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2020 Hisun 500 - grinding on steep decline


jim74

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Anybody ever have grinding sounds while navigating down steep hills/declines?

I experienced some grinding sound the other day - I haven't had a repeat but wanted to check if there is anything common about steep declines with hisun that I might want to be aware of. Any best practices for navigating these down steep hills. Thanks.

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It could be caused(whatever it was), by the fact the bike was facing downhill/on an angle(causing something to swing against an axle say), or it might be caused by the de-acceleration causing noise in the gears or diff on over-run. I presume you did have the throttle closed ?

You could try revving it out in a low gear and then throttling off suddenly. If it's in the gears it might show up then, whereas if it's something swinging it is less likely to.

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And I had an afterthought... but it's a bit obvious.. you don't think it could be the brakes grinding.. worn out brake pads or shoes make a grinding noise.. especially with prolong application when the metal gets warmed up.. even though they are almost silent during intermittent and light use.

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