The actual indent design DOES contribute greatly & when you combine those super thick cranks with that 24mm spindle you get a massively strong crank setup. I am pretty hard on my cranks, and although i am constantly scratching the right crank, they remain so perfect. LHD & RHD compatible, which, with my LHD wheels, i was able to get my sprocket & chain away from the danger zone.
I can't even say they are heavy!... FIT did an amazing job at keeping the weight down with the 24mm to the same weight of the 19mm version. These cranks are too good to come up with a bad, and I have been riding them for a good while.
If you are in need of some new cranks, or even if you are considering the upgrading of your 8 spline crankset to a 48 spline set, get these cranks. Fit offers them in a few different colors and these also come along with a mid bottom bracket kit, in other words, this crankset has everything you need for installation. .....just add a sprocket, throw the chain back on and your rollin....