Install the GPM GM237SAA main drive shafts on a GMADE R1 ROCK BUGGY to benefit from a mix of steel and 6061 T aluminium that targets strength and lower mass. The front pieces adjust from 122mm to 132mm and the rear pieces from 105mm to 115mm to ensure tidy alignment. A steel wire ring secures screws and prevents them loosening during heavy rock crawling. Using aluminium for part of the shaft reduces rotating mass and can improve battery run time compared to fully steel shafts.
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