I'm going to start this one off by saying GO TO A BOOTFITTER! This is more a guide for people who fit into this boot; as a boot fitter myself I am not recommending this out of the blue. If it fits you, and matches your performance perspectives, then great.
Here are the stats:
Weight-- 165 lb
Terrain-- Mostly park, but a little bit of everything
Flex-- 130 with 2 removable bolts (100-130)
My actual size-- 26
My actual last-- 100mm
Yes, I wear a boot that is too narrow and too small. I am also a boot fitter so I have the tools and knowledge to modify the fit. Almost every boot, even the correct one for you, will need work to make it as close to perfect as possible. I would never sell a boot to someone the way I like it to fit me. If you like pain, you can join me. Custom footbeds are also a necessity to get a proper fit. It's better to make room in a boot than to fill in space.
So yes, this is a narrow and stiff boot. This boot fit me beautifully in a 26/26.5 right out of the box. I knew that would be a problem because I have a tendency to go through boots pretty quickly. You need to leave room for the liner to break in.
The Fit-- As I've said its a 97mm last. The RX 130 LV has a narrow and shallow heel pocket (I had to grind the heels out quite a bit, I was getting bone spurs on my heels). The toe box tapers from the big toe to the pinky toe. If you have a more squared off foot, this will not work for you. I did a little grinding in the toe box for a couple more mm or room. The ankles are fairly narrow as well, as is the cuff. So this boot is narrow all around, perfect for my chicken legs. One problem I always have is the cuff being too spacious. I don't have to crank my top buckles at all. Toe buckles are very loose, undone most of the time. You want to avoid buckling your toe buckles tight at all costs; that is where you start cutting off circulation and getting cold feet. One finger pressure is perfect.
Liner-- One of the best liners I have ever had my foot in. Very dense and built very well. Allow for the liner to break in after a few days of skiing.
Soles-- Replaceable toe and heel lugs with rubber that makes walking so much more pleasant. Best soles I have ever had on any pair of boots.
Flex-- Off the bat this boot was ridiculously stiff. I popped the top bolt off each one to soften them up. After about 20 days on hill I put them back in because the boots softened up. Now they are perfect. I like a stiff boot because there is so much more power transmission to the skis. So much more precision on rails than certain "park oriented" boots that are complete mush.
Weight-- Not light, not heavy. I don't have an exact weight on them but the weight hasn't had any effect on my skiing.
Durability-- They have been extremely durable. The buckles are strong. The booster strap is incredible. All the stitching is still like new after 50ish days of skiing. The plastic is think and there are no giant gouges or scratches that would worry me. The soles are still in great shape, even after having to walk through parking lots.
Overall, the RX 130 LV is definitely the best boot I have ever skied. You will notice a huge difference in comfort and performance when you go to a boot fitter and spend the time and money to get what is right for you. Ski boots are not sneakers, they will not feel like slippers right out of the box. They take time to break in. Don't fear a stiff boot either!
So I'm 6'2 about 190lbs, ski a 50/50 mix of park and all mountain and consider myself a pretty aggressive skier. I measure up as a 28 unweighted and a 28.5 weighted with a last of 102mm in my right and about 103mm in my left. I have a narrow boney foot with quite prominent 5th met heads and navicular bones.
Out of the box these fit pretty nice to be honest. I'd say these a pretty true 97mm last, having tried lots of other "LV" (Salomon xmax, Technica Mach1 lv, Atomic redster pro) boots i'd say these are probably the lowest volume.
Having dropped a shell size to a 27.5 obviously they were pretty tight on my toes (shell check of about 12-13mm), with the addition of a custom footbed i managed to get them to a point where i felt comfortable enough to ski in them. After 3 or 4 days i did some shell work on them to get them perfect, this included a minor punch on my left 5th met head and right navicular, both of which i expected to do and usually do in any boot i wear. I've found some lange boots don't punch very well but didnt have an issue with these, and it appears to have held nicely.
Performance wise they are great. When you have them buckled tight with the power strap pulled tight they are stiffer than certain 130 boots out there, i tried the ghost 130 and found these noticeably stiffer, but that is always a trade off of a 3 buckle boot i guess. Lateral stiffness is good, i've not found myself wishing for more support even when i'm skiing pretty stiff GS style skis. They use a semi soft boot board which i think probably does help a little with hard landings but i haven't had the chance to swap out onto a hard boot board to see the difference.
I've put probably 40-50 days on my set now and everything seems to be holding up well. The liner still feels full, i'm not noticing any movement where there shouldnt be. All the buckles are still in great shape and the soles are doing well, especially considering the amount of walking i've done on them. The soles are worth touching on, very grippy, makes walking a damn sight easier but still hard wearing, don't think i'd swap back to anything with a plastic sole now.
I would definitely recommend anybody with a narrow low volume foot looking for a high performance all mountain boot to try a set of these on. Go to a boot fitter and get fitted but these are worth a try for sure.