Topic: Accidental Shift into 1st

[Chilli42]

I ride a Ducati Scrambler and went ride today and accidentally shifted down from 2nd to 1st at a junction, I thought I was in 3rd. I was doing about 25mph. It actually went in really smoothly which surprised me, not even a clunk! So I tried it again (dumb) and kinda got a not nice clunk this time similar to what you get at a standstill when you engage 1st, but a bit more pronounced, louder and not as clean. Like a "K-Clunk".

What causes the clunk sometimes and not others, and would it cause any damage shifting into 1st at that speed to the trans or gears?


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[eigenvector]

No damage.  The worse that would happen is the clutch would slip, or you'd get tossed over the bars from the compression braking.

As for the clunking - if I'm not mistaken that's the shift drum forcing the gears together even though they're stopped.  The bike should jump a touch as it happens - unless you have a lot of slop in the transmission.  My BMW does it all the time at stoplights.