Skip to Main Content

Serfas Thunderblast Front Bike Light

sku# 172854
Serfas - Thunderblast Front Bike Light
Model Info
Select Color:
Please select a color
Select Option:
Please select an option
United States flag Free Shipping! On Orders Over $50 Details

Product Info

The Serfas Thunderblast Front Bike Light can see into the future: when it senses its batteries running low, it lets out an 85 decibel alert to tell you it's time to either pedal harder or switch modes. That's smart!

Product Details


100 Lumen OutputSuper bright microLEDs lead the way.


USB Rechargeable Li-Polymer Battery


Solid ModesHigh (100 Lumens): 2 hrs / Low (20 Lumens): 7.75 hrs

Flash ModesHigh (100 Lumens): 3.5 hrs / Low (20 Lumens): 14.5 hrs


Extra Long Mounting Straps for Endless Mounting Options

Additional Features

"Blast" Audible Warning System (AWS)When the battery reaches 10 minutes of runtime, in its current mode, the light will emit a long beep followed immediately by a short beep. Sound will continue every minute.


  • Biking Type: Mountain, Urban/Commuter
  • Light Output (lm): 100
  • Weight (g): 48
  • Rechargeable: Yes
  • Warranty: Limited Lifetime (1 Year on Batteries)



Related Buying Guides

icon-returns icon-ruler icon-ruler-mini icon-compatibility icon-location