Shimano SH-RX800 Shoes - Black 45
Gravel Riding. With Extra Velocity. While some may like to take it easy and others love a gravel race, the RX8 SPD cycling shoes are definitely focused on that speedier end of the gravel riding spectrum. This race-inspired focus is ably demonstrated by the use of a super-stiff carbon composite sole, ensuring all your watts are efficiently transferred to the pedals with little waste, letting you crush gravel roads at speed. The sole unit also features stripped back TPU lugs, reducing overall shoe weight while still maintaining sure-footed performance when you're off the bike. With their two-bolt MTB pedal compatibility, you're also assured of the best pedalling efficiency and stability as you zip from gravel to road and back to gravel again. Dynalast Design x BOA IP1 Precision Adjustment The upper of the RX8s is a one-piece synthetic leather construction, wrapping the foot snugly and holding the foot stable as you pedal - it delivers all-day comfort and performance in equal measure. Shimano's DYNALAST design conforms to your foot shape to eliminate hotspots and it ensures you have natural and smooth pedalling motion, even across rough terrain. Next comes the BOA IP1 dial technology - this allows you to customise the fit precisely to your foot and to spread pressure evenly and comfortably, even on the fly. With 1mm of micro-adjustment, you'll always be able to get the fit just how you like it. Lastly, with Silvadur antimicrobial inner soles you'll also finish the day with fresh feet, no matter how intensely you've been riding. If your cycling thrills come from speeding along gravel roads, maybe even looking to race, then the RX8 SPD Shoes are the shoes to turn too. Remarkably light and super-stiff, these shoes will soon leave competitors eating your dust.
Gravel Riding. With Extra Velocity. While some may like to take it easy and others love a gravel race, the RX8 SPD cycling shoes are definitely focused on that speedier end of the gravel riding spectrum. This race-inspired focus is ably demonstrated by the use of a super-stiff carbon composite sole, ensuring all your watts are efficiently transferred to the pedals with little waste, letting you crush gravel roads at speed. The sole unit also features stripped back TPU lugs, reducing overall shoe weight while still maintaining sure-footed performance when you're off the bike. With their two-bolt MTB pedal compatibility, you're also assured of the best pedalling efficiency and stability as you zip from gravel to road and back to gravel again. Dynalast Design x BOA IP1 Precision Adjustment The upper of the RX8s is a one-piece synthetic leather construction, wrapping the foot snugly and holding the foot stable as you pedal - it delivers all-day comfort and performance in equal measure. Shimano's DYNALAST design conforms to your foot shape to eliminate hotspots and it ensures you have natural and smooth pedalling motion, even across rough terrain. Next comes the BOA IP1 dial technology - this allows you to customise the fit precisely to your foot and to spread pressure evenly and comfortably, even on the fly. With 1mm of micro-adjustment, you'll always be able to get the fit just how you like it. Lastly, with Silvadur antimicrobial inner soles you'll also finish the day with fresh feet, no matter how intensely you've been riding. If your cycling thrills come from speeding along gravel roads, maybe even looking to race, then the RX8 SPD Shoes are the shoes to turn too. Remarkably light and super-stiff, these shoes will soon leave competitors eating your dust.
Gravel Riding. With Extra Velocity. While some may like to take it easy and others love a gravel race, the RX8 SPD cycling shoes are definitely focused on that speedier end of the gravel riding spectrum. This race-inspired focus is ably demonstrated by the use of a super-stiff carbon composite sole, ensuring all your watts are efficiently transferred to the pedals with little waste, letting you crush gravel roads at speed. The sole unit also features stripped back TPU lugs, reducing overall shoe weight while still maintaining sure-footed performance when you're off the bike. With their two-bolt MTB pedal compatibility, you're also assured of the best pedalling efficiency and stability as you zip from gravel to road and back to gravel again. Dynalast Design x BOA IP1 Precision Adjustment The upper of the RX8s is a one-piece synthetic leather construction, wrapping the foot snugly and holding the foot stable as you pedal - it delivers all-day comfort and performance in equal measure. Shimano's DYNALAST design conforms to your foot shape to eliminate hotspots and it ensures you have natural and smooth pedalling motion, even across rough terrain. Next comes the BOA IP1 dial technology - this allows you to customise the fit precisely to your foot and to spread pressure evenly and comfortably, even on the fly. With 1mm of micro-adjustment, you'll always be able to get the fit just how you like it. Lastly, with Silvadur antimicrobial inner soles you'll also finish the day with fresh feet, no matter how intensely you've been riding. If your cycling thrills come from speeding along gravel roads, maybe even looking to race, then the RX8 SPD Shoes are the shoes to turn too. Remarkably light and super-stiff, these shoes will soon leave competitors eating your dust.
Gravel Riding. With Extra Velocity. While some may like to take it easy and others love a gravel race, the RX8 SPD cycling shoes are definitely focused on that speedier end of the gravel riding spectrum. This race-inspired focus is ably demonstrated by the use of a super-stiff carbon composite sole, ensuring all your watts are efficiently transferred to the pedals with little waste, letting you crush gravel roads at speed. The sole unit also features stripped back TPU lugs, reducing overall shoe weight while still maintaining sure-footed performance when you're off the bike. With their two-bolt MTB pedal compatibility, you're also assured of the best pedalling efficiency and stability as you zip from gravel to road and back to gravel again. Dynalast Design x BOA IP1 Precision Adjustment The upper of the RX8s is a one-piece synthetic leather construction, wrapping the foot snugly and holding the foot stable as you pedal - it delivers all-day comfort and performance in equal measure. Shimano's DYNALAST design conforms to your foot shape to eliminate hotspots and it ensures you have natural and smooth pedalling motion, even across rough terrain. Next comes the BOA IP1 dial technology - this allows you to customise the fit precisely to your foot and to spread pressure evenly and comfortably, even on the fly. With 1mm of micro-adjustment, you'll always be able to get the fit just how you like it. Lastly, with Silvadur antimicrobial inner soles you'll also finish the day with fresh feet, no matter how intensely you've been riding. If your cycling thrills come from speeding along gravel roads, maybe even looking to race, then the RX8 SPD Shoes are the shoes to turn too. Remarkably light and super-stiff, these shoes will soon leave competitors eating your dust.
in 2 offers
The lowest price for Shimano SH-RX800 Shoes - Black 45 right now is $413.59 at Sorted Racegear.
The all-time low was $189.99 on 30 Nov 2025 — today's price is 118% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 9 May 2026.
Last updated at 09/05/2026 23:04:29
Shimano RX800 Shoes in Black
Delivery between 15–21 May $28.18
Shimano RX800 Shoes in Black
Delivery between 15–21 May $28.18
originally posted on REI
I would recommend looking at the Shimano RX8 sizing chart to figure out your size (https://imgur.com/HjKBR9B). My Nike 10.5's are 285mm long so that put me in a 45 when I normally wear a 44.Sizing caveat aside, I really like the BOA lacing system, pulling the knob outwards allows you to quickly release the tension and turning the knob to tighten after you get your foot in is quick and convenient.The sole is carbon so really really stiff (also marks easily if that bothers you). On the bike it feels really good. Not so good off-bike though, feels kinda clonky walking around. Better than a road shoe but not as nice as I expected.Overall I would buy again, but if buying from REI, check to see if the XC5 will work for you. Depending on your needs might be enough if ... MoreI would recommend looking at the Shimano RX8 sizing chart to figure out your size (https://imgur.com/HjKBR9B). My Nike 10.5's are 285mm long so that put me in a 45 when I normally wear a 44.Sizing caveat aside, I really like the BOA lacing system, pulling the knob outwards allows you to quickly release the tension and turning the knob to tighten after you get your foot in is quick and convenient.The sole is carbon so really really stiff (also marks easily if that bothers you). On the bike it feels really good. Not so good off-bike though, feels kinda clonky walking around. Better than a road shoe but not as nice as I expected.Overall I would buy again, but if buying from REI, check to see if the XC5 will work for you. Depending on your needs might be enough if just casually riding.
originally posted on cambriabike.com
Buying shoes is difficult. These are great shoes, stiff, well built and comfortable, but narrow and thus long for its size in this style. Knowing which last Shimano uses is impossible unless one is replacing the exact shoe from a year before. I tried on 3 different lines of shoes in a shop, each fit is different. Honestly, if I'd had the chance to try these before buying I'd have bought others. But, I'll be riding these for the season, as there's no opportunity to try on all the types to find last that actually fits.
originally posted on jensonusa.com
I had really high expectations for the RX800's. I've been using Shimano ME7's for 2 years and I absolutely love them. I really like the design of the RX800 and the overall concept. Unfortunately, the fit was a tad large and they were a bit uncomfortable when I first tried them. After a bit of break-in, they became tolerable and eventually pretty comfortable. These things are stiff, so I was excited to replace my roadie shoes/pedals and go with something more capable in off-road settings. The first time I struck a root, the cleat stripped clean out of the bottom of the shoe. This left me limping home with one foot clipped-in. I was able to re-install the cleat using the second set of bolt holes and I believe I'll still get use out of these. All said, I have never had ... MoreI had really high expectations for the RX800's. I've been using Shimano ME7's for 2 years and I absolutely love them. I really like the design of the RX800 and the overall concept. Unfortunately, the fit was a tad large and they were a bit uncomfortable when I first tried them. After a bit of break-in, they became tolerable and eventually pretty comfortable. These things are stiff, so I was excited to replace my roadie shoes/pedals and go with something more capable in off-road settings. The first time I struck a root, the cleat stripped clean out of the bottom of the shoe. This left me limping home with one foot clipped-in. I was able to re-install the cleat using the second set of bolt holes and I believe I'll still get use out of these. All said, I have never had a cleat strip out of a shoe and would probably go with a CX shoe next time.
| Application area | Gravel |
| Material characteristics | breathable |
| Outer fabric | Synthetic leather |
Shimano RX800 Shoes in Black
Delivery between 15–21 May $28.18
Shimano RX800 Shoes in Black
Delivery between 15–21 May $28.18
I would recommend looking at the Shimano RX8 sizing chart to figure out your size (https://imgur.com/HjKBR9B). My Nike 10.5's are 285mm long so that put me in a 45 when I normally wear a 44.Sizing caveat aside, I really like the BOA lacing system, pulling the knob outwards allows you to quickly release the tension and turning the knob to tighten after you get your foot in is quick and convenient.The sole is carbon so really really stiff (also marks easily if that bothers you). On the bike it feels really good. Not so good off-bike though, feels kinda clonky walking around. Better than a road shoe but not as nice as I expected.Overall I would buy again, but if buying from REI, check to see if the XC5 will work for you. Depending on your needs might be enough if ... MoreI would recommend looking at the Shimano RX8 sizing chart to figure out your size (https://imgur.com/HjKBR9B). My Nike 10.5's are 285mm long so that put me in a 45 when I normally wear a 44.Sizing caveat aside, I really like the BOA lacing system, pulling the knob outwards allows you to quickly release the tension and turning the knob to tighten after you get your foot in is quick and convenient.The sole is carbon so really really stiff (also marks easily if that bothers you). On the bike it feels really good. Not so good off-bike though, feels kinda clonky walking around. Better than a road shoe but not as nice as I expected.Overall I would buy again, but if buying from REI, check to see if the XC5 will work for you. Depending on your needs might be enough if just casually riding.
Buying shoes is difficult. These are great shoes, stiff, well built and comfortable, but narrow and thus long for its size in this style. Knowing which last Shimano uses is impossible unless one is replacing the exact shoe from a year before. I tried on 3 different lines of shoes in a shop, each fit is different. Honestly, if I'd had the chance to try these before buying I'd have bought others. But, I'll be riding these for the season, as there's no opportunity to try on all the types to find last that actually fits.
I had really high expectations for the RX800's. I've been using Shimano ME7's for 2 years and I absolutely love them. I really like the design of the RX800 and the overall concept. Unfortunately, the fit was a tad large and they were a bit uncomfortable when I first tried them. After a bit of break-in, they became tolerable and eventually pretty comfortable. These things are stiff, so I was excited to replace my roadie shoes/pedals and go with something more capable in off-road settings. The first time I struck a root, the cleat stripped clean out of the bottom of the shoe. This left me limping home with one foot clipped-in. I was able to re-install the cleat using the second set of bolt holes and I believe I'll still get use out of these. All said, I have never had ... MoreI had really high expectations for the RX800's. I've been using Shimano ME7's for 2 years and I absolutely love them. I really like the design of the RX800 and the overall concept. Unfortunately, the fit was a tad large and they were a bit uncomfortable when I first tried them. After a bit of break-in, they became tolerable and eventually pretty comfortable. These things are stiff, so I was excited to replace my roadie shoes/pedals and go with something more capable in off-road settings. The first time I struck a root, the cleat stripped clean out of the bottom of the shoe. This left me limping home with one foot clipped-in. I was able to re-install the cleat using the second set of bolt holes and I believe I'll still get use out of these. All said, I have never had a cleat strip out of a shoe and would probably go with a CX shoe next time.
Just ordered my 2nd pair of these shoes after 1.5 years on the first pair which are still very useable after extensive use but showing wear on toes.Regarding size chart, I use footwear in the 11.5 to 12.0 range (US). I wear size 46 for my Sidi road shoes and Specialized MTB shoes. No way my foot fits into a 46 for the Shimano RX8. But the 48 is great!Pros: Great comfortable fit (these shoes feel great!), excellent power transfer, feet never fatigue or get too hot (e.g., 90+ degree rides in the Sonoran desert). The shoe is a perfect interface between my foot and the pedal.Cons: On occasion when having to hike my gravel bike through deep, soft sand (like this morning), said sand readily infiltrates through the ventilation holes! I can deal with this (empty the ... MoreJust ordered my 2nd pair of these shoes after 1.5 years on the first pair which are still very useable after extensive use but showing wear on toes.Regarding size chart, I use footwear in the 11.5 to 12.0 range (US). I wear size 46 for my Sidi road shoes and Specialized MTB shoes. No way my foot fits into a 46 for the Shimano RX8. But the 48 is great!Pros: Great comfortable fit (these shoes feel great!), excellent power transfer, feet never fatigue or get too hot (e.g., 90+ degree rides in the Sonoran desert). The shoe is a perfect interface between my foot and the pedal.Cons: On occasion when having to hike my gravel bike through deep, soft sand (like this morning), said sand readily infiltrates through the ventilation holes! I can deal with this (empty the shoe!) better than hot feet! I am a bit disappointed with (what I perceive as premature) wear at the base of the toe but these shoes are not used on a road bike where they would never see a rock!
I want to like these shoes more than I do. I've used them 3-5 days/week for the last few months hoping things would improve, but they haven't. They are stiff and I like the boa closure, but my feet ache almost every ride under the outside balls of my feet. Not full on pain, but general discomfort. I normally don't need wide shoes, and these don't feel like my foot is cramped in them or that they're being stretched, but it feels as if the carbon sole is bowed up on the sides straining the outside area of my foot. Bummer to pay so much and find out after the first ride that these don't play too well with my feet. For reference, I'm 6'2" 200lbs and purchased 48s.
To be fair, I am roadie, and I have never been a fan of walking on cleats, which is why I prefer the SPD system. I also think (even for roadies) having little to no sole to walk on is just dumb. Granted I realized one may get more power from other clipless designs. This shoe is marketed as gravel shoe, but I was looking for a light weight, rigid, high quality shoe for riding on the road. This shoe ticks all the boxes. This is my first shoe with a Boa system, and once I figured out how to adjust it, it is great. I have about 150 miles logged on the show so far. Very happy with this shoe.I wear US9.5 and I went with EU44, and the fit is perfect for me. This is for Shimano RX8- Silver
These are very nice and almost too nice for off road shoes!The RX802's are very much like a road shoe in that they are lightweight, stiff and also fairly narrow fitting; not a problem for my feet but anyone with a wider foot should be aware. On the subject of fitting the sizing is typical of Shimano shoes I've had in the past i.e. they come up small. I'm a 44 in most brands but sized up to a 45 and that is fine with a bit of space in the toe box to allow for thicker socks. A 44 would have definitely been way too tight owing to the shape of the shoe and it's narrow design.A nice touch which I appreciated is that they come with interchangeable arch support pieces in the box to tailor the fit a little bit. This is an over-looked area with cycling shoes and so many ... MoreThese are very nice and almost too nice for off road shoes!The RX802's are very much like a road shoe in that they are lightweight, stiff and also fairly narrow fitting; not a problem for my feet but anyone with a wider foot should be aware. On the subject of fitting the sizing is typical of Shimano shoes I've had in the past i.e. they come up small. I'm a 44 in most brands but sized up to a 45 and that is fine with a bit of space in the toe box to allow for thicker socks. A 44 would have definitely been way too tight owing to the shape of the shoe and it's narrow design.A nice touch which I appreciated is that they come with interchangeable arch support pieces in the box to tailor the fit a little bit. This is an over-looked area with cycling shoes and so many have thin, flat insoles which lack any support and have a negative effect on bike fit.I should mention I've seen some reviews mention about walking and the shoes being a bit unstable, but though they are very stiff this has not been my experience. However, if you are looking for a shoe that is suitable for frequent 'hike-a-bike' action or extended walking off the bike (touring perhaps), I'd say these are possibly not the shoes for you.I like these shoes and though I wouldn't use them in the off road slop of winter (too nice for that!), they are so much nicer than wearing MTB shoes on my gravel bike. In fact, if I could only have one pair of decent cycling shoes to use across road and gravel set-ups, I'd choose these... so long as they were in a sale with a big discount as mine were!
I followed the size chart to the letter, wound up with a size 45. Upon receiving the shoes, the shoe was waaay too long. Like 2 sizes too long. It wasn't close enough to go "oh well" and deal with. At least an inch and a half of extra shoe. I bought these specifically due to having the 20% off coupon available and am really bummed to have wasted that savings on these. I obviously haven't used these enough to know, but I noted that the inside tongue rubs against your foot in a weird way since it subducts under one side and sort of "wraps" your foot. So there's only contact with the tongue on one side. At first it was quite painful to wear but that seemed to go away once the shoe "settled". So that may or may not be a problem. I wondered if that rubbing would cause ... MoreI followed the size chart to the letter, wound up with a size 45. Upon receiving the shoes, the shoe was waaay too long. Like 2 sizes too long. It wasn't close enough to go "oh well" and deal with. At least an inch and a half of extra shoe. I bought these specifically due to having the 20% off coupon available and am really bummed to have wasted that savings on these. I obviously haven't used these enough to know, but I noted that the inside tongue rubs against your foot in a weird way since it subducts under one side and sort of "wraps" your foot. So there's only contact with the tongue on one side. At first it was quite painful to wear but that seemed to go away once the shoe "settled". So that may or may not be a problem. I wondered if that rubbing would cause blisters over time. My Bontrager shoes' tongue is a normal design and it feels natural on the foot, but with these it's like one side of the foot has extra pressure on it due to the design. Could be nothing, I'm not sure. More use would tell.I bought these to use when commuting and road-biking because i wanted to clip-in, but also needed the ability to walk easily. SPD SL cleats never seemed to offer much benefit and I only use SPD. These shoes seemed to have a really nice, stiff sole and clipping in/out was smooth even with the added tread. I was really happy with the look, the tread, and the stiffness. It almost felt like walking in a normal shoe. They did not feel heavy. Such a shame the sizing is so off that I can't use them.I really want to love these, but we'll see if I can get the sizing right. I'll give them another shot with a new size. These are pretty narrow as well, so if you have wide-feet don't even bother. They widen up a bit when you wear them but as someone with wider feet i could instantly tell these are very narrow shoes. More narrow than my bontrager cycling shoes of a smaller size.*Note: on every other website, these shoes come with cleats. REI doesn't seem to do that, not a dealbreaker but worth noting. Buy cleats if you need them. They did come with neat arch supports you can choose to use or not, i thought that was a nice touch.
Yes I went for the flashy (for me) silver RX8 shoes and I'm glad I did. They feel a lot stiffer than my old and absolutely done Fizik X5 shoes, they served me well and these Shimano shoes feel like they will do just as well. I notice the extra stiffness when pedalling which is good, also when walking in them it's more noticeable which might not be as good, that's a personal preference. The boa fasteners are a must for me, laces would come loose or get caught in my view and the boa fasteners are so easy to loosen and tighten when on the bike if small adjustments are needed.All I need now is time at home to go on some more gravel adventures and really test them out. I'm so excited I could crush a grape. Only mature readers will get that ;-)
Sizing runs a little short, though width is standard. The tongue is weirdly connected to the shoe's uppers on both sides, which makes getting into it a bit more work than is typical. That tongue arrangement also makes the shoe rather uncomfortable; sometimes I could fidget with it enough to make it reasonably comfortable -- but then, during a ride, I would always end up feeling it again. I want cycling shoes that "disappear,' meaning I don't notice them at all. These are not those shoes, at least for me.On the plus side, they are light, stiff, and nice-looking. But comfort rules, and these aren't comfortable for me.
| Application area | Gravel |
| Material characteristics | breathable |
| Outer fabric | Synthetic leather |
