DT Swiss DT Swiss Rear Axle Conversion Kit - 12 mm Thru axle, Press fit, Shimano ROAD, Black - Cascade Bikes | Tigard, OR
Lixada Conversion Shaft 12 mm to 9 mm QR Adapter MTB Bike Thru Axis Hub Quick Release 100/135/142/148 mm Adapter Hub Front Wheel Bicycle (Black, 100 mm) : Amazon.co.uk: Sports & Outdoors
Rear Thru-Axle conversion? | Mountain Bike Reviews Forum