Yamaha YZ450F (2023)
Chain Size & Slack
The Yamaha YZ450F (2023) uses a 520 chain with 50–60 mm slack.
Chain Size & Slack
Chain size520
Chain links114
Chain slack50–60 mmMeasured with the machine on a maintenance stand, chain unloaded
Chain 15-link limit242.9 mm
Drive chain slack (limit)60 mmUpper end of the maintenance-stand slack range — see also chain15LinkLimit for the wear-elongation measurement Yamaha actually specifies a hard limit for
FAQ
What chain size is on the Yamaha YZ450F (2023)?
520.
What is the specified chain slack?
50–60 mm