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@Brommers
Right, another question for all the internet buyers out there. It's nearly time to buy the new cranks for my P5 build (Rotor 3D+ with Power2Max) but I'm prevaricating over what length to get. I'm 180cm tall, with a relatively short 80cm inseam length. Most of my road bikes have 172.5mm cranks, although some have 170mm (can't remember which, and I can't tell the difference anyway), my existing TT bike has 170mm, my track bikes have 170mm, and my MTBs have 175mm.
Here's the question - 170mm or 165mm cranks for the P5. 170mm is tried and tested, but if I'm getting new cranks I'm tempted to try 165s. Internet bike fit a-go-go...