Manufactured by injection molding (not casting or 3d printing) using self-lubricating material with highest accuracy Up for sale is a set of Gears for MOTOMETER brand speedometer/odometer US Spec (MPH) made for BMW E30 316 318 325 M3. This set consists of 4 gears ( OEM gear teeth numbers are 12, 44/16, 40/22 and 35/22) The gears have integrated spacers. NO ADDITIONAL SPACER NEEDED The gear set replicates the OEM design to ensure they never lose engagement. Installation instructions provided with the kit. The color of the gears may vary depending on availability. CHECK IF YOUR CAR HAS A MOTOMETER SPEEDOMETER BEFORE BUYING! 2 YEARS WARRANTY ON GEARS! It is brought to you by E30base The complete E30 instrument cluster service