Cup and cone, won't loosen up if you loctite it. Hub that's dedicated to 110 mm axle builds a stiffer wheel than convertible hubs because the flanges are more spaced out.

Cup and cone, bearing preload lockring comes loose unless you loctite it.

This is for the M810 front hub. I bought it as I had a 20 mm axle and wanted to use centerlock rotors because I believe centerlock is a lighter, easier to use and more elegant system than 6-bolt. That and Shimano's rotors are excellent performers, especially at staying straight and true. But I was aware prior to my purchase, based on other reviews, that the cones would loosen up if left to their own devices. So I bought the appropriate cone wrench at the same time that I bought the hub. Indeed they did come loose - I built the wheel and had a few trouble free rides before I noticed I could wiggle my wheel side to side a little when I grabbed the rim.

So I got a small tube of blue loctite, opened up the hub to see how the bearings looked - no problem there at all. Put on the cone and before putting the lockring on, put some loctite on the threads where it would sit. I figured I should not loctite the cone itself because I did not want to contaminate the inside. Got everything adjusted and let it sit for 24 hrs (loctite takes a lot longer to cure if your metals are coated or anodized, which these are).

Been riding the hub ever since without any issue. I had probably 5 rides prior to the loctite job and now have maybe 10 rides since.

Similar Products Used:

Hope, DT Swiss, White Industries, Shimano XT

None... actually being able to centerlock my rotors is pretty nice. Not quite sure what the other guys are talking about, you don't need Saint rotors. I'm using Formula rotors and they work perfect. The gold looks pretty cool too.

Hub came from the factory minus one ball bearing (Shimano QC fail...) Shimano requires a specific 28mm cone wrench to tighten or open the hub. Hub periodically comes loose (usually every month or so) and then gets rebuilt. Grease is always completely burnt and dirty (gotta love cup and cone). Really hard to retighten without overtightening or undertightening.

I was honestly really stoked when I saw my bike would be coming with FR600 hoops laced to Saint Hubs but after this experience I will NEVER use a Shimano hub again. They need to learn that cup and cone hubs do not work for the extremes downhill bikes face.

There are no weaknesses to the hub.

Except for the fact that you need to use Saint specific Rotors. But even at that shimanos center-lock system is a gift from the gods. Also the only Issue I could see is that I looks like you need some special tools to take it apart. This hub is great.

Good hub. buy it. Don't worry about buying new rotor for the centerloch system. You'll be treating youself right is you do.

Similar Products Used:

This is my first 20mm hub

super stiff and strong. not too pricey either. a quality peice of machinery.

must be used with saint brakes

This is a sweet front hub. It is Shimano so you know it's quality and it is beefed up to handle the rigors of the DH and FR crowd it is made for. I was building a new bike up so I didn't mind getting all the new saint components but it would be a pain to have to buy all the saint stuff to stay compatible if I only needed a hub. But I say go for it and get all saint series. You will love yourself for doing so even though your wife or girlfriend might not.