Stage 1 , Stage 2 , Stage 3 & new Stage 4* gears for higher boost on the Kawasaki Ninja H2,H2R, H2SXSE & ZH2 **Some of the stages are on Back order, see below, we don't have an ETA at the moment sorry**
Select model * Select overdrive ratio *
These Black Art Racing gears are the highest quality upgrade gears available for the Kawasaki Ninja H2, OEM quality & slightly tighter than OEM fit on the shaft so there is no chance of gears coming loose due to poor shaft fit.
Stage 1 is a single 24 tooth upper gear which gives a 5% overdrive from stock
Stage 2 is a 23 tooth lower gear & a 24 tooth upper gear which gives a 9% overdrive from stock
Stage 3 is a 23 tooth lower gear & a 23 tooth upper gear which gives 14% overdrive from stock
Stage 4 gears use a 24 tooth lower gear & a 23 tooth upper gear which gives 18% overdrive NEW!! ** Please note Stage 4 gears are designed to give more boost lower in the rev range although we recommend using the factory set engine rev limit of 13200rpm as this ratio pushes the supercharger to the maximum recommended impeller speed of 143000rpm if a higher engine rev limit is used you run the risk of possible supercharger failure**
Actual boost levels will vary from bike to bike depending on other modifications.
*Engine re-tuning is required when fitting ANY upgraded supercharger gears* Please note when selecting the upgrade option we only recommend upgrading single gears when you are using stock OEM gears or our gears, don't mix our gears with those from another manufacturer as some have been known to have incorrectly machined teeth which can abnormally wear the chain & cause premature chain failure. Prices shown are Australian dollars to view in a different currency please click the currency tab at the top of the page ^^
Check out our comparison to OEM video below