Quiet, smooth and powerful with improved modulation.

None so far.

I have very basic Tektro Novela brakes on my 2012 Trek Marlin. The rear rotor was warped, so I stopped at my LBS and purchased these at their recommendation. I have been debating between upgrading bikes and just upgrading a few weak points (brakes, fork, tires) on my bike. A warped rotor forced me to do a very small, but noticeable upgrade today. Although the pads and calipers are still sub-par, the rotors have made a surprising difference in modulation and braking feel. Now I'm anxious to see how they will do with a set of clearance priced Elixir X0 hydraulics I have had my eye on!

Quiet - I didnt hear much noise from back there.
Stopping Power - Felt great out there. Seem to lock it down when I needed it to.

Durability / Strength - These came stock on my 2012 stumpjumper comp - I picked up the bike at the end of the season, so I got a hand full of rides out of the bike and on my last rip when I could feel at some point something happened I felt very slugish and had to fight the bike. When I was packing the bike up I found out my rear wheel barely free spun. I bent the rotor real bad, no idea when or how. But it was so bad the LBS mech couldn't figure out how I did such a bend and wasnt able to straighten it.

The mechanic told me that these rotors were real good and he's never seen a warp like mine. So I think it was my fault, must hit a rock or something. Either way it did happen and these seem to be the most costly rotors in the size/spec I need. Kinda frustrated it happened so early in owning the bike but sh!t happen right? From what I can tell a solid rotor. *the low rating is because it warped after so few rides, be it my fault or not, never had this problem on my mech tekro disc's I rode in the same trails for the 4 months prior.

Bullet proof, quiet, consistant, makes Avid brakes work right.

A bit heavy

The 8" heat shaeding rotor made my Avid brakes useable. I live at the bottom of a 3000' descent. It's a blast with some long descents and twisty single track. But it's really tough on brakes. The 6" stock rotor whinned, sqeeled, gobbled, and dragged after every ride. I was not going to be sanding rotors when I should be riding. The Formula brakes on my other bike don't need that! Instead of tossing the bakes I tried the 8" HS rotor on the front. Once set-up (Avids are a bit finiky), they work great. No probelms at all not. They are reliable, consistant, quiet, and don't fade. They make hte Elixrs perform as advertised. Highly recommend these rotors.

P.S. As with all brakes and rotors (esp. Avid), make sure you bed them in properly (gently)!http://www.bikeradar.com/gear/article/workshop-how-to-bed-in-disc-brake-pads-31337/

Similar Products Used:

Avid stock rotors, Avid 6" rotors.

My first time at Downieville I realized how much I still have to learn... ;-) As a result of that the 160mm stock rotors from the Avid CR's started to "fade" as they were getting hot: NOT the right time for weak brakes. I read about the HS1's and decided to give them a try. I ordered the 180mm rotors with adapters and after a short brake-in phase they behaved much smoother, better modulation, more "bite", are more quiet than the stock rotors. Don't expect miracles from getting new rotors, but they do behave much better.

Ordering the right IS/post adapters can be tricky, since most Avid rotors that size are 185mm, while the HS1's are 180mm.

Effective and inexpensive upgrade.
improved modulation, less fading, less squeaky (more quiet)

Similar Products Used:

stock rotors