I usually change my shoes after 300-500K. My first PX reached 1000k and has now been replaced with the second pair of PX. Adidas has an absolutely outstanding shoe here.
@@laurainthehaute918 they are unstable just walking around (reminded me from when I tried to walk in my moms high heels as a kid!) but once I get moving on even surfaces, I don’t notice any instability at all.
Lol I do remember high heels and actually could run in them! But now I wear “dress” running shoes. I’m an avid runner but a 67 age grouper so I appreciate your warning re instability. But enjoy them for me. They do look fun!
This is my favorite pair of running shoes. I usually wear them for my long runs with marathon/threshold efforts. My pair has nearly 400 miles (no rolled ankles even on light trails) and the outsole is still barely used and the midsole is still as bouncy. The upper got a bit less stiff with time too.
I’ve run over 150 marathon training miles in my Prime X shoes. I’ve even taken them off road. No trouble with stability. My legs feel great the day after a long run. Only gripe is the narrow unpadded tongue!
i love the shoe. i run in almost all the time and the best part, is the recovery. after 10 miles, i don't feel the least bit fatigued as compared to my other trainers. this allows me to to edge out more miles in my week and enjoy running.
LOVE the protection this shoe gives......not as unstable as people perceive, for good roads/even camber, once you have run in them for a while it feels normal. Also for people going on about illegal....there are some "legal" shoes in larger sizes eg size 13 Alphafly that are way above the 40mm limit (as the limit is set against a smaller size) so my size 7 in the Prime X is comparable with a Size 13 Alphafly....... This is a FANTASTIC option for a marathon and even more so, TRAINING for a marathon, it saves the legs and aids recovery so much!
👍 Excellent review - as usual - by Kofuzi! Great, informative and insightful video of interesting information and scientific details. Enjoyed every bit of the video. Came right on time as I'm buying new running shoes soon. Regards to you Kofuzi! 👍🤝
I certainly don't *need* this shoe but I'm very intrigued and *want*, which means I'll pick up a pair eventually. Haha. Running is a fairly new hobby for me although I did do a lot of running during my teen jock years (baseball, football, tennis, and track) so my body and legs are well conditioned for it. I think I'm past the point of participating in races now but I do run 70~80 miles per week for the sheer love of it. I split those hours equally between the road and trails in SoCal. Personally, I enjoy running technical trails with steep rock hills the most but road running is great too. I have over a dozen pairs of very good road and trail running shoes and compared to my previous hobby - audiophile gear - it's a very economical and affordable hobby. Compared to headphones, DACs, amps, and speakers that run $5K+ each, shoes are pretty cheap and I chuckle at people complaining about a pair of shoes costing $20~30 over another pair, etc. But I guess it's all relative so I understand. The more I read/watch the reviews about the Prime X, the more interested I am. My main road running shoes in my rotation right now are the VF2, Endorphin Pro 3 & Speed 3, and Mach 5. I'll definitely pick up the Novablast 3 as soon as it becomes available and I'd like to get the Invincible FK2 just to experience the softness of it on days when I just want to cruise in comfort, but the Prime X seems fascinating even though I probably won't use it more than once every other week for a 10-mile run. Seems like a certain kind of muscle sports car ride. You are not going to take such car on a drive to your local Costco or on commute to work but it's nice to take out such a car on a weekend to stretches of road where you can rev up the engine and have fun. That's what I see this shoe as. It's obviously niche but that's the whole purpose of it. Fortunately, I do have long stretches of park roads nearby that are flat and straight where I can get the best out of it. The latest version in linen green also looks the best out of the different colorways I've seen. Looking forward to it. Seems like a wild and fun ride!
When I see the slowmo ... its just looking OUCH, they are so unstable it cant be healthy to run in them for a long time. Your ankles go like BRRRRRRRRRR, and you are an expert runner, imagine those for a beginner or hobby runner, they destroy their body with it.
I’m really not an expert runner; I’ve always told people that I run funny. But when I say that this shoe really gets people over-excited, this is pretty much exactly the type of ankle comment that I’m talking about.
@@kofuzi oh, I honestly never heard about them, I just saw your footage of them and was shocked. For me, already the Nike zoom fly 3 and 4 is way too much, my ankles do what they want in them. I can't imagine what it would be with these. To me you are an expert runner ❤️
They are amazing - and weird. My ankles start turning when I stand in them initially. But when I take off ....NO PAIN in my old legs and I can go all out. NO OTHER shoe enables me like this.
Very cool. I have the Addidas Adios Pro 2 , I love racing in them. I have been thinking about the Prime X but I wasn't sure, Thank You for clearing up some of my bias toward the Prime X.
Am looking for a approximately 3hr long run shoe and was steering towards Alphafly at $163. This video is steering me to Prime X.... Thanks for the info.
Fun shoe! Great energy return for my 56 yr old legs. 350 miles in my first pair and they don't feel much different to my new pair so will continue to use them. I'm a huge fan of light strike pro Love the aaapro2 too
I’m amazed in how the issues surrounding the legality, or illegality, of this shoe caused me to run out and buy it! Hey! If it’s illegal it’s got to be good right? Seriously, why is a stack height and carbon plat number an issue? Off the shelf shoe should be legal…Heck run 100mm stack if you want! As long as they are available to all, then let it go! Sheez,
as a runner with supinating gait are those safe for me? It looks like outer sole is of less height than innersole which would make my heelstrikes even more unstable than is common for a regular supershoe. Can anyone confirm this suspision?
Hi Mike, Jay from LA. Hope you doing well. I enjoyed Endorphin Speed a lot and I want something like ES from other shoe companies. Can you recommend a couple? It would be for daily training and LSD and tempo.
As much praise & good reviews make the case for the Prime X, for me it is too tall, unstable & not worth taking a risk on getting injured. I still believe the Prime X in future versions can be re-shaped & made into an alternative of the Adizero Adios Pro 3
(M59) just a 5 mile run resulted in activating an old gluteus medius injury in me. I picked up a pair on sale from RRS for $150 due to the glowing reviews, but this shoe is incompatible with my gait, I'll be returning them. I have to concentrate to keep my foot on top of the midsole, which probably led to the hip pain. There are no elements on or in the shoe to keep the upper and your foot from working off the edge, the strobel plate and upper are right on top of the midsole, not IN, only the stitching keeps your foot in place. It FEELS GREAT, but you need to have a very good neutral gait to use this shoe. I land on lateral heel and midfoot, and toe-off from my big and second toe. If version 2 has the midsole come up a bit outside and cradle the foot, it would be an excellent trainer for a lot of people.
@@leejarrett4928 I just had to stop running for a few months and then gradually get back into it. It was probably a year+ before I didn't notice it anymore. At the time, I didn't do any rehab exercises, but hindsight is 20/20. Ten years later, I still have a bulge where the tear happened. And as mentioned, it can still flare up. Super cushy, stable shoes like Hoka Stinson and slow pace, like 12:00, helped me get in miles after that first few months off. Whenever I have some sort of issue, right now it's PF flare up, I put on my "orthopedic" shoes; the Stinsons with a more ridgid arch insole (Sole brand Dean Karnazes, no longer made, or Superfeet Green) and slow way down. For me, hitting the trails put less stress than roads, maybe because of slower pace and varied footstrike. The new Bondi might work, too, or something else wide and soft. I've tried to "run through" several injuries in the last 10 years, with no success. I've decided that just taking 2-8 weeks off is the best, fastest course of action. Better undertrained than not being able to run at all.
@@jasicjan by "those" I assume you're referring to the Prime-X? No, I would not recommend them. If your shoe wear pattern shows that you land predominantly on the edge of your heel, either medial, or lateral (supination), there is not any mechanism in the shoe to keep your foot from "falling over the edge". Like me, you'll adjust your gait to keep from tipping over, and that will result in some sort of new aches and pains and possibly overuse injury. The Prime-X STRUNG is supposed to be better, I haven't tried them. The shoes that have never caused me pain on runs of any type are Skechers MaxRoad 4 and 4+ (both discontinued). The downside is that the outsole rubber wears through at only 200 miles. I have the New Balance SC Trainer, and they work for supination gait like us, but have a plate so are stiff and not comfortable for long and easy runs. For "fancy race shoes" I have the New Balance RC Elite V2, and they're great. I also put a lot of miles on Saucony Endorphin Speed-2 and 3 (I like the 2 better)
I just don't know about higher stack mid sole shoes. This shoe reminds me of Hoka Bondi X. So, will you have the same feedback sensation running on Bondi X? I am just wondering.
Well they've now got a new colour coming, which I love the look of so bugger it gone and ordered a pair. I have the Takumi Sen 8, and Pro 3 so know the fit, and the breaking me in that'll be required. I'm hoping these will be my new daily's, as I plan on squeezing in as many miles as possible just to gain that advantage on other runners I know. Can't wait to get them on, I live right by a trail and know from the Adios 6 that the conti grip works very well. Don't worry it's a flat trail 😉
how is the fit compared to Takumi Sen 8 ? is it the same ? Sen 8 is a bit long imho but it was fine for me anyway, now I might buy a Prime X but there is just a few sizes left
I am a size 14 US, I am interested to know what the stability would be like in a larger size. I assume the 50mm stack height won't be too much of an issue with a wider shoe. I also have a bulged disc in my back from doing 200kg+ dead lifts when I was younger so I need max cushion otherwise I am in a world of back pain trying to run.
@@kofuzi thanks for the info, I bought some a couple of days ago and have had 0 instability issues so far. I have done some running on gravel/dirt tracks with off camber corners etc and had no issues at all. I have never had instability issues with any shoe so I was some what worried when I saw the reviews but it seems fine for me so far.
I have real problem with my primeX.,.need help here sir kofuzi. I have been using this shoe for almost 4 months now and this is the first time I have a calf cramps on around15k. Before primeX I have been using bondi6, NB 1080 v10 on my marathons, but never gives me cramp even though i'm very tired. Not sure whats is wrong, me or the shoe, I am under pronation and I think is that the problem?, is primeX stability shoe?.. Hoping for your response. thank you
Prime X is the opposite of a stability shoe. That may be it, although feeling it in the calves isn’t what I would expect if the shoe isn’t a good match for someone. Maybe there is a difference in sweating/hydration now that it’s summer time? Or perhaps you are running at a different pace in these shoes versus the others?
@@kofuzi thank you so much sir kofuzi, yes i am running faster on this shoe versus the others., i wont give up on it, i will keep using it and observe.,,.thank you again
I love this shoe I actually look forward to my runs in this shoe. It's my cruise easy run, Adidas pro 3 my fast training run alpha fly my fast race shoe. Btw love your reviews keep up the good work
Great videos, thanks! Do you plan on making a video about the Alphafly 2? It would be interesting to see the difference between the newest Nike and Asics shoes….
I don’t think elites are typically worried about BQing, but I suspect that even they could submit for elite field using a time run with the prime x. Racing it for prize money may be a different analysis
Kofuzi, need your help! I’m currently on the fence between Nike Tempo Next %, ASICS Magic Speed, Adidas Adios Pro 2, Takumi Sen 8, or Prime X as a marathon workout shoe. Looking for cushion and responsive for 18-22mi runs with 8-12mi at 5:30/mi pace. Which of these would you recommend? Currently use an old pair of Vaporfly v2 for mile-half marathon workouts, but I’m about to retire them.
Sounds like the Prime X is right up your alley. I don’t know what other shoes you have for your other runs, but if you already have a race shoe in mind then the Prime X sounds perfect to slot into that role for longer effort runs.
South African Nick Bester ( he has a run vlog) who lives in London, thinks they are awesome. Although he used them in the lead up to Amsterdam Marathon, which he did in 2-20 , but he had to run in the Adios Pro.
I think if you’re looking for one shoe to train and race, then the AP2. But if you have a separate racing shoe in mind, then Prime X may be what you want. (I have not tried the Tempo Next, however)
@@kofuzi thanks guys, appreciate the responses. I currently race in a new pair of Vaporfly v2, but just received the Alphafly v2, so that might be the new marathon racing shoe. I’m going to order both Prime X and AP2 and see which one feels best for me. Thanks again!
a bit late to the discussion ... I have AP2, Tempo Next, Sen 8 and Alphafly ... they are quite different. Tempo Next (my favorites) are quite unique because of the Air Pods. I've been using them a lot. They are loud but if you like to run fast and having a lot of cushioning, they are great. Everybody keeps saying the Prime X are illegal for races but the Tempo Next are illegal as well. Now with AP2, I like them, they look great but I don't feel like I want to run fast with them, I tend to run slower when using them, which is perfectly fine. More recently I got the Sen 8. I was worried they would lack cushioning but they are great, they are bouncy even with the lower stack height. Personally, I like to have many shoes depending on the type of run. I also feel it helps prevent injuries. I like the Alphafly for racing but I seem to get runner's toe when using them (even when sizing up).
