Yes, you can replace it. Although you might have to goto another brands system, and a little hacking. Personally, every trailer I have I use the Burley Flex Connector system (http://www.amazon.com/Burley-Design-Connector-Round-Black/dp/B001GSQXUG/ref=sr_1_1?ie=UTF8&qid=1438004399&sr=8-1&keywords=burley+flex+connector) and (http://www.amazon.com/Burley-Design-Forged-Standard-Trailer/dp/B00VSOQN8K/ref=sr_1_3?ie=UTF8&qid=1438004399&sr=8-3&keywords=burley+flex+connector). What ever you go with though you may have to get a few other parts for it to all work. In the Burley case, the hitch for your bike. Here is the similar piece for the Burley flex connector system:

Yes, you can replace it. Although you might have to goto another brands system, and a little hacking.

Personally, every trailer I have I use the Burley Flex Connector system (http://www.amazon.com/Burley-Design-Connector-Round-Black/dp/B001GSQXUG/ref=sr_1_1?ie=UTF8&qid=1438004399&sr=8-1&keywords=burley+flex+connector). What ever you go with though you may have to get a few other parts for it to all work. In the Burley case, the hitch for your bike (http://www.amazon.com/Burley-Design-Forged-Standard-Trailer/dp/B00VSOQN8K/ref=sr_1_3?ie=UTF8&qid=1438004399&sr=8-3&keywords=burley+flex+connector).

Here is the similar piece for the Burley flex connector system, and how it works on my bike: