Description:

Compatible with: Aprilia 2006-2013 RS50, 2006-2016 RX50, 2006-2016 SX50, 2012-2016 RS4 50, 2012-2016 RS4 50 Replica. Compatible with: Derbi 2006-2013 GPR 50 Nude, 2006-2013 GPR 50 Racing, 2006-2011 Senda R 50 X-Race, 2006-2016 Senda R 50 X-treme, 2006-2016 Senda SM 50 DRD Racing, 2006-2011 Senda SM 50 X-race,. Pitch: 420. Teeth: 11; Sprocket Material consists of SAE 1023 structural carbon steel. Hub Inner Diameter 14mm; Hub 2 (ID) 17mm; Mounting Hole (ID) 3.2mm; Distance Between Mounting Holes (ID) 23.5mm.