Yamaha's hugely revamped 2022 YZ125 two-stroke goes head-to-head against a 2021 YZ125 to see how different the new model is to ride.
Former British 125 champ Dave Willet compares the bone-stock 2022 model with a lightly modified and well set-up '21 and finds a simple change of rear sprocket to suit the track conditions can work wonders.
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