the drop looks a bit long...are you sure the tiagras will even fit?
drilling the hole is fine, you usually drill the rear part to allow the allen bolt to sit through. the front hole doesn't normally need enlarging
@rpm started
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the drop looks a bit long...are you sure the tiagras will even fit?
drilling the hole is fine, you usually drill the rear part to allow the allen bolt to sit through. the front hole doesn't normally need enlarging