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ShimanoRX8 Mountain Bike Shoe - Men's

$260.00

Item # SHI00ON

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Item # SHI00ON
Description

Why We Like The RX8 Mountain Bike Shoe

The RX8 combines the best features of Shimano's high-end road and mountain footwear into one pair of shoes that's specifically designed for gravel racing. A stiff carbon sole ensures all your pedaling power is transferred into forward motion, while the lightweight uppers wrap your feet in supportive comfort. Abrasion-resistant TPU lugs on the outsole provide traction for the tricky hike-a-bike sections commonly found in gravel events.

  • Featherweight shoes designed for gravel bike racing
  • Carbon composite sole ensures maximum pedaling efficiency
  • Surround Structure uppers provide a comfortable, glove-like 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

Tech Specs
Upper Materialsynthetic leather, mesh
ClosureBoa® IP1 dial, hook-and-loop strap
Footbedhigh-density cup insole with adaptable arch pads
Sole[sole] carbon fiber composite, [outsole] abrasion-resistant TPU lugs
Cleat Compatibility2-bolt
Recommended Usegravel
Manufacturer Warranty1 year
Size

Shimano

Cycling Footwear
EUUS MENUS WOMEN
35   4
36 4 5
37 4 5.5
37.5 4.5 6
38 5 6.5
38.5 5.5 7
39 5.5 7
39.5 6 7.5
40 6.5 7.5
40.5 7 8
41 7.5 8.5
41.5 8 9
42 8.5 9.5
42.5 8.5 10
43 9 10.5
43.5 9 11
44 9.5 11
44.5 10  
45 10.5  
45.5 11  
46 11  
46.5 11.5  
47 12  
48 12.5  
49 13  
50 14  

What do you think about this product?

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>Rating: 5

Best gravel shoes to date

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
46
Height
6` 3"
Weight
182 lbs

I was hesitant to purchase with the single boa strap but it doesn't feel loose at all. The top velcro strap really doesn't do much (set it and forget it). It's stiff but not too stiff when walking. Comfort is where it really shines - fits my foot like a glove and doesn't feel bulky nor too tight anywhere.

>Rating: 5

Best gravel shoes to date

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
46
Height
6` 3"
Weight
182 lbs

I was hesitant to purchase with the single boa strap but it doesn't feel loose at all. The top velcro strap really doesn't do much (set it and forget it). It's stiff but not too stiff when walking. Comfort is where it really shines - fits my foot like a glove and doesn't feel bulky nor too tight anywhere.

>Rating: 5

Excellent gravel/road shoe

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
44
Height
5` 9"
Weight
204 lbs

I really love the stiffness of the sole. The power transfer is excellent. I also like the fact the the toe box is adjustable separately from the upper portion of the shoe.

>Rating: 5

Great gravel shoe

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
47
Weight
185 lbs

Have about 3500 miles on these shoes. For gravel riding in New England, these are great. Stiff soles, easy to put on and take off, and very light. The velcro strap is pretty worthless, but otherwise the design is perfect for me. Others have noted that the exposed carbon on the soles gets dinged up when walking, but that has not been my experience. Maybe I'm doing more riding than walking? Haha. I've been on rooty and rocky singletrack with these on my gravel bike, and have had no problems with traction or damage to the shoes. I use these with Eggbeaters, and that combo works great--super stiff shoes and simple connections to the cranks. Have no experience with these as mountain biking shoes, but as gravel shoes these are pretty awesome.

>Rating: 5

YES YES YES - AMAZING

Familiarity:
I've put it through the wringer
Fit:
Runs large
Size Bought
43
Height
5` 7"
Weight
142 lbs

Use to wear S-Works Recon (which trashed my ankles)... Put 80 miles on these things first ride (XC/Trail) in NC. Killer shoes that feel amazing and don't rub. Stiff but also easy to walk in if the terrain becomes hike a bike. Some reviews say they pinch, but I found keeping them a little loose was key to comfort. I purchased one size smaller than the chart recommended. Hope they last a long time!

>Rating:

Are these wide? need a 43 wide

>Rating: 3

Nice light shoes

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
43 wide
Height
5` 10"
Weight
155 lbs

Bought a pair of light used RX-8s from a friend this year. Then took them on a bike tour that included some hike a bike. Was disappointed that the tread peeled off on one of the shoes. Out of warranty so I tried glueing it back myself. Hopefully, it will hold. As stated below, super comfortable and light. These will be saved for paved road touring and 1 day gravel events in the future.

>Rating: 5

Shimano RX8 shoes👍👍👍

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
47
Height
5` 11"
Weight
211 lbs

This is my 2nd pair of RX 8 shoes. The first pair was adapted to 3 hole for road cleat use…yes I cut off some traction knobs to accommodate and used Epoxy as a filler but they came out great! They are very stiff and comfortable…and the Boa works easily. I ordered a 2nd pair for gravel and spinning use…these shoes are so comfortable and functional…my favorite shoes and well worth the $

Do the spd cleats scrape on concrete or asphalt or the ground when walking ?

>Rating: 5

100% satisfied.

Familiarity:
I've put it through the wringer
Size Bought
45
Height
6` 0"
Weight
181 lbs

I needed a comfortable shoe sized up for Unbound. My Sidis I’ve always worn super snug but couldn’t risk that for this ride. Went with the RX8 in size 45. Sidis are size 44 and tight. The RX8s are comfortable, lightly padded, and light’ish. On and off is ok. Single boa with four connections works fine. The shoe is stiff and racy considering it’s a off road shoe. Walking is ok in this shoe, but not a shoe I’d go walking around town in. The outsole for walking is fairly hard and narrow. The carbon makes it rather stiff for a stroll. So, found the shoe super comfortable to wear, racy when racing and serviceable for a walk when required. Didn’t think about them at all in 206 miles.

Thanks for sharing. How'd they do on that hot day? I want them as a second pair for the SoCal summer heat (Giro Sectors are sold out everywhere). Also, hope the race went well for you. Cheers to you for being a badass and making it out regardless.

Do these scrape the spd cleat on the concrete or tile when you walk ?

>Rating: 5

Perfect Gravel shoe

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

Fits great, comfortable and light weight.

>Rating: 4

Great Shoe!!!

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
12
Weight
195 lbs

You really cannot go wrong with this shoe.. I have used shoes from just about everyone and this one is probably one of the best I every worn. I also like Lake and some of the Sidi shoes, but the moment I slipped this shoe on I knew it was going to be great. Highly recommended for gravel duties as well as Cross.

>Rating: 3

Cuts my ankle

They look great and have good walkability. Unfortunately, I had to return them because it felt like the strap by the ankle was digging into my foot each time I took a step.

>Rating: 5

Light and comfortable

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
44
Height
5` 10"
Weight
140 lbs

The fit is slightly smaller than my Fizik shoes (rx8 in 44 is similar to fizik 43.5). The toe box also feels a bit narrower. Great shoes at a great price.

>Rating: 5

Work well, fit well, priced reasonably

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
46.5

Coming from years as a roadie, I bought the RX8 for use with my gravel bike last year. The RX8 are lightweight, comfortable, and well-fitting. The rubber lugs on the sole surround the SPD cleat so you can walk normally. I don't think about the shoes at all while riding, which tells me they are doing their job without causing problems. I have walked a mile on gravel once when I irreparably flatted, and the carbon soles are completely unharmed (it's OK if the carbon finish gets scratched, the undersides of your shoe soles are for function not esthetics). The price is very reasonable compared to what I am accustomed to paying for road shoes.

>Rating: 3

I'll Give 'Em a "B"

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

Have owned the shoes for 4 months now. Have taken many regular mountain bike rides. Good: The shoe is light and has a good, stiff sole. The design, as others have stated, is more like a road shoe glued to a mountain tread. Minimal and great for the cross-country style riding I do. Feels good when first slipping on the foot (natural shape/fit). I bought the silver version, which I think looks pretty good. For me the size was accurate. I wear an 11 shoe (left is 10..5, right is 11). I bought the 45's (says 10.5 US). Ventilation is very good. The minimal tread looks like it will shed mud well when it starts to get wet again. Not-so-good: Inserts weren't very comfortable for my feet. I replaced with a pair of Specialized inserts, which improved. But my feet still get a little numb if I don't constantly play with the adjustments. The over-the-instep strap can make it difficult to get your foot in. Not especially easy to slide on. Also, when cinching the BOA IP1 dials down, the shoe tends to exert pressure on specific spots of my foot rather than evenly around the whole foot. And these BOA dials are a pain in the _ _ _. All IP1's are apparently not created equal. They failed after a month. And a major effort to replace, partly because BOA has fallen back on its 1st-generation design for these, and you have to cut, measure, re-lace, tie knots, and work with little parts to replace them. As for the shoes, that nylon webbing "eyelet" does not make it easy to re-lace. I ran a jeweler's screwdriver through it, stretched it all sorts of ways, and eventually coaxed the new lace back through. But it was not easy. With many pairs of cycling shoes I've owned with BOA, I've found a 1-to-1 dial to eyelet ratio is best. Having one dial serve multiple loops for wrapping the foot doesn't work very well.

Have

Hi Bicyclo-phile - my biggest concern about new shoes (particularly at this price point) is that i'll continue to get some foot numbing that i experience with my tri shoes but not with my old mountain bike shoes. Do you believe your experience is due to the soles of the actual shoe and not pedals or anything else? many thanks for your thoughts!

>Rating: 5

Fit great

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

I used the size chart to select size. Size was perfect. Not too wide, fit great. I have done some walking in them with very little difficulty. Overall very satisfied with the product

>Rating: 4

A great shoe, not for serious gravel

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

I bought these shoes for gravel riding as a roadie crossing over to the dirt side. I gave these shoes a shot because of their lightweight design and stiff sole, reminiscent of a road shoe. The shoe has some great design features - it is stiff, lightweight, well vented, and looks good. The burrito style tongue offers a secure fit with the single boa. The price point is fair for this quality of a shoe. My problem with these shoes is that the stripped down design of the sole doesn't make it suitable for adventurous off road trips. On the bottom of the shoe, a lot of the carbon sole is exposed, leaving it vulnerable to scratching and chipping when walking on gravel. Even with just a little walking there was a lot of visible damage to the underside of the sole - my concern is that these won't last long with even a little regular walking. Additionally, the tread around the cleat and heel is a hard rubber that doesn't offer a ton of traction. Suitable for cafes and such, but great if you're interested in some CX races. Additionally, despite the comfortable burrito style tongue, in my opinion a shoe of this price point should include 2 boas for better fit adjustment. I ended up with the XC7 shoe instead. The weight penalty was worth the extra sole rubber and 2 boas. The shoes are much more secure for walking on course gravel and hike-a-bike sections. So who is the RX8 for? I think this is an amazing shoe for roadies who want to ride with a 2 bolt cleat system, gravelers who ride flat and smooth terrain without much walking or course gravel, and perhaps tourers looking for an efficient and walkable shoe system. But if your gravel trips err on the more adventurous side, a mtb shoe like the XC7 might be better. Shoe size is true to size - I ended up in a 46 for my size 11.5 feet.

>Rating:

How do these Shimano's compare in sizing to SIDI (road) shoes? I wear a 43 in the SIDI's. Based on the reviews here, seems like sizing is a bit erratic?

>Rating: 5

Stiff, lightweight gravel shoe

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
45
Height
6` 1"
Weight
175 lbs

Typically wear a size 10.5 sneaker. Came from a much heavier and softer-soled pair of Bontrager mountain bike shoes in size 45. Ordered 45 here and fits like a charm. The tongue-less "burrito" design of the RX8 gives a more snug, road-shoe-like fit, and the boa dial has been great for making small adjustments. Carbon soles are nice and firm and I've been very happy with them so far. Would buy again!

Typically
>Rating: 5

Yep, seems like a winner.

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
44

Bought these as an all-road shoe, definitely feel a lot more ‘roadie’ than my XC pair, but in a good way. Only a few miles on them, but I am very pleased so far. Great price to value ratio compared to similar shoes with the stiff carbon sole, boa closures, adjustable arch insole, light weight, etc. True to size relative to my previous Shimano SPD shoes. I have slightly wider feet, the fit is snug but not too tight. Feels like a similar fit as my Giro’s in size 45, which tend to run small. I needed to put a set of the little oval Shimano shims under the cleats to alleviate some of the rubber outsole/pedal interface for easier entry and exit, but that’s more of a personal preference. Looking forward to putting some real miles on them this season.