SELLING A SET OF DK RACE HUBS. 36 HOLE , FRONT AXLE IS 20mm HOLLOW AND THE REAR AXLE IS 15mm HOLLOW 16 TOOTH COG w/ SEALED CARTRIDGE BEARINGS. WILL NEED A 15mm AXLE BLOCK TO FIT FRAME YOU ARE USING. 2 REQUIRED FRONT WILL ONLY FIT FORK WITH 20MM DROP OUT. UNSURE OF WHAT MODEL THEY ARE. MOST LIKELY FROM 2010- LATER . IF YOU KNOW WHAT THEY ARE PLEASE LET ME KNOW SO I CAN ADD MODEL TO MY LISTING. THANKS SOLD AS IS NO RETURNS GENERALLY SHIPS 1-2 DAYS AFTER ORDER COMPLETION.