With a brand new 320tpi cotton casing, up to date tread sample with aero dimples, and a race twin compound rubber, the brand new Bontrager Aeolus RSL takes the mantle as their high (and quickest) highway bike tire.
The brand new tire replaces their R3 TLR and takes a multi-pronged strategy to creating you quicker. The cotton casing is far softer, which helps it deform to the bottom extra simply for a smoother trip with much less rolling resistance.
Beneath the tread cap is a puncture safety belt that, mixed with a tubeless setup, helps hold you rolling. A protecting layer across the bead retains the rim from carrying down the cotton and likewise provides a little bit of pinch flat safety.
It additionally will get a brand new twin compound rubber, placing a more durable rubber within the middle so it rolls quicker and softer, grippier rubber on the perimeters for cornering. They are saying this protects 3.7watts in rolling resistance. However that’s not all…
Whereas Bontrager didn’t dive very deep on explaining the aerodynamic advantages, my guess is it’s the strips and dimples that assist journey the air and hold it hooked up for decreased turbulence. It’s a really totally different design than the brand new Continental Aero 111, however they’ve some numbers to again it up.
What’s noteworthy about this graph is that there are some financial savings even on the decrease finish of the pace spectrum (albiet nonetheless at a tempo most of us aren’t holding solo), and likewise that the enhancements are on a wider 28mm Aeolus tire versus a narrower 25mm R3.
It’s suitable with hooked and hookless rims, however notice that the utmost tire stress varies based mostly on each tire width and rim kind.
It is available in 26mm (265g), 28mm (285g), 30mm and 32mm widths. (NOTE: Weights weren’t offered for all sizes but and based mostly on pre-production fashions. I’ve a set in for testing and can present precise weights in a future overview.)
Bontrager.com
