This bike is a dream to ride. It tackles hills, gravel paths and city sidewalks equally well. Some of the components for the bike are a little low end and that is fine based on the overall cost for the bike. But, they work like a charm. The K660 might not have that many reviews online but those that it has are overwhelmingly positive. Many refer to the build quality being very good for this price range. Some raise concerns about the battery not arriving with the bike however this is by design. The battery is shipped separately and usually arrives shortly after the bike.
If you want a bike that folds away well for easy storage. A bike that can climb even tough off-road trails and hilly city roads. The K660 is a bike that can do those things and then some.
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