Grand Prix 125
Main Motorcycle: Triumph Daytona 900
Join Date: Sep 2016
Location: Swindon, UK
Other Motorcycle: I wish
Extra Motorcycle: I really wish
Err, stop using it! That steel has yielded and deformed. With the same load on there it could easily fail and drop the bike on top of you.
I would return it to the manufacturer as not fit for purpose and demand a refund. If it is rated at 500kg, then it should safely hold 500kg. If sold as lifting equipment they have a legal duty to test and certify it.
Seems strange that the support bar would just sit on the top edge of the side plates. That is a poor design if assembled correctly. Also, that bar is clearly not strong enough forthe forces acting on it.
The bar could be respecified to be stronger, like 4140 or similar but you'd need to know what the original material strength is, and the loads involved to be sure you are making the design safe... But this is the manufacturer's responsibility!