Amazon.com : BIKEHAND Bike Wheel Truing Stand Thru Axle Adapter - Great Adapter for All 12mm, 15mm, 20mm, 24mm Through Axles - Compatible with Park Tool Bicycle Truing Stand : Sports & Outdoors
HUB AXLE CONVERSION KITS-15mm/20mm dropout to 3/8″(10mm) bolt – Profile Racing
Forkmods 20mm to 15mm axle kit | BikePerfect
Bike Wheel Building - Bike Spoke Tool - TOOL WHEEL TRUING STAND PARK TS-TA THRU AXLE ADAPTER 12/15/20mm