Maximum thickness 9 mm
I made some for 50mm motor, also can produce for 63mm motors. watch it. Fits caliber and caliber clone trucks https://www.avito.ru/andreevka/sport_i_otdyh/kronshteyn_dlya_motora_na_elektro_skeyt_2437359931 price is 40 USD with printed pulley cover for one piece Also got motor and pulleys