Current Reviews: 2

Rod magnets for embedding in rotors for hall effect pickups

  • Model: HE-Kit
  • Shipping Weight: 1lbs
  • 2 Units in Stock
  • Manufactured by: FBG

NZ $20.00

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Note: price is for two magnets. 

2 x  high temp magnetic rod triggers to be installed in the trigger rotor.


4 mm diameter
3 mm long

These magnets are suitable for use with through hole or surface mount Hall Effect devices.

Due to the recent unavailability of our preferred through hole mount Hall Effect devices we now manufacuture our own pickup plates with surface mount devices. Unfortunately unless you have PCB design skills making your own PCB plates to mount surface mount devices is not practical. 

Why upgrade to a Hall Effect ignition trigger system?
There are two key reasons.

Reason one is to get rid of the wasted spark and give the primary current up to twice as long to build to a maximum in the primary windings of the ignition coils. To get rid of a wasted spark you usually need to move from a crank mounted pickup system to a cam mounted pick up system.

Unfortunately Inductive pickups output voltage is very dependent on the speed the ferrous lobe passes the inductive pick up.

Cams rotate at half the speed and the cam driven trigger rotors are less than half the diameter of the flywheel. Both of these factors conspire to ensure that the speed that the ferrous lobe passes the pickup up is relatively slow to crank mounted systems. Which means you sometimes get a weak and erratic ignition system if you try to operate inductive pickup on a cam driven system.

Reason two is the true timing of the ignition pulses changes with changes in speed due to the hysteresis inherent in inductive pickups. This means that the degrees of advance you set in your system does not correspond with what you actually get at all revs.

NONE of the above are issues with hall effect pickups. Hall Effect pickups can give you a very precise (accurate) and clean signal from less than 1 rpm to more than 20,000 rpm.

Most (all?) modern European cars and modern bikes hence use hall effect cam driven pickups.

For overseas orders please email us your delivery address and we will send you a PayPal invoice including postage costs for this item.


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