For special cases where you need more clearance, as e.g. the chain rubs against the chain case or chainstays, Rohloff offers this slim splined carrier adapter to move the sprocket inwards. This optimizes the spacing of the sprocket for a 55 mm chainline.
• Suitable for Rohloff 15-21 tooth sprockets (not for 13 and 14-tooth sprockets)
Manufacturer’s ref.: 8540s