New Duro Crux Plus size tires!
jonesbikes.com/duro-crux-fold...
TLR / tubeless ready, Foldable bead, D-Tech
27.5 x 3.25”, foldable, TRL/tubeless ready, black, 60 TPI, D-Tech
29 x 3.25”, foldable, TRL/tubeless ready, black, 60 TPI, D-Tech
These tires are made with DURO’s exclusive D-Tech breaker technology which is an extra thin and light layer of high-strength material that wraps around the bias plies of the tire's casing, providing more strength, stability, and durability. The D-Tech breaker layer acts as a reinforcement, distributing stress and forces evenly across the casing for improved performance, and reduced risk of tread separation, punctures, and other tire damage. The Duro Crux has a thin and flexible tread section that can easily flex to absorb small bumps and ripples for a smoother, more efficient ride with more traction, on all terrain.
Duro Crux & Jones story:
In 2015 at Interbike, in the Duro tire booth, I was given a pair of prototype Duro Crux 29×3.25″ tires to try on my bike.
Here is a blog post about that trip including pictures of the tires: blog.jonesbikes.com/interbike...
Installing the tires: / 7skbq3qupz
On a bike: / 7x0aoywuqs
These were the first 29x3.25" tires I tried. The extra .25-inch width did make a difference. They had a cushier ride and excellent grip.
Riding on stairs: • Riding up and down sta...
Riding with Duro Crux in this vid: • Jeff Jones: A Man and ...
However, they were not tubeless-ready and so I could not recommend them for our bike builds. (Tubeless, prevents most flats. It also eliminates the need for an innertube. This saves weight and gives a smoother and more efficient ride since the tire is free to flex to absorb bumps without the tube there making the tire stiffer.)
Around two years ago we started working with Duro Tire to develop the spec for a custom production run of Crux tires for us.
We now have 27.5" x 3.25" and 29" x 3.25" Duro Crux foldable, Tubeless-ready tires in stock!
The Duro Crux and the Vee Bulldozer are the only two plus bike tires that are available with a 3.25"/83mm width. They are plus, plus tires! This tire has big knobs for great traction, a supple casing, and a huge volume, giving it an incredible ride!
Rim width recommendation:
I recommend using rims that have an outside width of 50mm to 56mm so you can run air at lower pressure for a better ride while still having a stable tire for safety and control. Having lower air pressure will make a tire more supple and will create a larger contact patch with the road. This increased contact patch allows the tire to conform to the road surface more closely, resulting in improved traction, better grip a smoother ride, and lower rolling resistance. It will also be able to absorb road imperfections and shocks more effectively, as the increased flexibility of the tire tread and sidewalls allows them to flex and deform to absorb impacts. This will result in a more comfortable ride, especially on rough or uneven road surfaces. This is very good for bike pacing, mountain biking, gravel grinding, and touring on unpaved roads. It is also very nice on paved roads.
Also, with lower air pressure, punctures are less likely to happen since the tire is spreading the weight of the bike and rider out over a larger area so the tire will not press down as hard on thorns or glass compared to a higher psi that will create a smaller contact patch on the ground with a firmer and less supple tire.
Using narrower rims will make the tires narrower and will require higher air pressure to make the tire stable enough to be safe to prevent it from folding over. Also, the tire will be firmer and less supple and will result in a rougher ride with less traction and increased drag from the increased vibration being transmitted to the bike and rider.
They are 29 Plus and 27.5 Plus tires!
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23 апр 2023
