OEM quality jets at a fraction of the price, and unlike the other jets being sold online these actually fit and are correctly sized against OEM jets. These are only for the STOCK CARB! Not for aftermarket carbs.  These Main jets are all LARGER than the stock OEM Jet (78 or 80 Depending on year of KLX/DRZ110 you have). This kit has a wide tuning range with the jet selection that is included. 

Pilot Jet kit includes these sizes: 35,38,40,42,45

Main Jet Kit Includes these sizes: 82,85,87,90,92,95