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RX8 Wide Mountain Bike Shoe - Men's

4.5 out of 5 stars
2 Reviews

Out of Stock

Don't worry though, we have a lot more Men's Mountain Bike Shoes in stock than that.

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Why We Like The RX8 Wide Mountain Bike Shoe

Because gravel is still an emerging segment, some riders find themselves struggling with footwear choices—especially for racing. Mountain bike shoes offer great walkability, but are often too heavy and overbuilt. This leads many riders opting for lightweight road shoes with ultra-stiff soles that boost pedaling efficiency, but the lack of tread is not ideal for the inevitable hike-a-bike sections found in gravel race events and adventurous rides. Shimano addresses these problems by combining the best characteristics of their high-end road and mountain footwear into one shoe that's specifically designed for gravel racing. Lightweight and stiff, but with grippy outsoles and just enough toe flex to be comfortable to walk in, the RX8 might just be the best option out there for dedicated gravel enthusiasts. This wide version provides an alternate fit to best suit your feet.


  • Featherweight shoes designed for gravel bike racing
  • Carbon composite sole ensures maximum pedaling efficiency
  • Wide last provides an alternate fit
  • Lugged rubber outsole adds grip for hike-a-bike
  • Reinforced heel cup for stability under hard pedaling
  • Boa dial and toe strap make it easy to get the right fit
  • Perforations in the upper let your feet breathe
  • Wider cleat-to-pedal interface is optimized for XTR M9100 pedals
  • Item #SHI00OO
Upper Material
synthetic leather, mesh
Boa IP1
high-density insole with adaptable arch pads
[sole] carbon fiber composite, [outsole] abrasion-resistant TPU lugs
Cleat Compatibility
Claimed Weight
Manufacturer Warranty
1 year

Overall Rating

4.5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 1 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

February 22, 2021

Best gravel shoes!

I've put it through the wringer
Size Bought:
42 Wide

Light and stiff, feel very similar to my road RC9 shoes. I got the wide version and fits very similar to the RC9 wide. These are probably the best gravel shoes for the money!

Isamu M
4 out of 5 stars

December 3, 2020

Not as wide as the XC-9

I've put it through the wringer
Size Bought:
5' 8"

As a roadie who switches to SPDs in the winter, I was glad to have this shoe. It is excellent, but something of the magic of the XC-9 has been lost. Most critically, it feels narrower than the XC-9, I have both in the wide version. Perhaps it is just down to materials, the upper on this shoe feels stiffer, but the impression lingers after a full winter in them. So I'm back in my XC-9s again. I hope Shimano gives this shoe the full XC-9 treatment, I would pony up for that!