Why low rider Harley got discontinued, but it’s available at discount 2020 model.. should I wait for new launch in July 2021 & als will I get a support on discontinued bike from Harley..?

As of now, there is no information available from the brand's end regarding the re-launch of the Harley Davidson Low Rider. Moreover, if you are getting any good deal on the old model then you may go for it, or you can wait for the launch of the new Harley Davidson Low Rider.