Chain slap + rubbing frame

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dirtWarp

Grey Hound
Joined
Jul 10, 2009
Messages
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Location
Nederland
Bike
KTM 990 Adventure
Hi there.

On my 2017 501:
Chain slack adjusted according to manual at 55mm

With 14-48 sprockets, at 60km/h in 6th, it will cause enough chain slap that it seems to slightly chafe the inside of the frame.

Is this normal?

I have to intentionally only shift into 6th at +-70km/h



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