Mounting Instructions

Fitting Instructions for the Cook-Jones 1 piece counter

 The Cook-Jones counter will fit on most bicycles without modification. When you receive the Cook-Jones counter unscrew the 2 brass toggles and locate the counter housing over the threads and replace the brass toggles. Don’t over tighten the toggles, when in place make sure the toggle bars are facing down, this will stop the toggles from working lose. Remove the wheel from the bicycle and slip the counter over the axle on the LEFT or RIGHT side depending on the orientation of the counter. Make sure that the drive peg sits between the spokes. Put the wheel back on the bicycle with the counter between the fork and the wheel. Tighten the wheel securing nut or lever.

CAUTION: IMPORTANT - DO NOT ATTEMPT TO ROTATE THE WHEEL OR RIDE THE BICYCLE UNTIL YOU HAVE CHECKED FOR PROPER CLEARANCE. YOU MAY DAMAGE THE COUNTER. 

Wiggle the wheel about a little. If the large counter gear rubs against the fork the fit is not correct. If free rotation without rubbing cannot be obtained, the counter cannot be used on your bicycle.

If there is interference between the small gear and the spokes, then the amount that the gear protrudes can be adjusted by using the allen key provided and undoing the grub screw which can be found on the outer collar.

If you are unable to fit the counter to the bicycle, it may not be possible to use this model counter on your bike, please contact us for details of our other model which may be more appropriate.

Again – before attempting to rotate the wheel, check for interference. If you do not do this you will damage the counter. We will not be responsible for damage due to improper installation. 

PROBLEMS

The Cook-Jones Counter fits the majority of bikes; however, some bikes have front wheel geometry that makes installation difficult. If this is the case then please contact us as our other model of counter may be a better option. When the counter is put on the bike, and the axle nut tightened, there should be some slight play, or movement, in the mechanism. If there is any binding at all, the unit must not be used until the binding is eliminated.

We can supply replacement parts if needed

We also offer a 12 months replacement warranty on all parts 

CAUTION

Avoid excessive speed

The manufacturer of the Elesa counter used on the Cook-Jones counter recommends that rotation not exceed 1500 rpm. In riding terms this amounts to about 25 mph or 40 km/hr. Many get away with riding faster, but forewarned is forearmed. Excessive speed may cause damage to the working parts of the counter.

When not measuring

The Cook-Jones Counter can be removed when not measuring; the drive gear and supporting arm will remain in place. Undo the brass toggles and slide the counter out, keep the counter and toggles safe. When you come to do another measurement, slide the counter in to position – making sure the gears mesh properly – then secure in place using the brass toggles.