Big Dummy Rear Light Mount

by pefozzy, published

Big Dummy Rear Light Mount by pefozzy Jul 16, 2013
0 Share
Download This Thing! Customize Order This Printed Tools & Utilities

Thing Info

1469Views 481Downloads Found in Sport & Outdoors
Report Thing


This is a mounting bracket to attach a flashy rear light to your Surly Big Dummy or other Xtracycle cargo bike.


The Surly Big Dummy doesn't have a great place to mount a flashing rear light. Mounting a light on the seatpost isn't a good spot, since you could be carrying a kid or cargo on the rear rack. Mounting a light on the deck isn't a good option either, as it would get in the way of cargo or the rear grab handle. So, perfect opportunity to come up with something new.

This bracket is designed to hold a Niterider Solas rear light or similar, but could be easily modified.

The part has nut traps for a 5mm hex nut for the clamp and a 4mm hex nut for the flashing light. Use a 5mm socket head cap screw for the clamp. Tighten the 5mm only as much as necessary to hold the clamp in place. If you over-tighten it, you might crack the part.

The Thru-hole in the mount is to run a zip-tie through the mount and around the rack frame for extra security.

I've included solidworks files for your modification. The main file is the master- change that and the clamp and body should automatically update.

Use at your own risk.

More from Sport & Outdoors

view more

Thing Info

1469Views 481Downloads Found in Sport & Outdoors
Report Thing

Liked By

View All

Design Tools



Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

All Apps

This App connects Thingiverse with Makeprintable, a cloud-based mesh repair service that analyzes, validates and repairs most common mesh errors that can occur when preparing a 3D design file for p...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App