[ad3] The Ibis wheel family has now grown to 9 different models, including two aluminum low budget options. The new carbon models are the 742 , 942 , 735 , 935. The aluminum ones are the 738 and the 938 .
The first digits indicates wheel size and the next two indicate width…For example, the 738’s above are for 27.5 and feature a 38mm rim.
Our new carbon rim design features a lower cross section height for increased impact performance. The lower 19.5mm section height makes the wheel better able to distribute the loads of localized impacts from rock strikes or hard landings.
Also, we are introducing a new hybrid carbon fiber layup, strategically combining layers of a new, high-toughness carbon/epoxy prepreg with our original carbon composite, increasing both ultimate strength and impact durability. This, combined with the asymmetric rim design that features 5mm of offset (2.5mm on 735/935) allows for higher spoke tensions that are nearly equal from one side of the wheel to the other. As a result of all this, the 742/942 nets a 30% increase in impact strength yet a 7.5% decrease in weight, compared to our previous rims.
The Aluminum wheels feature 36T, 4 Pawl engagements on either Standard Shimano HG driver or SRAM XD drivers.