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Portland Design WorksFenderbot Tail Light


Item # PDW0026

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Item # PDW0026

Fenderbot Tail Light

It can be argued that one of the crowning achievements of the Modern Age was bringing light from the darkness. However, that celebration was so the Industrial Revolution. Nowadays, we have 'robots' to perform our illuminating demands, and as cyclists, we now have the Portland Design Works Fenderbot Tail Light. Virtually theft-proof and impossible to miss on the road, the Fenderbot will keep you safe on your commute.

Portland Design Works' Fenderbot Tail Light lives up to the image that its name conjures. Like a sentient, robotic bodyguard against inattentive drivers, the Fenderbot bolts to your commuter to grant safe passage through the night. At the heart of the system is a blindingly, strong red LED and a built-in precision reflector. The reflector jams a death-ray sized beam of pure light out to the eyes of distracted drivers, and even better, it meets the EU standards of visibility (seen over 500 feet away). The LED operates on one steady setting, and is powered by two AAA batteries.

The Fenderbot attaches to your fender via a two-bolt system. And while your fender most likely doesn't have two ideally placed holes that are exactly 20mm apart, PDW incorporated this attachment design to eliminate theft. They recommend getting your 'DIY' on and drilling two 5mm holes at a 20mm distance between them. After this, it's smooth sailing for a lifetime of illumination.

The Portland Design Works Fenderbot Tail Light is available in a 53x38x78mm size. The light also includes two AAA batteries, and weighs in around 62g.

Tech Specs
Power SourceAAA alkaline
Batteries Includedno
Recommended Usebeing seen
Manufacturer Warrantylifetime

Claimed Weight

Claimed weights are provided by the vendor.

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Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?


>Rating: 5

Great fender light

I've put it through the wringer

This light is bright, easy to control, and great battery life. I really like the fender mount for convenience, visibility, and security.


PDW Overview

Great overview of this product from the friendly folks over at PDW. You get a great idea of the function and size of the fenderbot. BEEP ** boop *beeeep** boop* bleep* bop**


seems like this should work on the topeak...

seems like this should work on the topeak rack. anyone have experience?

It should work on that rack - I have it on my PDW Loading Dock (see picture). It needs two holes, 20mm apart to attach correctly - one hole for the bolt, one for the "stabilizing nub." After fussing with it a bit, I ended up mounting it upside-down to best use the light.

It will work, but with a little tweaking. The spacing between the bolt and extra peg are the same as on most rear racks. However, since this light is meant for a fender, it's got a slight curve and angle to it. If you bend out the light mount on the rack, you could get it to sit vertically, and if you can bend the mount into a curve, then you'd be golden.