OVERDOSE Drilled HD Idler Gear (For GALM, XEX Series) - OD2742

Previous HD idler gears have high strength and excellent wear resistance, but their weight makes sometimes have dissatisfaction with the throttle response. This new gears reduce the weight from 11.5g to 9.2g with drilled hole on side surface and reduce gear width design to the minimum durability necessary. It is improved throttle response and drift controllability and traction performance. And the quenching process has been improved gear. Fit for GALM chassis with OD2589 necessary.