Yamaha MT-09 (2017–2020)
Chain Size & Slack
The Yamaha MT-09 (2017–2020) uses a 525 chain with 5–15 mm slack.
Chain Size & Slack
Chain size525
Chain links110
Chain slack5–15 mm
Chain 15-link limit239.3 mm
Drive chain slack (limit)15 mmEquals the standard adjustment range maximum — the manual does not define a separate over-limit threshold
FAQ
What chain size is on the Yamaha MT-09 (2017–2020)?
525.
What is the specified chain slack?
5–15 mm