Steerer Extender Vendor_Nathan and the rider can select

and the rider can select the ideal gear whether pedaling quickly or at a full stop

R9100 and Ultegra 6870/6770 equipped bicycles

All Di2 components on the bicycle require the same firmware version

Includes 3 x 2

Bar Clamp Diameter (mm): 31

Steerer Extender Vendor_Nathan and the rider can selectDimension Steerer Extender adds 2 to 3 1 4" height to steerer. Extender clamps to steerer; stem clamps to extender Adds 2 to 3 1 4 inch height to threadless steerer Includes top cap and long bolt 40mm of threadless steerer is required for proper installation Do not stack steerer extenders; no more than one steerer extender recommended per bike WARNING: Dimension Steerer Extender is not recommended for use on forks with carbon fiber steerers