DYNAMITE:DYNG4810 Pinion Gear Set 17T. 18T, 19T, 20T, 21T x 48P by DYNAMITE $17.99 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Dynamite 48P Pinion Gear Set. This set includes 17, 18, 19, 20 and 21 tooth pinion gears, allowing you to fine tune your gear ratio for a wide variety of conditions.
