After assembling your bike you may realize, the gear system of your Strive AL 6.0 Race isn't working perfectly.

One common problem is the displacement of the two sprockets in the rear end as you can see in the picture, causing the chain to run aslope instead of straight. To fix this, use the two screw nuts of the rear derailleur.

Flip your bike upside down for a better workflow.

The left screw nut is to move the big sprocket, the right one for the small sprocket. Use an allen key until both are aligned.