The Sled uses a Syntace 148 X12 dropout and axle.
Below you will find the complete DMR Sled dropout and axle system as each part for you to purchase separately.
All are described within the Spec tab.
Syntace X-12 Type 1 Standard Rear Derailleur Hanger.
Weight 10 grams
Syntace X-12 Hanger Screw Type 1 28.5mm
Weight 3 grams
Syntace X-12 Axle 148mm (Boost (without thread insert)
Weight 42 grams
Syntace X-12 Threaded Insert Zero Offset
Weight 8 grams