The hollow forged alloy crank (after flirting with carbon, Shimano Dura-Ace cranks are now fully alloy again) is matched up with a hollow outer chainring to produce a crankset that’s a tad (15g) lighter than before. It’s also said to be 20% stiffer although, in use, you’ll do well to notice. Even if you’re a big rider pushing a big gear, the difference is tiny – but, hey, everything helps so we’re not going to argue. If you really want to get out your anorak and magnifying glass, you can take a look at the slightly altered tooth shape which is designed to give better contact and power transfer. The crankset comes in a whole range of chainring size options including, for the first time, a 50-34T compact design for a lower set of gear ratios.
Read the component reviews here:
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Dave is a founding father of road.cc and responsible for kicking the server when it breaks. In a previous life he was a graphic designer but he's also a three-time Mountain Bike Bog Snorkelling world champion, and remains unbeaten through the bog. Dave rides all sorts of bikes but tends to prefer metal ones. He's getting old is why.