VEXpro-217-2454-Single-Speed-Double-Reduction-Gearbox-VEXpro-217-2454-P-The-same-old-two-stage-gearbox-teams-have-come-to-know-and-love-P-P-This-is-the-latest-and-greatest-update-to-the-basic-layout-John-V-Neun-amp-Paul-Copioli-created-for-the-original-Kit-Transmission-included-in-the-FRC-kit-of-parts-in-2005-P-P-After-years-of-iteration-this-gearbox-has-several-subtle-features-which-add-to-its-superior-performance-plastic-housings-aluminium-shafts-and-aluminium-gears-provide-fo