Rim Width Question

[Ray]

What is the minimum rim width that will bear a 32 - 35 mm tire safely?

[PATRICK MOORE]

I run 32s on 19 mm (outside) rims; heck, I used those rims for 1.95s
too, back in the day. But a 23 or so rim is probably a bit better --
at least, more forgiving of lower pressures (tho' I run the 31 mm
Kojacks on those narrow Suns at about 55/50).

On Mon, Sep 5, 2011 at 7:45 PM, Ray <r.s...@sbcglobal.net> wrote:
> What is the minimum rim width that will bear a 32 - 35 mm tire safely?
>

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--
Patrick Moore
Albuquerque, NM
For professional resumes, contact
Patrick Moore, ACRW
http://resumespecialties.com/index.html

[Jeremy Till]

Like Patrick, I run tires that measure out at ~35mm (WTB Slickasaurus) on 19.5mm Open Pros with nary a problem in terms of fitting and safety.  Only issue for me is getting caliper brakes to open wide enough for the tire to pass through.

[Ray Shine]

Thank you, patrick. I just measured and have 19mm. I want to mount 32 Paselas.

---

From: PATRICK MOORE <bert...@gmail.com>
To: rbw-owne...@googlegroups.com
Sent: Mon, September 5, 2011 7:10:29 PM
Subject: Re: [RBW] Rim Width Question

I run 32s on 19 mm (outside) rims; heck, I used those rims for 1.95s
too, back in the day. But a 23 or so rim is probably a bit better --
at least, more forgiving of lower pressures (tho' I run the 31 mm
Kojacks on those narrow Suns at about 55/50).

On Mon, Sep 5, 2011 at 7:45 PM, Ray <r.s...@sbcglobal.net> wrote:
> What is the minimum rim width that will bear a 32 - 35 mm tire safely?
>
> --
> 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-owne...@googlegroups.com.

> To unsubscribe from this group, send email to rbw-owners-bunch+unsub...@googlegroups.com.

> For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
>
>



--
Patrick Moore
Albuquerque, NM
For professional resumes, contact
Patrick Moore, ACRW
http://resumespecialties.com/index.html

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[Ray Shine]

Thanks, Jeremy.  Good to know.

---

From: Jeremy Till <jerem...@gmail.com>
To: rbw-owne...@googlegroups.com
Sent: Mon, September 5, 2011 7:35:02 PM
Subject: [RBW] Re: Rim Width Question

Like Patrick, I run tires that measure out at ~35mm (WTB Slickasaurus) on 19.5mm Open Pros with nary a problem in terms of fitting and safety.  Only issue for me is getting caliper brakes to open wide enough for the tire to pass through.

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[René Sterental]

I also run 35 Marathon Supremes on Open Pros. Never had a problem. I just mounted the 40 Marathon Duremes on the Dyads that are a bit wider. Will be testing those in the next few days.

 

You should be fine.

 

René

[Ray Shine]

Gracias!

---

From: René Sterental <orth...@gmail.com>
To: rbw-owne...@googlegroups.com
Sent: Mon, September 5, 2011 9:04:41 PM
Subject: Re: [RBW] Re: Rim Width Question

[Jim Cloud]

I have Riv's "Jack Brown" Blue Label 33.333mm width tires mounted on
Mavic MA-2 rims (Inner Bead Width: 13.8mm, Outside Rim Width:
20.3mm). The Mavic MA-2 700c/622mm 36 hole rims were re-sized to a
26" 32 hole mountain bike rim by Keith Bontrager in the day, so I
assume it should handle a 700c tire up to 35mm (properly inflated -
NOT under-inflated!). Jan Heine also used the Mavic MA-2 rim for his
tests of the Grand Bois 32mm Cerf tires.

Jim Cloud
Tucson, AZ

Jim Cloud
Tucson, AZ

[charlie]

I wondered about this also when I received my Open Pro rimmed wheels
for my SimpleOne. I mounted what I had laying around, Panaracer
Paselas (700x35) and pumped them up to 80 psi. I'm thinking of making
a switch to a more flat proof (but not heavy) tire for commuting on
glass strewn streets. 700x35's are the lower limit for me at 258
pounds IMHO. I love the Marathon Supremes in the 700x40 size on my
geared bicycle but they are too wide for the Open Pro rims I think.

On Sep 5, 6:45 pm, Ray <r.sh...@sbcglobal.net> wrote:

[Philip Williamson]

I'd put 40mm tires on just about any rim. My mtb tires are 50mm, on
rims that are 19mm inside-to-inside. 40mm tires would let you run
pressures like 45/70 (front/rear), rather than the 60/90 you get from
35s.

Freshly repaired Tire Pressure Calculator:
https://docs.google.com/spreadsheet/ccc?key=0AiAk2_n1YDEidFp6OWpxRHpGdGVXbHQzYy1pX3BMVGc&hl=en_US#gid=0

Philip

Philip Williamson
www.biketinker.com

[Ray Shine]

Interesting. Thanks, Philip.

---

From: Philip Williamson <philip.w...@gmail.com>
To: RBW Owners Bunch <rbw-owne...@googlegroups.com>
Sent: Wed, September 7, 2011 12:43:36 AM

Subject: [RBW] Re: Rim Width Question

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[Travis]

Philip, that calculator is great! I'm going to use it all the time.
Thank you, that hard work is appreciated!

[Ray Shine]

Yes, indeed it is!

---

From: Travis <travisbr...@gmail.com>

To: RBW Owners Bunch <rbw-owne...@googlegroups.com>

Sent: Thu, September 8, 2011 11:05:09 AM

Subject: [RBW] Re: Rim Width Question

Philip, that calculator is great! I'm going to use it all the time.
Thank you, that hard work is appreciated!

[Philip Williamson]

I didn't do much. Dave Adams allowed me to publish his spreadsheet
because I'd extended (with permission) the Berto graph from Bicycle
Quarterly and put it on a blog.
http://www.biketinker.com/2007/bike-resources/optimum-tire-pressure-35mm-tires/

In any case, use it in good health!
Philip