Shipping will be temporarily suspended from September 30th to October 12th due to the Korean Chuseok holiday.

S311D

Powered by Hub dynamo
Compliant with StVZO (German Road legal)

diameter(center): 27.2

length: 350

color: matt black

$95.00

In stock, ready to ship

Delivery and Returns

We offer fast and reliable shipping on all orders. Enjoy fast delivery on orders with delivery times ranging from 3-7 business days.

Need it sooner? Upgrade to express shipping at checkout for an additional fee.

Not completely satisfied with your purchase? No worries! We accept returns. Items must be in their original condition with tags attached. For more details, check out our full delivery and returns policy.

Matador® offers in-house repairs on all products whenever possible and takes lifecycle into account when designing and building products to enable efficient repair. No matter how it happened, where you bought it, or how old your product is, email our customer service team to request a repair

  • Diameter (㎜) : 27.2 / 30.9 / 31.6
  • Length (㎜) : 350 (D 27.2 / D 30.9 / D31.6)
    400 (D 30.9)
  • Color surface finish : Polished Silver / Matt Black
  • Seatpost Type : 2 bolt clamp, offset 9mm, mechanical stopper
  • Seapost material : Aluminum 6061 T6

  • Lens Type : Protruding
  • Light Module : 2 wide angle red LEDs,
    3 high brightness red LEDs
  • Brightness : 12 cd
  • Power source : AC 6V(3W) Bicycle Dynamo
  • Nominal voltage : AC 6V
  • Power consumption : 0.5W

  • Approval Code : K-1595
  • Seatpost test standard : ISO 4210 City
  • Compliant with standard or directive : CE, RoHS, StVZO §22a TA Nr.14b (Rear lights for bicycles), IPX5
  • Package Contents : Rear light seatpost, 800mm extension cable

The rear light is not equipped with a switch and is therefore on, as long as the dynamo is connected. If the rear light is connected to the rear light output of a headlight, it is switched on and off via the headlight switch. If the rear light is operated independently of a headlight via the dynamo, the headlight must be switched on separately.

Secure online shopping
PayPal

The Details

  • Diameter:

    27.2mm ⁄ 30.9mm ⁄ 31.6mm

  • Seatpost Length:

    350mm (D 27.2 ⁄ D 30.9 ⁄ D 31.6), 400mm (D 30.9)

  • Seatpost Type:

    2 bolt clamp, offset 9mm, mechanical stopper

  • Seapost material:

    Aluminum 6061 T6

  • Approval Code:

    K 1595

  • Brightness :

    12 cd

  • Power Source:

    AC 6V(3W) Bicycle Dynamo

S311D

In the S311D version, the light is powered by a hub dynamo.
Simply connect the enclosed extension cable to the seatpost and hub dynamo.
StVZO version available in Germany, and has the top two lenses protrude, a side view is always provided for safety. The StVZO version restricts the minimum insertion position so that the mechanical stopper does not go down any further as the top three lenses must always be exposed.

Patented seatpost with an integrated seat rail clamp.

Patented seatpost with an integrated seat rail clamp.

The seatpost tube features 5 holes in which the LEDs are enclosed. A cable with two open ends extends out of the lower end of the seatpost tube for connection to the bicycle dynamo.

Integrated lights

Lights are in frame. Light skin’s special design brightens the way ahead.
Turn them on and off with a simple tap. Be seen by others on the road, everaware of your surroundings.

Special seatpost design of S311

Patented seatpost with an integrated seat rail clamp.

The seatpost tube features 5 holes in which the LEDs are enclosed.    

S311’s USB 2.0 charging port is in the lower section of the seat rail clamp.

The port is accessible from the outside and can be closed using a transparent silicone cover.

Cable

S311E or S311D’s cable with a connector extends out of the lower end of the seatpost tube for connection to the electrical system of the e-bike or the bicycle dynamo.

ASSEMBLY

Use the correct diameter corresponding to your bicycle frame. Use the appropriate tool to fasten the saddle support. The minimum insertion length into the frame is 100mm. The rear light must be aligned so that it shines backward. The connector of built-in light seatpost and the connector of power source should be compatible, which must be ascertained before the purchase of the product. 

S311D Shipping

Shipping Weight

  • 27.2 – 350L : 0.60kg
  • 30.9 – 350L : 0.62kg
  • 30.9 – 400L : 0.68kg
  • 31.6  – 350L : 0.64kg

Shipping Dimension

430*65*80

Safety instructions

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.