Light weight rotors
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What are some light weight rotors? Is there really a difference in rotors? I have been told I need ice tech rotors, but I have read that they don't make a difference. If they really aren't any better, I want the lightest rotors I can find. Any advice or recommendations would be greatly appreciated
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Avoid any carbon or aluminum-ceramic stuff like the plague.
While they may be mature tech in other sports (F1, MotoGP), those concepts are poorly executed for MTBs right now.
Steel is real, in this case.
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While they may be mature tech in other sports (F1, MotoGP), those concepts are poorly executed for MTBs right now.
Steel is real, in this case.
Sent from my XT1585 using Tapatalk
KCNC Razor is a good value in a light steel rotor:
http://www.kcnc.com.tw/products.php?fun ... _parent=19
Personally I use aluminum-based rotors for road, but for mtb I like Carbon-Ti, which may be the lightest quality steel.
There are prior year threads on this very topic as well.
http://www.kcnc.com.tw/products.php?fun ... _parent=19
Personally I use aluminum-based rotors for road, but for mtb I like Carbon-Ti, which may be the lightest quality steel.
There are prior year threads on this very topic as well.
There are a number of options depending on usage (?).
Ice tech works very well for what its designed for (keeping heat at bay during long protracted braking) but for XC and light to moderate trail riding it's simply not needed.
KCNC or Ashima are good lightweight options, a little bit heavier but a lot cheaper there is alligator or for a small weight increase but a full braking surface there is A2Z.
I use an A2Z on the front and an alligator on the rear and it gives the combination of light weight and decent braking on harsher terrain that suites me.
Ice tech works very well for what its designed for (keeping heat at bay during long protracted braking) but for XC and light to moderate trail riding it's simply not needed.
KCNC or Ashima are good lightweight options, a little bit heavier but a lot cheaper there is alligator or for a small weight increase but a full braking surface there is A2Z.
I use an A2Z on the front and an alligator on the rear and it gives the combination of light weight and decent braking on harsher terrain that suites me.
Impoverished weight weenie wanna-be!
Budget 26" HT build viewtopic.php?f=10&t=110956
Budget 26" HT build viewtopic.php?f=10&t=110956
Good selection here: http://www.xcracer.com/shop/index.php?tag=12
Personally use the Quaxar ones, which are the same as Ashima.
Personally use the Quaxar ones, which are the same as Ashima.
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I'm using Ashima Ai2 66gram rotors from 2 years,and they are very good. The "Ashima look" has few brands.
I found 2 drawbacks with the really light rotors, those that have more air than metal in the braking surface:
1. they do not stop as well and can cause juddering at the front
2. they wear pads quickly
The best all round rotor (good stopping ability, lightweight and price) is Hope SAW (not the latest version as these have become heavier), otherwise check out the Deckas rotor which is much cheaper, not much heavier but not quite as good for stopping as the Hope.
1. they do not stop as well and can cause juddering at the front
2. they wear pads quickly
The best all round rotor (good stopping ability, lightweight and price) is Hope SAW (not the latest version as these have become heavier), otherwise check out the Deckas rotor which is much cheaper, not much heavier but not quite as good for stopping as the Hope.
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mattr wrote:If you have a pro mechanic with a pro schedule and a pro level of ability, you'll be fine.
Otherwise, i'd think long and hard about that!
Maybe try 3 steel and 3 Al or 3 Ti and 3 Al.
Second on the 3 Ti 3 Al bolts. It may be better to get the torque on 6 Ti bolts and after the rotor is mounted replace a Ti bolt with Aluminum one at a time, to get to the 3 Ti and 3 Al more reliably.
3 disc brake bolts??
Think about what could happen if the rotor parts company with the hub when you desperately need to stop to avoid the oncoming car/ditch/tree vs the weight saving.
IMO not worth the risk; you'll probably pick up more weight in mud on the tyres than the weight saved by ditching 3 bolts.
Think about what could happen if the rotor parts company with the hub when you desperately need to stop to avoid the oncoming car/ditch/tree vs the weight saving.
IMO not worth the risk; you'll probably pick up more weight in mud on the tyres than the weight saved by ditching 3 bolts.
I ran the KCNC Razors and Quaxar from mt zoom, both very light, but as has been mentioned they just didn't have the bite. I'm now running XTR M9000 race with the 160mm ice techs and the feel is much better (though obviously a weight gain).
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