I don't have knobbles, just a 28c wired Gatorskins, which probably weight as much as knobbles.
I'll retract my comment - 2.5kg is pretty reasonable.
@edscoble started
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I don't have knobbles, just a 28c wired Gatorskins, which probably weight as much as knobbles.
I'll retract my comment - 2.5kg is pretty reasonable.