Front sprocket not centered after install (Stark Varg EX) — normal or issue?

Julo EX · Sunday at 9:57 AM

Hey guys,
I swapped the stock 12T front sprocket on my Stark Varg EX for a 14T. The install went smoothly — everything seemed fine, no weird noises or chain issues. I did a short test ride and it felt perfect.

But the next day, when I looked closely, I noticed the sprocket doesn’t sit exactly in the middle — it’s slightly offset.

Is that normal when upgrading to a bigger sprocket, or should I take it off and reinstall it perfectly centered?

Thanks in advance for any advice!

Julo EX · Sunday at 9:58 AM

Julo EX · Sunday at 9:59 AM

some more images

Bodo · Sunday at 10:27 AM

From the pictures, it's only visible that the washer is significantly off centre. Is it the correct one? When the inner bore of the washer is too big, it could move out of centre just like it does in the pictures.

It should be mechanically impossible to not center the sprocket on the shaft:

Julo EX · Sunday at 12:34 PM

Bodo said:
From the pictures, it's only visible that the washer is significantly off centre. Is it the correct one? When the inner bore of the washer is too big, it could move out of centre just like it does in the pictures.

It should be mechanically impossible to not center the sprocket on the shaft:
View attachment 15059

I used the same washer, is there another Washer for bigger sprocket? Should I remove it and try to have It really centered?

Bodo · Sunday at 3:20 PM

Yes, opening it will reveal why it looks so odd. Stark's instruction video says to tighten it with 80Nm

(starts at 11:11)

AL_V · Sunday at 4:21 PM

Julo EX said:
I used the same washer, is there another Washer for bigger sprocket? Should I remove it and try to have It really centered?

It's fine, send it!

4Corners · Sunday at 8:47 PM

How did you guys deal with the Loctite on the c/s bolt. That was the scariest bolt I've ever removed from a motorcycle and I did use heat.

Erwin P · Monday at 3:34 AM

I just used force, came right off.

You should just centre the ring, it's not that hard.
Leave it like this and i'm pretty sure it will vibrate loose over time.

AL_V · Monday at 4:45 AM

Julo EX said:
View attachment 15058some more images

After looking at this picture, it looks like you may have the washer on top of the spline (at the top), instead of "around" it.
So yes, loosen it up and center the washer, and re-torque.

Front sprocket not centered after install (Stark Varg EX) — normal or issue?

Julo EX

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