Patented seatpost with an integrated seat rail clamp. The seatpost tube features 5 holes in which the LEDs are enclosed.
26.6 / 31.8㎜
D31.8, 520 / 600㎜
Color and surface finish
Polished Silver, Matt Black
Aluminum 6061 T6
5 LEDs with integrated electrical light control and battery management system. The 5 LEDs are sunk into the seat post tube. The LEDs, circuit board and battery are enclosed in a plastic housing and are thus protected (dust and splash proof in accordance with IPX5).
There are 2 modes to choose from:
- 5 LED mode (all 5 LEDs light up)
- 3 LED mode / energy saving mode (only the top 3 LEDs light up)
5 high brightness red LEDs
Two Alkaline AA Batteries (DC 3V)
(fully charged battery)
(Minimum) 50 hours - Continuous light mode
(Maximum) 100 hours - Chase, Flashing mode
Seatpost test standard
ISO 4210 City
Rear light seatpost
* AA batteries aren't included
Use the correct diameter corresponding to your bicycle frame.
Use the appropriate tool to fasten the saddle support.
Adhere to the safety lines of the minimum and maximum insertion heights.
The rear light must be mounted in such a way that it is illuminated at the rear. Please observe the minimum insertion mark on the post and ensure that this is adhered to. The rear light must be aligned so that it shines backward. The reference axis (see drawing) must be aligned with the longitudinal axis of the bicycle.
Please refer to the recommended torque settings in the above table. Incorrect torque can damage the product and could lead to personal injury.
Minimum insertion height
Mounting height of
The first top LED functions as a button and is used to operate the rear light.
Push and hold for 2 sec
Change between the 3 and 5 light
On → Chase → flashing → pulse → continuous → Off
How to insert batteries
Insert two 1.5volt AA batteries into the base of the seatpost. Make sure the (+) direction faces into the post as per the illustration over leaf.
When light and
batteries are wet
If water enters the inside of the seatpost, remove the battery and let the inside of the product dry thoroughly before using it again.
At startup, the product must be dry. Remove any moisture before riding.
After installation, test that the seatpost does not drop under load.
Take care that the LEDs are not covered by a bag or clothing when riding.
Do not make any independent changes to the product. Do not try to open the product.
Steps to take in
the event of a failure
If the rear light is defected, it must be immediately replaced.
If you ride with the seat post low, it may be the case that the seat clamp covers one of the lenses. Please ensure that the clamp area is not directly tightened on to the lens as per the illustration below.
Install the seatpost
Please read through these instructions completely before you install your new seat post.
If you are not an experienced bicycle mechanic, or do not have correct tools for this job, Please take the parts and the instructions to your favorite bike shop. Let them do the work.
Do not modify these seat posts, Modification may result in failure and could cause severe personal injury.
Modification of the seat post will also void the warranty.
Min: -15° C
Max: 45° C
Optimum storage temperature: 20-25°C
Please be aware before order. The import tax will be charged to you separately. Taxes may vary depending on the country. If you want to return or exchange, you will be charged a Fedex round-trip shipping fee. Prices are inclusive of basic international shipping. Regions where additional shipping fee are generated will be charged at the payment window.
Please send us unused products by prepaid, will refund you after confirming arrival.
Please send us unused items by prepaid, and send $25~$35 re-delivery courier fee depending on your location. After receipt the goods and courier fee, we will replace it with another product.
Seatpost and light module: 2 years from the date of purchase.
In case of warranty, (replacement or repair), please contact the distributor through whom the product was purchased.
The product packaging is made of recyclable materials.
Dispose of these environmentally friendly in the provided collection containers.
Old appliances and batteries must not be disposed of with normal household waste.
According to EU Directive 2012/19/EU, the product must be disposed of properly at the end of its service life. Return the old device to a collection point for electronic waste or a recycling center.
The LEDs are numbered from top to bottom
If LED numbers 4 or 5, or 4 and 5 are defective, it is permissible to switch to the 3-LED mode, which complies with the approval. A repair or replacement is still recommended.
If LED numbers 1, 2 or 3 are defective, the seatpost must be sent to the importer for repair or completely replaced.