Serfas' Thunderbolt Taillight delivers 35 lumens in an extremely versatile, USB-rechargeable package. Attach the water-resistant silicone body nearly anywhere on your bike, and use the high, low, or two flash modes to make sure cars or cyclists can see you when approaching from behind after dark. At just 50 grams, you won't even notice it's on your bike — but others will!
At Bike Doctor, we offer FREE Ground Shipping on all orders over $150 with a few exceptions. Bikes, Trailers and Wheels require a separate shipping quote because of their non-standard shipping sizes.
When you order any of these items online there will no charge for shipping shown at checkout. Our Customer Service Team will contact you once your order has been accepted, and they will arrange the most cost effective and convenient shipping method to your address in Canada.