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Welcome to the wide world of Ibis wheels and rims, what we refer to as The New Normal and The New Wide. The 928 is a 29er rim with 28mm width that delivers enhanced tire stability and high strength at low weight. The 741 and 941 are 27.5 and 29er rims with monster 41mm widths that deliver super tire stability even with large tires at low pressure. The 741 and 928 are available as optional upgrades on the Mojo HDR 650b and Ripley 29 now, the 941 is scheduled as an option for the Ripley beginning next month. We anticipate that these wheels will be availalble in the aftermarket in June.Wider rims are better than narrow rims. 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.
In 2013 the first wide carbon fiber rims came out, called Derby Rims. Derby is our good friend and in fact Ibis liked his idea so much we funded half the original tooling expense of these rims. Having access to the Derby Rims proved invaluable in testing for our own concepts and designs. Derby’s rims are made in a different factory than ours, as we will be needing a much larger quantity than his source can provide. For now, we will only be selling complete wheels, so if you’re looking for rims only, we heartily endorse the product that Derby is selling. If you can get them that is, Derby Rims have been regularly selling out each production run.
”You can’t have too much traction” – Ancient mountain bike proverb.
Read more here: http://www.pinkbike.com/news/ibiswide-c … -look.html
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