Two similar lug patterns were developed in the 1960s: the Keyhole and Keyhole Spade (or Keyhole Special) designs. Both were fitted to racing bikes and touring bikes. They were modified versions of fairly simple, box-standard long-point lug blanks. The same basic lug blank was also used, unmodified, on Track Supreme models. First, below, typical examples of the basic, unmodified, lug as fitted to the Track Supreme.

Below: Keyhole.

The above frame is typical of Keyholes: fairly simple lugwork, short chainstays and wheelbase, hard and stiff to ride. The seat lug looks the same as that on many Italia models; the head lugs and the geometry differentiate the two models. The Italia was a touring bike with longer wheelbase and more comfortable ride, whereas Keyholes were often full-race machines. Keyholes typically have oval chainstays (stiffer), whereas Italias typically have the round 'pencil' stays (more comfortable). Also, the head lugs on the Keyholes were different, having drill holes and often extra points on the head tube.

Below are photos of a typical Keyhole Spade, (or Special, as given on its order form in Alf's handwriting) this one from 1982. Note the extra swirl at the sides of the tubes. The drill holes were often connected by slots. The bb shells also often had longer points than on the Keyhole model.

Click here for a typical Keyhole complete bike.
Click here for a Keyhole Spade complete bike.


Above left, 1976 Keyhole.
Above right, 1981 Keyhole-Spade; note extra curl on head lugs.


Above: some Keyholes featured slots connecting the drill holes.


Above: mid-1980s Keyhole.

Mountain King


Above: Keyhole bb shell.

Below: a rare curly track bike, in full chrome. Keyhole lugs.

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