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41mm and 28mm Carbon Wheels from Ibis

The New Normal and the New Wide

Words by Ibis Cycles.
April 7th, 2014

Welcome to the wide world of Ibis wheels and rims, what we refer to as The New Normal and The New Wide.

RimComparison

A wider rim delivers better sidewall support so you you can run lower pressures in your rubber. Lower pressures do several beneficial things, including increasing the contact patch, which results in better traction. Tires mounted on wider rims don’t burp as easily. Running lower pressures on varied terrain actually reduces rolling resistance. Wider rims are stronger and stiffer. With increased traction comes increased braking control.

If you look at nearly all other vehicles, the ratio of inner rim width to outer tire width is anywhere from 1.2:1 to 1.5:1.

Here are a few examples:

  • Road bike 1.2: 1
  • Motorcycle 1.3-1.5:1
  • Car 1.3:1
  • Mountain bike 3:1

So you can see that current mountain bike rims are the complete outlier, everyone else is going about this very differently.

Wide rims were present on the earliest mountain bikes. They rode well, really well in fact. Their downside was that they were heavy, and not strong enough. With recent advancements in carbon fiber and tubeless technologies, we’re now able to bring back the advantages of wide rims with none of the downsides.

IBIS_741_L3Qtr_Pair

The 41mm external width of the 741 and 941 puts Ibis ahead of the curve.

The  is a 29er rim with 28mm width that delivers enhanced tire stability and high strength at low weight.

The  and  are 27.5 and 29er rims with monster 41mm widths that deliver super tire stability even with large tires at low pressure.

The  and  are available as optional upgrades on the Mojo HDR 650b and Ripley 29 now, the  is scheduled as an option for the Ripley beginning next month.

We anticipate that these wheels will be available in the aftermarket in June.

14-0324-Ibis-928-COMPLETE

The 928 wheelset, weighing in at 1580 grams. We could get used to this as “the new normal”.

14-0324-Ibis-741-COMPLETE

All three Ibis wheelsets will be available on complete bikes as well as aftermarket.

SRP: $1299.00 (pair)
External Width: 41mm
Internal Width: 35mm
Rim Weight: 475g
Wheelset Weight: 1650g (pair)

SRP: $1299.00 (pair)
External Width: 28mm
Internal Width: 22mm
Rim Weight: 375g
Wheelset Weight: 1580g (pair)

SRP: $1299.00 (pair)
External Width: 41mm
Internal Width: 35mm
Rim Weight: 490g
Wheelset Weight: 1770g (pair)

20140404-Hyma-122

Gratuitous Moab product shots.

20140404-Hyma-047

What can wide do for you?

20140404-Hyma-220

Ibis’ new wheels in action. With a duct tape shoe

20140404-Hyma-195

Desert-approved.

Some cool visuals in this video:

“You can’t have too much traction.”
- Ancient mountain bike proverb.

Ibis has the story, history, technical data, and lots more on their site HERE.


The new normal looks pretty sweet!

  • Andy Eunson

    giddyup I’ll take a pair of those 928 wheels right now.

  • asin

    What about the hubs and spokes? Seems like a cool idea and reasonably priced too.

    • boomforeal

      this. hardware detail conspicuously absent from press release. sweet rims with cheapo hubs and spokes = no sale

      • Henry Chinaski

        Yep. Not confidence inspiring stuff:
        “We have a small, high end shop in Taiwan make the hubs for us to our specification. We have thoroughly tested and qualified these hubs, working closely with the factory to insure high performance and durability”

  • dorse

    Now we are talking. I have been running Stan’s flows for a while at 22.6mm in side dia. the new flows exe is 24mm in side dia. I’d really like to try these. When will they be coming out in a 26″ format.

    • http://nsmb.com Pete Roggeman

      Hate to break it to you, dorse, but I wouldn’t hold my breath for a 26″ version of these. We’ll get an official word from Ibis, though.

      • Vik Approved

        Ibis has said they won’t do 26er wheels because they are dead. They did say Derby would be making wide carbon 26er rims and anyone staying with 26ers should source them there.

      • Andy Eunson

        Syntace make wide rims too. Not carbon but I think they do 26 too.

  • Michael Douven

    Finally carbon wheels seem to be lowering in price.

  • http://nsmb.com Pete Roggeman

    There is a little bit more detail about the hubs on Ibis’ site, but not too much. However, we’ll be bringing you more info about the whole system very soon, not to mention getting some to test ASAP. Stay tuned.

  • Matt Searle

    All I can see is really smiley bearded folks up the top there…