This is the SpeedTek RC 5mm to 1/8" Reducer Sleeve. This aluminum sleeve will allow you to use 5mm bore pinion gears on motors that have an 1/8" shaft.
SpeedTek RC 5mm To 3.17mm Aluminum Reducer Sleeve ( 5mm To 1/8")
SKU: SPV-0010-A
$4.43 Regular Price
$3.99Sale Price