Yamaha YZ450F (2025)

Chain Size & Slack

The Yamaha YZ450F (2025) uses a 520 chain with 50–60 mm slack.

Chain Size & Slack

Chain size520

Chain links114

Chain slack50–60 mmMeasured with the bike on a maintenance stand

What chain size is on the Yamaha YZ450F (2025)?

520.

What is the specified chain slack?

50–60 mm

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