Front Travel: rigid or 80-120mm suspension fork

Here's what Singular say about this frame...

Since the release of the Swift people have asked us about a 26" wheeled version. Despite the evident enthusiasm for 29" wheels, I've never been against the idea. There is a practical limit to how small a suspension capable 29" wheel bike can be made - that being the reason we've only ever offered the Swift down to a medium size. The Hummingbird makes the virtues of a Singular frameset available to people requiring a smaller bike.

There is a twist however. As what we believe is an industry first, the Hummingbird can also use a 29" front wheel when using the specific rigid front fork. This fork has a large amount of rake, keeping the wheel away from the smaller riders toes, and keeping the handling sharp with the bigger wheel. The frame will also work with a 26" front wheel and suspension fork of between 80mm and 120mm of travel.