Originally Posted by
romperrr
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I've also read that drilling aluminum bars is a big no-no, perhaps I'm off here. Any concerns on your end?
Here's to many more miles!
Oh-yea... I was concerned given my size!
I have an older friend named Clay that was a machinist and has the most acutely perceptive mechanical mind I've encountered and he put his 'magic' blessing on going ahead and drilling the new bars (besides Herse did this too - though I have no idea of the old bars strength). The holes are carefully chamfered to avoid a stress riser. These bars have at least a thousand miles on them now both commuting and several Brevets.