You have a habit, of curt, very condescending responses, which is a pretty neat trait that leads to me not desiring being involved in threads you post in. No skin off either of our butts... and neither of us are going to lose sleep over it... but certainly, it detracts from the whole...
I don't quite get it. Here in Laguna, our rides have climbs with grades in excess of 20% and many of them have 2.5KM long climbs with average grades that are 17%. From my experience, there is no way that you would ever want/need a 28/51 or 30/51 to accomplish these climbs. The motor puts out...
why would you want less teeth to the chainring? I already have a hard time using the 32t with a 51t rear cog as it is. I have a much faster cadence then most, and the 32/51 combo would need a cadence that can exceed 110-115 in order to maximize it.
I think an alloy pre-load cap creates more problems then it solves. The allow is malleable and is going to fare better not backing out then an allow cap would. In addition, as you torque it, it will deform, and thus deform the threads and again, stop it from coming out. Don't assume alloy is...