Thread: Hope RX4 Discs Not Warranted For Tandem Use
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Old 05-26-22 | 06:16 PM
  #42  
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merlinextraligh
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Bikes: Willier Zero 7; Merlin Extralight; Calfee Dragonfly tandem, Calfee Adventure tandem; Cervelo P2; Motebecane Ti Fly 29er; Motebecanne Phantom Cross; Schwinn Paramount Track bike

Originally Posted by longpete
Xt +xtr ice tech rotors are not up for tandem mountain use. The alu between the rotor melts at high temperatures. Seen myself on halfbikes on 2000 altimeter single track descent. The heavier the rotors the better.
Even 220 rotors with 4 pot brakes get too hot on singletrack downhills if you do not stop to let the brakes cool down. Rotors bent, pads glaze, hoses can melt. I use an extra magura hs33 in the rear with andra vbrake rim. This helps to dissipate heat better.
Can’t really comment on very technical single track. I can say in our experience they’ve worked well for fast steep road descents, and some relatively easy single track.

I think the answer for any particular team is going to depend on a number of factors, not the least of which is how fast you descend.
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