Thanks

Thanks

Thanks

HBX 16889a Pro uses this exact same pinion. The original HBX (non-pro), Linxtech and SG 16889 series also uses a 14t pinion but it's designed for 2mm shaft motors. Only the HBX Pro version uses this pinion with a 3.175 hole for the 28XX series motors.

HBX 16889a Pro uses this exact same pinion. The original HBX (non-pro), Linxtech and SG 16889 series also uses a 14t pinion but it's designed for 2mm shaft motors. Only the HBX Pro version uses this pinion with a 3.175 hole for the 28XX series motors.

HBX 16889a Pro uses this exact same pinion. The original HBX (non-pro), Linxtech and SG 16889 series also uses a 14t pinion but it's designed for 2mm shaft motors. Only the HBX Pro version uses this pinion with a 3.175 hole for the 28XX series motors.

perfect fit, I know the listing does NOT tell us what the center bore is, but it is for a 3.175 shaft and they call it a pitch of .68, it will work with all Cross tranny's and also HG tranny's .

perfect fit, I know the listing does NOT tell us what the center bore is, but it is for a 3.175 shaft and they call it a pitch of .68, it will work with all Cross tranny's and also HG tranny's .

perfect fit, I know the listing does NOT tell us what the center bore is, but it is for a 3.175 shaft and they call it a pitch of .68, it will work with all Cross tranny's and also HG tranny's .