1x 290mm Aluminum Bicycle Tapered Steerer Tube Front Fork Extension Head Tube - Walmart.com
Steerer Tube Too Short? - YouTube
Titanium Head Tube Extension — TI CYCLES FABRICATION
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