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Nucleus Locker – For CYC Photon – Silver
The Nucleus Locker makes changing your CYC Photon chain rings easy!
Use it as a tool to remove the stubborn CYC nut. Add some colour and style to your ride.
Is this compatible with your motor? Download the user guide here.
€52.09
Availability: 20 in stock
Nucleus Locker for the CYC Photon motor.
Add a touch of Bling to your ride with a Nucleus Locker.
Designed to replace the difficult to remove chain ring nut on the CYC Photon motors, making it easier to replace chain rings and adding style to your ride.
The Nucleus Locker not only creates an easy to remove nut that can be loosened with a standard 16-notch bottom bracket tool, it also acts as a removal tool to loosen the often stubborn existing CYC Photon chain ring nut.
This stunning retaining nut comes with a set of engagement pins so you can use a standard 16-notch bottom bracket tool to remove the existing CYC nut. The Lekkie Sixteen-44 sockets are designed to fit and available here.
Get the perfect chain-line or complete the whole easy change SplineUp system with the other Lekkie SplineUp parts.
Includes Lekkie Nucleus Locker assembly only (Locker, bearing, flanged bearing bush, 5x grub screws). SplineUp chain-ring set not included.
Note: this product will only fit CYC Photon motors. Please contact us if you are unsure of compatibility.
| Compatibility | CYC Photon Motor (Gen1 + Gen2) paired with Lekkie SpineUP or stock CYC chain ring |
| Material | CNC 6061 Aluminum |
| Finish | Anodized Silver |
| Tool Compatibility | Lekkie SIXTEEN-44 Socket, Park Tool BBT-9 or similar.
Must be socket, spanner will not fit |
| Weight | 90g |
| Version | 1 Released 2025. |
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Frequently Asked Questions
Q. Will these fit my motor system?
A. Check if your motor is listed in the product specification, or search using the by system menu.
If you can not find your motor system contact Lekkie so we can help.
Q. Why should I choose a long or a short crank length?
A. In general if you are a smaller person you would have shorter crank lengths. For E-bikes shorter cranks can also increase ground clearance and enable higher pedal cadences.
You generally do not need the increased leverage a long crank provides with e-bikes.
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LEKKIE Warranty
We want you to always be happy with your Lekkie product.
If you receive your product and there is a problem, contact us and we will work with you to quickly put it right.
If your Lekkie product fails within one year of fitting, we will evaluate the failure cause and in most cases, replace your part.
If your product fails at any time during its life, we want to know what happened so we can improve our future models. We will also help you choose a new product and bike set up to get the best out of your Lekkie components.
If you have had years of great performance with your Lekkie product and could not be happier when it finally wears out, share your story and we will give some love back with a discount on your new parts.
Full warranty terms here.
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