Serfas Thunderbolt 2.0 50 Lumens Rear Light RGroup_3E0A9DFC5EA874D9F8D483AC4E08007F8393DABA This bag includes adjustable mounting

This bag includes adjustable mounting systems to allow fitment to almost ANY bike

Auto air control valve that easily presses onto the valve to release air

0 is the second generation of our game changing hydration solution

Flashing mode30 hrs

making it a versatile addition to any bike setup

Serfas Thunderbolt 2.0 50 Lumens Rear Light RGroup_3E0A9DFC5EA874D9F8D483AC4E08007F8393DABA This bag includes adjustable mountingThe Serfas True Series lights are designed to be top tier in the market. With the "True" stamp of approval, these tail lights not only meet but exceed their expected lumen output. They also offer all the features you expect from Serfas lighting. Welcome the new True Series lights and get ready to turn night into day.