Wltoys 12428 Speed spur gears 58 56

thingiverse

Final drive reduction spurs on the wltoys 12428 across for more speed. It's possible ratios are 56T / 19T, 20T pinion (21? Not tested) 58T / 17T,18T,19T pinion Initial made to run 10th scale rally wheels on the 12428 to counter for their smaller diameter. But it helps with the 12428 tipping over due high cg from the battery and spare wheel. Easy anvalaible option to get a mod 0.8 19T is from a tamiya dt-03. Part TA-54629 You will need a adjustable slider mount for 540 motor to use these. They all over ebay. It is a possibility the housing and center brace need to be filed down a bit for more clearance. Please check your motor temps when running a 56T setup. Note: Wltoys seems to like glueing their bearing to the spur. Best to add 8 x 12 x 3,5 bearings to shopping list. I found a suitable spare being 2 for the 1;16 e revo. Part Traxxas 7020. A speedrun using the 56T is here https://www.youtube.com/watch?v=9cwlhFVcT7Q CC Attribution https://cults3d.com/en/users/cedtat/ for the shaft design.