bro the original swingarm of bike was extended by welding but strong enough so it will not show any signs of crack, another chain was added with the previous one to get it long enough. The rear mudguard is made up of fiber. Chain cover is cutted so it doesnt bother the chain. The modification doesnt involve any difficult thing which can not be done. but it needs time.
Due to extended swingarm the bike tails alot on little throttle as u've kept gs500 so you know how gs tails even when its genuine plus when it is extended you can imagine. handling is much redcued due to extension and also because of the clip-on hanlde bars.