I see some wear on the chainring tips in the photos. Have you ridden them yet? What are you 1st impressions of them? I'm about to pull the trigger on a set for my 2010 Yeti ASR 5 carbon to replace the Specialized cranks.I have a 73mm bb but the e13 bb comes with spacers for a 68mm. I used 1 2.5mm spacer on the driveside. Install was super easy and straight forward.