteCresswell
Jay Beattie
> Per AMuzi:
>
>
>
> >"cut sides"
> >Other brands say "MSW" or "SUP" or whatnot.
>
> As in siped?
As in machined. "SUP" is the Mavic designation. "MSW" means "man
seeking woman" or "machined side-wall" depending on what shop you are
in. -- Jay Beattie.
AMuzi
>> "cut sides"
>> Other brands say "MSW" or "SUP" or whatnot.
(PeteCresswell) wrote:
> As in siped?
Modern rims are commonly lathe-cut so the sides are smooth.
New bike makers like that, as the brakes don't require
break-in abrasion of the rim to feel right. Some note that
ABT/MEW/SUP leaves a thinner rim side than if left uncut.