The MaxxD has always been a costno- object favourite and Exposure sneaked us the latest version ahead of its official release. Its four-LED output has crept up to a 3,300-lumen max in the accelerometer-controlled ‘Reflex’ mode, which automatically senses faster/rougher riding, while the stopped setting is dimmer to save battery life. Modes are selected via the back button, while run times/ charge are displayed on the rear screen. Three spots and one diffused LED give a healthy level of light for fast riding, but capacity is still enough for big rides if used wisely. The self-contained design removes cable and battery worries, and you can buy supplementary batteries and a wireless remote switch. An appcontrolled 'SYNC' version is due in the autumn, but as it stands it’s our favourite smart grab-and-go light. Weight 340g Run time 1hr 55mins Price $562