... roll a few meters on these before realizing how great the bearings are
926541
I only had to roll a few meters on these before realizing how great the bearings are. I went with this wheelset because:

- rim depth (Some of the deepest aluminum wheels out there)
- spoke count (16 front, and 21 rear. I wanted low spoke count- I'm 120 lb)
- weight (1725 grams. I'm riding in flat Florida, so I don't need to spend crazy money to save a few grams)
- price point (Especially considering the rim depth, it's hard to beat. Although price on these is widely variable depending on where you get them!)
- Aesthetics

While they're not the best in any category, they are a good combination of every aspect. If you aren't optimizing your gear to the point you're trying trim a few seconds off a century, then I recommend these wheels.

A few things to note:
The freehub is very quiet, but the clicking oscillates, which is surprising for a wheel that seems to be such high quality.
The black finish on the rim is "matte", not a smooth glossy finish you might expect.

I wouldn't let either of these minor issues deter you. 5 Stars.

Update 8/8/15:
I've put 25-50 miles per week on these for a few months and ridden a century on them. They're holding up great! One negative though: I rode through some sand, and it got stuck around the edges of the stickers where they were beginning to peel off. Yes, I've had them through rain, but they need to make the logos last. I'm going to have to de-logo if I don't want sandy, peeling decals :(
331971
They're made out of delrin and have good bearings. The problem is that genuine wheels are 23.96ish mm in diameter, while these are 25.00. They just barely work in my setup. Buy genuine v-slot wheels, they're expensive but worth it. Don't make the same mistake I did.
1672630
The bearings are very good for racing they last longer then the reg bearing that you can get for quads and dirt bikes.
4906943
I am a STL roller skater. I received my bearings last week, had them changed out over the weekend. What a difference, these bearings are amazing. I roller skate about 2-3 times a week, I feel like I am floating and not working as hard to get a great roll in. Worth the price paid and satisfied with the product.
2372088
I bought these little dudes and thought they were pretty good.  I then did a little research and got some grade 5 silicon nitride balls to put in them. Super Swiss 6 ceramic bearings. It is the best bearing until frictionless magnetic bearings are a reality. I can't even begin to describe how smooth and fast they are.  I pushed off once and not even that hard and all of a sudden I am going uphill about 100 mph. I didn't know how to stop, so I just crashed into a billboard as I jumped the hill. Almost died. Anyways, you might want to stick to the stock bearings. They are still really smooth and fast, just a lot less dangerous.
1895298
I am 24 years old, and I have been buying B'reds since I began skating years ago.

One session with these, and I was never going back to another brand.

After owning a set for a couple months, you really begin to appreciate how low-maintenance these bearings are.

Very quiet and smooth after hundreds of sessions.

Edit: I'm now 26 and I have gone through about 15 sets of Zealous between 4 or 5 set ups. Zealous bearings are super smooth and possess an unparalleled quiet-stealth factor.
668637
If you like to change bearings often then buy these.  I put a little over 10 hours of mowing time in with these bearings in my spindles. One set desentigrated and set grass on fire on top of the deck,  found a second spindle with a half inch of slack.  The third was ok.  I knew better but could get these the next day. The last set of NGK's lasted 5 years.
2702703
Ive put quite a few miles on these wheels now. And, the only complaint i have is that the bearings seem a bit slow overall. The wheels, themselves are really nice and soft (NOT for sliding!) and make for a pretty cushy ride. And although the bearings are a bit slow, they would still be totally fine for some downhill or even flat if you don't mind pushing an average amount. They are far better, still, than bearings you would get on a cheap Wal*art board or something. Just don't expect pro level speed/distance out of these. Id still suggest these to a friend (and i have).
580900
I wanted this product because of the large flat surface for my feet.  They were noticably hard to spin. On my first ride, I got a clicking sensation on one of the pedals, repeatedly, on the upstroke.  Rather than return them, I decided to dissasemble, regrease, and adjust the tightness of the retaining nut.  Now, they seem to be great..and spin freely.  I was lucky because I never worked on pedals.  They are a lot of tiny ball bearings inside that require careful handling.
603174
Bought these to use in a Fidget Spinner. They worked great. The barely spun at first though. I popped the shields on both sides off, washed the bearing with soapy warm water, then in isopropyl alcohol. It spins for about 1:30 easily. Really simple and gets you to the smooth spins of much more expensive bearings.

Definitely worth it.
2493193
Bearings are really cheap. Skates are good for the money, but you will need to replace with better bearings.
657057
I bought these for one of my 47" longboards and they rock! The breakin period is several weeks or roughly 20+ miles but they're cream once you get past it. I board 20-30 miles a week and it still took me around two weeks to get them rolling at their smoothest. Sweet bearings that I expect will outlast any and all competion aside from being smooth, fast and affordable!
292582
Nice bearing definitely smoother than old ones. I like that you can easily remove shields for cleaning. Price is high but if they last a few years I be pleased. 4 stars because price.
2902439
After logs of internet research I bought these for price. I'm 50 male tall and heavy ish 240
I skate with my daughter at indoor rinks and found the rental skates to be horrible
not knowing much about skating or its equipment my first impression of these were good
my box was labeled USA size 11 and fit exactly perfect. I'm 10 1/2 to 11 size
closer examination revealed what I thought the wheels were too soft for indoors on wood
and I was right. The soft grooved tires seemed to be too unforgiving on the smooth indoor
so I will be replacing these wheels soon with harder like 95a grip wheels
the 7 bearings are just fine and don't see what all the fuss is about
from my research on the net almost globally the claims of 9 bearings on these skates must be
a manufacturer typo error, the box is clearly marked 7 even on pictures of advertisements
the wheels must be better outdoors but I don't plan to skate on the pavement so I'll probably
sell  them or give them away
it seems the laces were hard to pull tight and I use a hockey skate lace hook I had but they
 seem to be getting easier to pull the more I use them
OVERALL. after using them for 3 hours straight
for the price they can't be beat
4967277
These are by far the best bearings. I used these in my homemade fidget spinners and when i got them they did not spin that good,but when i clean them the spun really long. these are almost as good as ceramic bearings if you clean them really good!
1109188
The bearings where as good a quality as the MTD or OEM came with seals and fit
the spindles like OEM's cost was great ( Half the Price and they are holding up in my deck great. There quiet as they should be and holding up against the heavier Gator Blades I use. All in all very happy I will be ordering back up.

Joseph
Handi-Capable
4760124
When you get these in the mail, make sure that they are the right ones. My bearings were on my doorstep extremely quickly, however when I opened them up they said reds on them. We went through the process of returning them, and on the day we dropped them off at the post office, the right ones showed up. And of course they are perfect and spin forever