Bookman Curve Rear Light Black USB-C

Bookman Curve Rear is a compact, rechargeable rear light for bike commuting and city cycling. Its distinctive curved COB LED provides 180° visibility, so you’re clearly visible from the side at intersections and in city traffic. With up to 50 lumens, its main purpose is to help other road users see you, without the light being large or bulky on your bike.

Curve Rear has five steady, pulsing, or flashing light modes and a battery life of up to 20 hours. Auto Battery Guard helps prevent the battery from running out unexpectedly, and the battery level is shown by the power button. The built-in 650 mAh battery charges via USB-C in about two hours.

The light mounts directly to the seatpost with a silicone strap, with no tools or separate mount required. It fits round seatposts with a diameter of 22–31.6 mm, and an extra strap for aero seatposts up to 150 mm in circumference is included. Its IPX4 rating means the light can withstand rain and splashes during normal cycling.

Compared with the Bookman Block Light Rear, you get more brightness and better side visibility. Curve Rear is therefore a good choice if you want a small, easy-to-mount rear light but appreciate extra visibility in city traffic.

Quick Specs

• Type: Rechargeable rear light
• Brightness: Up to 50 lumens
• Visibility: 180°
• LED: COB
• Light modes: 5
• Runtime: Up to 20 hours
• Battery: 650 mAh
• Charging: USB-C
• Charging time: About 2 hours
• Battery features: Auto Battery Guard and battery indicator
• Mounting: Silicone strap around the seatpost
• Fits round seatposts: Ø22–31.6 mm
• Fits aero seatposts: Up to 150 mm in circumference with included extra strap
• Water resistance: IPX4
• Color: Black
• USB-C cable: Included
• Warranty: 2 years