How To Adjust Rear Derailleur Without Barrel Adjuster. It goes mid-cable and doesnt attach to the frame. I bought one and have just gone to install it.

Look where the cable housing enters the rear of the derailleur. Turning the adjuster anticlockwise increases tension on the cable bringing the derailleur closer to the wheel. Delayed shift or no shift at all.
Im trying to adjust my SRAM X-7 rear derailleur but it appears that it has no adjusting barrel for adjusting cable tension.
If the derailleurs inner adjusting screw is correctly adjusted the chain will only. Should I ride with derailleur clutch on or off. This rule will help you remember which way to turn it. Always turn it only a half turn shift multiple times to check the adjustment and repeat as needed to cure all.

