Long Life Steel Timing Pulleys for your Metroboard Motor. Available in the following sizes
17 tooth: default for use with 107 mm wheels
18 tooth: default for use with 97 mm wheels, increases top speed of 107 mm wheels by about 1 mph (but reduces torque and range)
19 tooth: increases top speed of 97 mm wheels by about 1 mph (but reduces torque and range)
20 tooth: default for use with 83 mm wheels
For use with 18 mm wide timing belts or smaller. Bore size is 10 mm. 5M-HTD Tooth Profile.
Note that in order to remove the Metroboard Motor Pulley, this Pulley Removal Tool is usually necessary.
Learn how to replace the Metroboard Motor Pulley here.