15 Essential Triathlon Tools

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1. Chain Checker

As cassettes have gone from eight speeds to nine, 10 and 11, chains and cogsets have become increasingly expensive. So improperly judging wear on these parts carries painful financial consequences.

With the likes of Park Tool's CC-2 (£24.99, madison.co.uk), you can accurately gauge your chain's life in real terms so you don't toss one that still has miles to go - and you don't keep using one so worn that it starts eating your cassette cogs alive.

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