c.p.odom said:
Sure old school BMX is 110mm but single speed spacing has been 120mm since before the first BMX'er was ever built. This seems a more versatile width, it is easier to add spacers to a 100mm hub than to reduce a 110mm hubs width. This bikes DNA is very clear but it is still built for the needs of the current market, not meant to be a replica.
Most of the ol' coaster-brake singlespeeds were 110mm spaced. Early track bikes, and modern keirin bikes, were spaced at 110mm. 120mm saw popularity with the advent of 5speed rear clusters, but many modern single speeds are, indeed, spaced at 120mm, often built up with flip/flop "track" hubs. Single speed mountain bikes tend to be 135mm, for whatever that's worth. But, up until the first BMX bike, the bulk of single speeds were 110mm at the rear.
I think the 120mm Article 1 bikes will be good b/c it will allow users to run track hubs (120), kick-backs and 3speeds(116mm), or bmx hubs with spacers. So, yeah it's versatile. But, i'd wager that most ppl who build one will just run some bmx hubs anyway, so I wonder if 110 might not have made more sense? That's how most modern bmx frames are built,as well as the firemans bikes. To each his own, I guess. The spacing certainly doesn't detract from the appeal of the bike.
-rob