Swim Goggles Need it Test them in the pool first so they do not leak or fog. Swimwear you can actually swim in Need it Swim cap Optional Open-water races almost always provide one. Wetsuit Optional Helps in cold water for warmth + calming buoyancy. Rent before you buy.
Bike A working bike (any type is fine) Need it Road, hybrid, mountain, or borrowed. Get it tuned if it has sat for years. A helmet that fits Need it Non-negotiable. You cannot race without one, and it must be buckled before you touch the bike. Spare tube + pump Smart to have Learn to use it before race day so a flat does not end your race.
Run Comfortable running shoes that fit Need it Not race-specific, just not worn out. A shop fitting helps avoid blisters.
Transition + extras A small towel to stand on Smart to have Socks Optional Many do short races without; use what you have practiced. Elastic race belt for your number Optional Cheap and handy, but optional. Water bottle for the bike Smart to have
That is genuinely the whole starter kit. The training is what gets you to the finish line, not the gear.
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