The all-new Shimano Dura-Ace R9100 might be delivering a little too late for the pros to race it at Tour Down Under, but we found a set of production mechanical parts to throw on the scale while at the USA Cycling Cyclocross National Championships. The cranks shown have 172.5mm arms and a 52/36 chainring setup to come in at 629g. Roll on down for the rest of the group…
Mechanical shifter levers come in at 370g for the pair.
Rim brakes were 160g and 161g.
Front derailleur was 70g and rear was 159g.
The 11-30 cassette, which is the largest they offer, weighed in at 213g with a plastic cylinder holding it together (which was intentionally made non-removable without damaging it), so subtract maybe 10g at most. The threaded bottom bracket came in at 64g.
Follow these links for the full tech story from our launch coverage for the group, plus pricing, close up looks at the power meter crankset and new wheels. Stay tuned for our first ride impressions of the new Di2 version with rim and disc brakes, plus the power meter later this month!