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Discussion Starter · #1 ·
Stan's Aluminum Rotor's have a 170 Lbs. weight limit warning on their aluminum rotors, i'm just curious why?

I live in flat as a pancake Houston and anywhere we ride in Texas or surrounding areas don't have any long descents i've ran magura martas for 4 years now and never suffered any brake fade on anything so i don't ever see them getting heated up enough to warp from the added strain of slowing down some 185 Lb rider - Vs. - a 160 Lb rider.

any one have some insight on this?

link to stan's site
 

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What are your hills like?

How much elevation drop & how long are the worst of your hills? What are the consequences if you miss your stop? I weigh 165 or so fully loaded & I had problems stopping on a paved road about 13% grade for 0.75 miles with the old version of the rotors & Formula B4SL brakes (160/140 mm). Mine were coated, but I guess the new coating is improved. At 185 pounds, I bet you'd have to be careful sometimes unless your terrain is really really flat. If you try them, be sure to post the results here! I have yet to see any reviews of the latest version rotors. Not needing special pads is a nice plus if they work.

PS. Yukon Cornelius is really cool.
 

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I have the latest version rotors. Can't really tell much difference from the Marta rotors. But i weigh 165 lbs. I can lock the rear wheel on payment with no problem. And probably the front if i want to suffer the consequences.:) Do not know if heat is a problem because i am not a big brake user.
 

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I could lock up my wheels with the old rotors too. They felt fine until I had to stop on a longer descent - not the longest or steepest around by any means either. They also squealed like crazy when wet. What are your hills like? Have you got them wet yet?
 

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Discussion Starter · #8 ·
i live in HOUSTON, TEXAS it's on the gulf coast and is F L A T these rotors would be going on my XC race bike and 99.9% of the courses we have here in Texas are more or less flat the ones we do have with climbing are broken up on the descents so no long extended descents i never had issues with my martas on my titus racer x even in wet an muddy events.

i am doing the www.ouachita-challenge.com race this march so i don't know what the womble trail has to offer as far as descents go but other than that the terrain we ride most of the time is flat fast and tight technical.

i just wanted to know that if i got these rotors I'd be able to stop and not just grab a handful of brake and over shoot a corner.
 

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I'm 185lbs - and I reckon in a flat area you'll be fine with the Stans rotors. I personally wouldn't use them around here- because although it's flat our XC courses seem to have quiet a few longer descents and I think they would heat up too much with me on them.

However I would have no hesitation using them on a flat course- such as the "flat track" near my home. The warning is there just to protect both Stan’s and the Rider in my opinion as they cant guarantee the rotors will perform at their best with a rider over that weight.
 

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When wet, braking was significantly worse. But do not remember how my old rotors performed when wet. I ride in the SE and lots of hills and mountains. Do not remember any fade on the brakes, but as mentioned, i am not an aggressive brake user.
 
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