Triumph Scrambler 400 X
New-chain stretch needs an early adjustment
Chain/SprocketLow
Sharing the 398cc single with the Speed 400, Scrambler owners report chain slack growing quickly in the first 1,000-3,000 km before it settles.
500-3,000 km~3,000 km checkpoint
Watch for: Slack growing in the first weeks, light lash on throttle transitions