Better to stab it with a pointy thing like a pin/scalpel. Peeling back risks stretching the vinyl (which it will if it's good vinyl) or finger grease/dirt stopping it from sticking down again properly.
@O'Shane started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Better to stab it with a pointy thing like a pin/scalpel. Peeling back risks stretching the vinyl (which it will if it's good vinyl) or finger grease/dirt stopping it from sticking down again properly.