Downshifting should be done cautiously.
Never downshift more than two gears at once. Your rpm will shoot up and it will effect your clutch.
When you do want to downshift- always blip the throttle a bit, to match the rpms.
So- 5th gear>clutch in>blip race>release clutch and you have matched the rpm. No extra stress on clutch, axle and engine.
It's better to brake - less costlier.
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