Upgrade your GMADE R1 ROCK BUGGY with the GPM GM237SAA main drive shafts, built from steel and 6061 T aluminum to balance toughness with reduced weight. The front shafts are adjustable from 122mm to 132mm and the rear shafts from 105mm to 115mm to help achieve correct drivetrain geometry. A steel wire ring secures the screws to minimise the chance of loosening under hard use. The reduced rotating mass from the aluminium sections can improve battery runtime compared with fully steel shafts.
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