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PEM Racing quick-change gear ratio charts provide a lookup table for various spur gear combinations and their corresponding final drive ratios. The charts allow for quick and easy adjustments of the gear ratio by simply swapping or flipping spur gears, rather than removing the entire rear end to change the ring and pinion. These large, 19 x 25 in. reference posters are laminated and easy-to-read.
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$9.99
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