Not classic but definitely sexy
Not exactly a ahead stem..
The Pepper is already narrow. I am talking about cutting wide (+600mm) riser bars down to 500 or less, which makes no sense at all.
But thanks for the advice, so it's 4 now
Will work great if you tend to ues copper tubes from your heating as handlebars!
doesn't the ID shrink and OD expand?
Nope, both ID and OD expand. Imagine the atoms next to each other forming the innermost layer of the ring. If the distance between each two atoms goes up due to heat, the ID naturally increases, too.
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Not classic but definitely sexy