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Ibis
741 Carbon Fiber 27.5in Wheelset - DT Swiss 350 Rear Hub

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Don't worry though, we have a lot more 27.5" Mountain Bike Wheels - Tubeless in stock than that.

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The industry's widest carbon rims.

For their combination of performance-enhancing width at a very low weight, it would be easy to field an argument that the Ibis 741 carbon rims are the the best 27.5" all-mountain rims extant. Then we have DT Swiss, whose rear hubs have proven for decades that their combination of precision engineering, simplicity, and low weight can stand up to virtually any type of riding. Add to that its 54-tooth ratchet, with 6-degree engagement, and you get the Ibis 741 Wheelset with DT Swiss 350 Rear Hub.


So, aside from the Swiss internals, what sets these hoops apart? Width. Wheel manufacturers have slowly started to figure out that, on both dirt and pavement, going wider pays dividends. Wider internal rim widths (note: not simply a wider rim body) means the tire beads can sit farther apart, which means greater tire volume, which means that lower tire pressures can be run for greater traction and handling, because the tire is more free to deform and deflect around obstacles without drastically altering the path of the wheel's momentum. Ibis says you can run 4-6 less PSI of pressure, on average, with the 741s. Wider rims also translate into a wider tire footprint, again boosting traction, and increasing stability at the same time. A wider footprint also means that your tire fattens up relative to its labeled size; for example, a 2.2-inch tire can widen to the volume of a 2.3- or 2.4-inch tire, depending on the rims themselves, so you can run lighter tires without giving up capability or gnar-ability.


Now, take a look at the emerging world of 27.5-inch all-mountain-ready bicycle wheels, and you'll find internal rim widths from 21-26mm. Ibis takes that average and gives it an "F." Witness the 741: thirty five millimeters. That is gigantic. That is tremendous traction and capability. That is stability for days. But they must weigh a mega-ton, right? False. The 741 wheelset's carbon rims keep weight down to total of 1734g for these monsters, and coming from the company that raised legendary all-mountain machines like the Mojo and the Ripley, you know durability is a given.


Need numbers? Ibis tested the gravy out of the best competitors' rims for comparison and found its new 741s to be anywhere from 50% to 300% stronger in various tests. Part of what made this possible was the hookless bead construction of the rims, which optimizes tubeless tire compatibility while strengthening the bead by replacing traditional musical note-shaped beads with stout rectangles of carbon. Spoke holes are also reinforced by additional carbon to ensure strength, too. Ibis opted for traditional J-bend spokes (triple-butted: 2.2 - 1.5 - 2.0), and standard 7075 alloy spoke nipples, all available from your local bike shop in a very-worst-case scenario. Ibis' proprietary hubs are precision built and feature Enduro bearings for durability and longevity.


Details

  • Carbon fiber construction
  • Hookless rim
  • 35mm internal width
  • DT Swiss rear hub, Ibis front hub
  • J-bend spokes and alloy nipples
  • Item #IBS001C

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