Amazon.com : LERWAY Bike Stem Riser Extender MTB Handlebar Stem Adapter with Hex Key for 1-1/8" 28.6mm Fork Aluminum Black : Bike Stems And Parts : Sports & Outdoors
BBB BHP-20/21 Stem Extender | Stems | wiggle.com
steerer tube extension on my cycletruck fork | Garth L'Esperance | Flickr
Hope Head Doctor Into Steerer Tube Extender - YouTube
20mm Steering Tube Extender Adapter For Straight Fork 1-1/8'' Or Taper – Dcbikes
Bicycle Tapered Steerer Tube Front Fork Extension Head Tube Aluminum Alloy - Walmart.com