Upgrade set of helical gears with:Z1 - 18T, 1 pieceZ1 - 20T, 1 pieceZ3 - 17T, 1 piece
All helical gears are interchangeable with each other.
Gear ratios can be altered after your personal wish, see chart in Downloads.
Pinion gear Z3 for the layshaft.
Surface of the gears can be silver or black.
Please select desired amount teeth.
Click on the item for further information