Originally Posted by twocicle

I ran the 203mm ICE tech rotor for a year or so with a rear TRP Spyre caliper and no problems for us (mostly used semi-metalic pads). Once moving to the full front/rear hydro brakes we went with 180mm RT99 Freeza rotors. For extreme descents, the rotors did just fine in Mallorca this last April. There are some pretty serious pitches (see post #45) with super tight switchbacks. No issues with the rotors. Some of that success may be due to using the r785/XT calipers and only the semi-metallic pads. There was heat test done by a guy in Colorado that showed the semi-metallic pads helped to keep the rotor temp lower. I think I posted a link to that info somewhere in this forum, so some hard data is there for you to consider. The 2017 Dura Ace 160mm rotor looks interesting for our front brake and that size should balance nicely with the rear 180mm Freeza.

Regarding the S-Works 130bcd spiders for the timing side, I took a chance and bought them off eBay from a shop in Quebec, Canada. Seller has some 14k positive ratings. These seem legit and came with the correct chainring bolts in what looks to be legit packaging. Also got a S-Works SL seatpost in the same order. Always leery of bogus knockoffs, but I couldn't resist even though my LBS offers a good team discount on Specialized gear. AFAIK, these road spiders are still in production. I think Andy was referring to the mtn spider for his driveside.