So, what’s the issue when the rear wheel doesn’t stay locked when you pick up the bike, even though the seat post is fully retracted?
retracted meaning seatpost dropped all the way into the frame? has your stop disc fallen off?
take some photos!
The plastic disc that the rear shock rubber is mounted on and which the rear triangle latch engages with may have rotated so it doesn't engage any more.
Rotate your suspension block, there's a notch there of which the hook latches on.
@h2o started
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So, what’s the issue when the rear wheel doesn’t stay locked when you pick up the bike, even though the seat post is fully retracted?