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CatEye SYNC SYNC Kinetic Rear Light SYNC Core Front light daytime visibility 500 lumen accelerometer Group Ride mode eye-friendly 


Cateye Sync Core and Kinetic Cycle Light set

  • €105.56
£95.99 £119.99
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When you buy the Cateye Sync Core and Kinetic Cycle Light set, you will earn of rewards points to spend on your next purchase from us, anything online and instore.

Hassle Free Returns


Refunds are processed by the same method of payment used for the original purchase. All debit and credit card refunds can only be made to the card used for the original transaction, cheque payments will be refunded in cash but due to banking and clearance restrictions can only be refunded 14 days after the purchase date.


Store Purchases

Should you be unhappy with a purchase from one of our stores, please return the goods with proof of purchase within 7 days for a full refund, or within 14 days for a credit note. Any items can be returned to any Cycles UK store, providing they are returned in their original condition – unused (unless the goods are faulty). We regret we cannot refund special orders or cycle purchases.


Mail Order Returns

At Cycles UK, we pride ourselves on excellent customer service and aim to ensure our customers are 100% happy with their purchase. In the unlikely event that you are not, please feel free to return your goods within 90 days of receipt of them, with proof of purchase for a full exchange or refund. All items can be returned to us providing they are returned in their original condition – unused (unless the goods are faulty). All Mail order purchases must be returned by the customer to our head office address unless arranged otherwise. Depending on the reasons for returning an item, postal charges could apply.


Returning your order from within the UK 

Return your item(s) to us using the Royal Mail tracked service for free. (Excludes bikes and bulkier items and parcels over 2KG for UK use only)


  • Please print off the Royal Mail label, and attach it onto your parcel. 
  • Click here to print off a label .
  • Note when asking for an *Order ID this need to be preceded with the word "Web" followed by a space. For example Web 1234
  • Complete the returns note that came with your package and pop it into the package with your return.
  • Take your parcel into any Post Office. Remember to ask for a proof of return receipt.
  • The return can be tracked using the tracking reference from your receipt at
  • We aim to complete returns within 7 working days (excluding weekends and bank holidays).
  • We'll send you an email informing you that the refund or exchange is complete. 
  • Any refund will automatically be issued to the payment method you used to place your original order. This typically takes 5 working days in the UK, depending on your payment method issuer.
  • We endevor to accept all returns, and they don't need to be in the original box or bag, as long as they're securely packed. If an item is returned in an unsuitable condition, we will send it back to you.


International Returns

If you wish to return an item that is unsuitable or not required, you will be liable for the return delivery. If you want to try a different size or style, then, delivery will be charged again to post the item back to you.

If you feel the product(s) you have purchased are faulty, please contact our Customer Service team on 44(0)1268 775265.


Disclaimer: Our website contains links to websites owned and operated by third parties; these are provided solely for your convenience. Cycles UK has no control over these sites and is not responsible for their content or availability.

Cateye Sync Core and Kinetic Cycle Light set

Season :

Brand : Cateye


Weight : 0.00KG

This set comprises of SYNC Core Front light and SYNC Kinetic Rear Light , With up to 500 Lumens on the front enough to see where you’re going and be seen. The back light has the built in Accelerometer changing as you reduce speed helping other road users to be aware of your change in speed.

SYNC Core Front light

A Compact and lightweight high power rechargeable headlight With 500 lumens and excellent side visibility, the SYNC Core gives you the power to see and be seen.

  • Key features
    • Excellent daytime visibility when using the Hyper flash mode
    • Superior side visibility
    • Lithium-ion rechargeable battery
    • USB rechargeable (Micro-USB cable included) Charging time: 3-6 hrs
    • 5 light modes
    • Mode memory function
    • Optional helmet mount, centre fork bracket and out-front bracket 2 available
    • Weight: 94g incl. Flextight bracket

This light is great for those who want to be seen and see where they are going. The 2hr run time at 500 Lumen means they’re suitable for a training ride as well as a commute

SYNC Kinetic Rear Light

Has a built-in accelerometer that switches to burst mode as you decelerate. Use alone or in combination with other models for unparalleled levels of 360-degree visibility, day or night.

  • Key features include
    • Built-in acceleration sensor for Kinetic mode (Automatically turns on with 50 lumen brightness when bike deceleration is detected)
    • Excellent daytime visibility in Daytime HyperFlash mode
    • Group Ride mode eye-friendly to team riders behind
    • Superior side visibility
    • Lithium-ion polymer rechargeable battery
    • USB rechargeable (Micro-USB cable included)
    • Low battery indicator
    • 6 modes *Charging time: 2.5h
    • Mode memory function
    • Battery Auto Save (The mode automatically changes to flashing when the battery power gets low)
    • Weight: 43g incl. band

This light is great for making up a set of rear lights in particular its useful ability to make those behind you aware of your reduction in speed whilst having the group ride function to assure the only upset your causing is with your speed!


CatEye SYNC allows you to sync and operate multiple lights with just one button making it the easier, quicker and safer lighting solution for all types of cyclists, from commuters to enthusiast riders.  

  •  Key features includes:
    • Just one touch SYNCs all lights
    • Smarter visibility all year round during the day or at night ensuring all angles are covered
    • Switch both lights on / off with the power button of the SYNC Core front light
    • Synchronise the flash timing of rear lights for improved visibility to other vehicles on the road, day or night.
    • Additional lights can be added and fully customised for enhanced, dynamic, controlled visibility, day or night
    • CatEye SYNC is compatible with Smartphones, using the CatEye SYNC app to set up and monitor up to 7 SYNC lights.
    • Exclude modes you’re not going to use on the front SYNC Core light
    • Synchronise the SYNC rear lights so that they flash in unison.
    • Synchronise the SYNC rear lights to all activate in Kinetic mode.
    • The CatEye SYNC app includes battery level information for all SYNC lights, all communicated through the SYNC Core front light switch.
    • The SYNC Core monitors power levels and connectivity, eliminating any worries over whether your rear lights are still illuminated and synced while riding. No more checking behind you!
    • The CatEye SYNC app’s “Find Me” mode identifies which rear lights need charging if you are using multiple numbers of the same rear light.

CatEye SYNC Compatible Devices:

iPhone XS/  iPhoneXS Max/ iPhone XR/ iPhone X/ iPhone 8/ iPhone 8 Plus/ iPhone 7/ iPhone 7 Plus/ iPhone 6S/ iPhone 6S Plus/ iPhone SE/ iPhone 5S/ iPhone 5C/ iPhone 5 (ios 9.0 – 12x)

Android System Requirement: system requirement Android 5.0 – 9.0.X/ Pixel 3 XL/ NEXUS 6P/ NEXUS 6/ NEXUS 5X/ Galaxy S6 edge/ Galaxy S7 edge/ Xperia ZL2/ Xperia Z4/ Xperia X Performance/ Xperia XZ/ Xperia XZ1/ Xperia XZ1 Compact

Xperia XZ Premium/ Xperia XZ2 Compact/ Xperia XZ3/ LG G4 (isai vivid LGV32)/ isai V30+/ Android One X2/ AQUOS Compact SH-02H/ AQUOS R Compact/ AQUOS R2


  • €105.56
  • $104.35
  • $146.19
  • kr1,095.54
  • kr964.00
  • kr785.59
  • $156.43
  • ¥10,931.88
Most bike lights are rated in Lumens. A Lumen is a measure of the total visible light emitted and is commonly used for all kinds of bulbs. If you are used to buying light bulbs in the old Watts measurements, a quick guide is:

  • 40 Watt Bulb = 450 Lumens
  • 60 Watt Bulb = 800 Lumens

There is no fixed agreement on how many Lumens you need for a bike light as it depends on the type of cycling you are doing. As a rough guide we say that:

  • Daytime running lights to be seen in daylight = 100+ Lumens
  • Urban commuting lights to be seen in town = 50 to 200 Lumens
  • Rural riding lights to see where you are going = 400 to 600 Lumens
  • Trail riding lights to see everything = 600+ Lumens

One thing to worth noting is that most lights advertise their headline rate. They may say they do 1000 lumens, but if you read the small print, they might only do that for an hour. The same light will probably work at 500 or 600 lumens for 2 or 3 hours, so it's worth buying a light with more lumens than you need to get decent run times.

Typically you will want a brighter front light than rear light. It's common for a 500-lumen front light paired with a 100 lumen rear light because you need a lot more power to see where you are going than to be seen.
Technical Information

SYNC Core Front light





500 Lm

2 hrs


150 Lm

9 hrs


100 Lm

15 hrs

Daytime HyperConstant

500 / 100 Lm

18 hrs


100 Lm

130 hrs

SYNC Kinetic Rear Light





50 Lm burst in all modes



40 Lm

1.5 hrs


4 Lm

15 hrs


30 Lm

50 hrs

Group Ride

40 Lm

15 hrs (low pulse)


50 Lm

20 hrs

Daytime HyperFlash

50 / 50 Lm

30 hrs


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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.

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