batteries not included




“If string will do the job use string.”

Mike Burrows

five bob data display*

You will need…

  • 1 Zip-tie
  • 1 Bulldog clip

Zip-ties – AKA cable-ties – can be purchased in bulk from electrical wholesalers in various lengths and weights. If you’re too tight to pay cash-money for a supply you can find a pirate sign – for example “FILM UNIT” –  cable-tied to a lamp-post and cut it down carefully. Cut the tie where it’s tail enters the head to leave the longest remnant possible.

Alternatively a fine blade can be inserted into the head to lever the ratchet spring open and unlock the tie in one piece. String also works and can be transferred easily between a fleet of machines.

Bulldogs come in all sizes. They are available at stationers. Choose one that suits your application.

Tie the bulldog clip to your handlebar stem, or any exposed cables where its contents will be easily visible on-the-fly.

That’s it.

If the clip tends to rattle on the bars while empty you can make an acoustic damping system using a small section of rubber sheet – cut from failed inner-tube – secured with more zip-ties or double-sided cellulose-based, pressure sensitive adhesive tape (Sellotape).

Use your data display to carry…

  • route-summary information – road numbers, places en-route etc.
  • shopping lists
  • destination addresses
  • flyers
  • maps

Works well with…

  • a plastic bag for rain-proofing
  • a head torch to read data in the dark

Also works with Twenty-first Century bikes.


*five bob = five shillings = 25p