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SH-R320 Shoes

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The new age of efficiency.

It's a rarity that one shoe can combine comfort with rigidity. After all, by definition, the two are at odds with each other. However, not every shoemaker has the pedigree or the ambition to innovate that Shimano does. And for its latest top-tier offering, the SH-R320 Shoes, Shimano pushed past the limits of comprehension. The ideology was simple: redefine drivetrain efficiency at its initial source, the feet. And with heat-moldable insoles, customizable uppers, carbon fiber outsoles, and the new Dynalast technology, the SH-R320 achieved Shimano's goal with power, poise, and ease.

So, you probably asking yourself how the R320 has outpaced the already venerable SH-R315? Well, Shimano's newly developed Dynalast technology played an integral role in this achievement of placing 'power to the pedal.' With a unidirectional carbon fiber weave, this outsole increases efficiency while still allowing a calculated level of flex. This is possible due to the sole's variable stiffness and density that accommodates the movements of the arch. But, if you're an R315 owner, this is probably all sounding familiar. But, new to Dynalast is something that you don't have, a hollow channeled carbon outsole. This design is multifunctional -- increasing surface area, heightening rigidity, and concurrently, decreasing weight. Dynalast has also helped to redesign the heel cup of the R320. Now, it features a carbon reinforced, nylon monocoque cup that contributes to an increased level of stability, while also strengthening the shoe's hold on the foot. This is essential, as most pedal efficiency is lost from heel slippage. However, through the combination of the increased outsole stiffness and the newly secured heel cup, when compared to its nearest competitor, Shimano claims that the R320 experiences a 5% reduction in lost pedal efficiency. In more tangible terms, this equates to five seconds of gains over 25 kilometers. And in even simpler terms, this means free speed.

Furthering this power transfer are the R320's securing straps. The shoes feature two asymmetric, hook-and-loop straps that allow you to control the shoes' internal volume. Shimano has given these a broad, angular, and offset design that makes them simple to grab and adjust while in the saddle, should you need to make any on-the-fly adjustments. Controlling the overall tightness and security is a Shimano micro-adjust, ratcheting buckle. This system allows you make incremental adjustments with an elongated ratchet fixture. And when examining all three straps, it becomes obvious that they all work in unison with the R320's anatomic, Dynalast last design. This means that the entire shape and structure of the shoe has been mapped to conform to the male cyclist's foot throughout the motion of cycling. And if you require even more conformity, the uppers are even customizable through Shimano's heat-moldable Custom-fit technology.

And along the lines of the uppers, Shimano used its new stretch-resistant, Rovenica synthetic leather for the support structure. This material is similar to other high-end synthetics in that it's more durable, lighter weight, and better to look at than traditional leather. To keep your feet cool, Shimano placed ultralight open mesh at the points of ventilation. Additionally, the R320 features a large ventilation channel between the outsole and the toebox. And in all honesty, we can't think of a more effective ventilation design that's in use today. Even better, Rovenica and the mesh work in cooperation to keep the elasticity of the shoes extremely high, while providing the utmost in breathability and moisture management. Going even further into the realm of comfort, Shimano has designed the cleat mount to include 11mm of extra fore and aft cleat adjustability. So, you can now create the most comfortable and efficient power interface in Shimano history.

And of course, no top-tier Shimano shoe would be complete without Shimano's customizable, heat-moldable insoles. This system allows you to conform the insoles to a custom mold of your feet. This brings obvious advantages in both comfort and arch support. And over the long leg in the saddle, your custom shape will nearly eliminate the threat of abrasion.

The Shimano SH-R320 Shoes are available in whole and half sizes from 36.0 to 50.0 and in the color White. Please note that these shoes are only compatible with standard three-hole road cleats.

Upper Material
[uppers] Rovenica, [ventilation] open mesh
hook-and-loop straps, micro-adjust buckle
custom moldable
Shimano Dynalast
Claimed Weight
470 g
Recommended Use
road cycling
Manufacturer Warranty
1 year