I'm getting an Ibis Mojo SL for general cross-country/xc purposes and racing. I race the Winter Park Mountain Bike Series and the Breckenridge 50 and other such events. I want the bike to be as light as possible but not stupid light -- I want to be able to ride it all day, day after day without having to bleed brakes or other constant maintenance.
It comes with Avid Elixer R brakes which weigh 375g and seem to have a decent reputation among mtbr contributors. I could just stick with those. Or I could go for something lighter -- it would be great to lose 100g (1/4 pound).
After searching the forums and reviews and reading some magazines, it seems like the best choices would be Magura Marta SL, Avid Ultimates, Hayes Gram, or Formula R1s.
The reviews of the Avid Ultimates are pretty mixed and the Avid site says they are for light-duty xc use which causes a little concern. Check out the little avatar things on this web page: http://sram.com/_media/pdf/en/avid/s...isc_Brakes.pdf I'm not doing downhill or freeride or anything heavy duty. I weigh 180 pounds and most descents are a max of 15 minutes. Would the Ultimates hold up to that? If you've been to Moab, I don't do anything more extreme than descending Porcupine Rim or Amassaback. In fact, those are unusually long descents for me -- don't do that on my normal riding/racing.
The Formula R1s are getting rather mixed reviews as well. In particular, there is concern they are "stupid light" -- rotor starts out very thin and has very low wear tolerance so will have to be replaced often, the screws have to have Torqz heads to no strip because they've been engineered with so little metal. Am I reading too much into those comments? Will R1s hold up to Porcupine/Amassaback descents? They sure are light!
Not much discussion of the Hayes Stroker Grams. My current Hayes HFC9s have been decent brakes.
The Magura Marta SLs seem to have a strong reputation.
I'm sponsored by a shop that gives great discounts on many products -- Avid and Formula are on the list. Magura is not. I had made up my mind to get the Marta SLs until I found out I'd have to pay pretty much full retail for the brakes now and pads forever. That caused me to pause. But maybe I should just bite that bullet and get the Marta SLs.
Y'alls thoughts about the best (durable, lightweight [in that order]) brake? Or should I just keep the Avid Elixer Rs? I haven't even ridden with them yet. It's just that I'd like the bike to be as light as possible.
Thanks for your input!
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