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Redefined efficiency.

The Shimano S-R320 shoes push the pedigree of top-tier shoes to another rung.

The already lauded Shimano SH-R315 shoe is the pinnacle of fit, comfort, and efficiency. So how did Shimano upstage itself with the SH-R320? Shimano looked at the shoe as being the link between power you generate and the drivetrain and gave it features that aid in more efficient power transfer.

Shimano infused the R320 with its Dynalast technology. This new sole design was constructed using unidirectional carbon fibers. If you know anything about carbon frame design, you'll know that uni-directional fibers create stiffer frames while still being compliant. The same principles are applied to sole design. While the Dynalast sole graces the R315, what is new to the R320 is a hollowed channeled carbon outsole. This feature increases the surface area of the sole which in turn increases rigidity. At the same time, Shimano has decreased the weight in the soles.

A stiff sole isn't effective if your shoes don't fit. To that end, Shimano created a carbon reinforced, nylon monocoque heel cup that holds your foot in place. Shimano claims that the combination of the outsole stiffness and new, more secure heel cup, result in an increase in pedaling efficiency by 5%.

The R320's are secured by a series of three straps. The first two, located at the forefoot are asymmetric hook and loop straps which adjust the volume of the shoe so that it fits like a kidskin glove. To keep your shoes on your feet, is a micro-adjust, ratcheting buckle. This system allows you to make incremental changes in the tightness of your shoes so that they are secure without being too tight. These three straps complement the Dynalast sole in such a manner that the shoes work with the motion of a foot throughout the entire range of pedal motion.

If all that isn't enough, Shimano used its stretch-resistant Rovenica synthetic leather in the construction of the uppers. It is more durable an lighter weight than other synthetic leathers and in comparison to the real stuff, it won't stretch or crack. Open mesh inserts have been placed in the uppers to keep your feet cool and these work in conjunction with the channel that was placed between the outsole and toebox. These features provide moisture management and temperature regulation. The uppers are fully heat moldable for a near-custom fit. In the same manner, the R320 also come with heat moldable insoles. As you dial in these shoes, you'll see why the Dynalast sole, uppers, and buckle system nearly eliminate hot spots and abrasions, no matter how long your ride.

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.

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Here's what others have to say...


Best shoes on the market

  • Familiarity:I've used it several times

I've been wearing the custom-fit Shimano's since the r300's came out. They keep getting better. Out of the box the fit is amazing. Supple upper, great support and nice adjustable arch. Great ventilation. Nice stiff sole. No hot spots on your feet during long rides. I highly recommend spending the extra $50 or so a shop will charge to have these heat molded to your foot. They are unbelievably comfortable after this process. In my opinion (and for my feet) better than anything else I've tried. I've tried Sidi 6.6's, high end Diadora's and a few other brands but Shimano's are consistently the best.

They also last a really long time.


Awesome !!

  • Familiarity:I've used it several times
  • Fit:True to size

Well worth the extra money to get a top level shoe, good ventilation and fit.



  • Familiarity:I've put it through the wringer
  • Fit:True to size

Love these. I was looking for a shoe with a tall toe box as my SIDI Genius shoes were creating sore spots on the top of my toes and it hurt... a lot. These have completely solved the problem. Love the fit, light, comfortable, no complaints.


These are really special

  • Familiarity:I've put it through the wringer

I had been riding in 315's for almost two years. The 315's were legendary (and a favorite in the pro peloton). I didn't think they could be improved. They have been! And not just by a little.

The new 320's are significantly lighter, feature a better heel cup gripping system, better walking pads (beefed up in the rear), the Dynalast system has been fine tuned, and the sublime hollow-channel, cross-weave carbon fiber sole is as light and effective as ever (now in matte carbon). In addition, and this was key... the structural support/design along the interior arch has been much improved -the only real weakness of the 315's.

It is two other features, however, that set these shoes apart from the rest and makes them really special.

(1) An unrivaled Ventilation system. The 320's feature a metal mesh "grill" in the front combined with breathable inserts throughout the upper (and one in the sole) to facilitate flow-through ventilation. This feature keeps your feet drier, cooler, and less clammy. It makes a very noticeable difference, especially during hard riding even in mildly warm weather.

(2) The 320's also feature a very roomy, wide toe box so that you can power "down" without constriction or pinching of your toes or forefoot. I can wiggle my toes fully; yet the heel and midfoot is totally locked in. Thus, I can power down flat for full power. And my foot is cooler and drier. Fantastic.

Let's face it, a top-of-the-line road shoe from any of the Big names is usually a really good shoe. But, the fact is there is -nothing- out there quite like these Shimano 320's. If Shimano 320's are in your cycling budget, buy them. You won't regret it.

FIT: Shimano 320's are certainly wider in the forefoot than regular SIDIs. The 320s will fit an average to slightly wide foot very well.


Comfortable so far and great under power

  • Familiarity:I've used it several times

I haven't had these long, but I've been pleased so far. I have a normal arch in my right foot and low arch in my left. The mid/small insert has worked well with both feet. These shoes are super stiff (similar to the Bont Vaypors I tried) and in my opinion stiffer than 2013: S-works, Giro Factor, and Bontrager RXL all of which I've tried recently. I don't know if it is the dynalast system or not, but these shoes felt seriously springy (not flexible, which would be bad) under hard standing efforts. They are definitely pro-quality. I don't know how they compare weight wise to the other shoes I've had because I am a heavy rider and don't pay attention to grams, but they definitely felt light on my feet. Some people have said these are not good winter shoes, but riding in typical March weather 40-60 in NC I have not noticed these as any warmer or colder than other shoes. The mesh doesn't add a noticeable amount of wind, but I suspect it'll help to dry the shoes faster overnight after a rainstorm or extra sweaty summer rides. I definitely recommend these shoes, but only if they feel comfortable out of the box. Heat molding the insoles didn't really do anything, and heat molding the uppers only makes them tighter (the only advantage being the heel cup tightening). This heat molding isn't like the change you get with the Bonts where you can see the heel and sides move around. On the other hand, the insoles are really high quality (much better than Bont and better than Giro's x-static kit). They are a little higher arch than Specialized BG which is also a very good insole. And they feel similar to Bontrager's inform insoles (though I didn't try molding those). Shimano doesn't have the metatarsal button. The huge downside is price (I picked them up from Compt Cyclist while they were on sale), but if you're looking for a comfortable race shoe and not just a slab of carbon to wear for 5-6 hours a weekend these are it. There's a reason these are so popular in the pro peleton.


It's Right for Me!

  • Gender:Male
  • Familiarity:I've put it through the wringer

This Shimano R320 shoe feels light and my foot is ninety percent more comfortable than my second choice, Tarmac, since I don't have to reach down about every hour and tighten a loosened boa knob. The R320 is a very well vented shoe so be sure to have a pair of windbreaker shoe covers in your bike wardrobe for those cold long rides. This is the first time a bike shoe fits my foot like a fine glove fits your hand, you just do not notice it's even on you. Great job Shimano! Lets just hope I'll always keep white shoe shiny new looking, oh no, where's my cleaning rag?


Light, stiff and comfortable

  • Familiarity:I've put it through the wringer
  • Fit:True to size

I am coming off of custom road shoes - they were going to be almost impossible to beat for fit and weight. These did the job. they are really well ventilated (not a winter shoe, for sure), very light, and the power transfer is excellent. They fit my foot very well, with no slipping in the heel.

I totally get what you mean b/c of the front ventilation system, BUT... you can totally wear 320's in the Winter if you use toe covers, aero covers, or booties -depending upon how cold the weather is.

Unanswered Question

Do you know where I can get replacement...

Do you know where I can get replacement insoles for these shoes?


Great Shoe

  • Gender:Male
  • Familiarity:I've put it through the wringer

Very light, fit like running shoes. Using speedplay pedals with these shoes. No hot spots. Super venting air just pours into these shoes for nice cool feel. I'm very happy with these shoes. Down side: Pricey!!

Great Shoe

They got it right!

  • Gender:Male
  • Familiarity:I've put it through the wringer

In recent years I tried the 310's and 315's, but they just never fit right. I've had serious foot issues the last few years, so bad I had to use custom orthotics that were too thick for most shoes, and, while much better, it still wasn't perfect (and only certain cycling shoes would work with them).

After reading a bit about these and hearing good things online, I decided to give them a shot. No more orthotics. I've been using them since early January exclusively. I don't use my other shoes anymore and I haven't used the orthotics with these shoes at all. They got it right- the arch support, the design of the shoe, even the sole and the adjustable fore/aft.

Wow, just WOW! I love them- I don't even think about my feet anymore when I ride. They're comfortable. I haven't even had them custom molded.

Hey, were your orthotics full length or 3/4 length? I myself am having trouble with my orthotics / shoe combination and the Shimano's were recommended to me. I was surprised to find that you were now able to go without your ortho's, hence my question. Thanks in advance for your response.