Can anyone tell me whether this belly bar will fit the Versa GT?: [[BJ belly bar http://www.amazon.co.uk/Baby-Jogger-Adjustable-Belly-Single/dp/B00155WJ4E?SubscriptionId=AKIAJ7T5BOVUVRD2EFYQ&tag=camelalerts-21&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B00155WJ4E]] Thanks very much :)