Picture of Triangle Wheel Reflectors - Bicycle
Triangle Reflector183b.jpg

I must stop watching TRON: Legacy, as I keep seeing things I'd like to make and this time it's something to make you stand out on the road* and doesn't require batteries. Triangle reflectors catch the eye, because they are different to what you're expecting to see from a circular wheel, but they also show your direction of travel. Different coloured spoke reflectors are now available from Hong Kong, so copying the actual wheels from TRON: Legacy is now possible.

These reflectors fit best on 36 spoke wheels (easy to mount due to 36 dividing nicely by 3), slightly more difficult to mount on 32 or 28 spokes. The bike is a Kirk Precision, a British die-cast magnesium machine from the late 80s.

* Do not rely on these to keep you safe on the road!

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Step 1: Parts and Tools

You'll need the following parts to build these:

- 3M Scotchlite Reflective bicycle wheel spoke reflectors (usually sold in packs of 36, with similar brands available on eBay - just search for spoke reflectors)

- 2mm stainless steel x 3m (for two 26" wheels) (bought from Mallard Metals)

- 6x zip ties

- Sellotape


- Side or wire cutters for cutting

- Needle nose pliers for folding

- Measuring tape

Step 2: How to make them...

Picture of How to make them...
Triangle Light 4b.jpg
Triangle Light 2b.jpg
Triangle Light 5b.jpg
Triangle Light 1b.jpg

Cut the stainless steel to a length of 1.5m for each triangle reflector ready for folding. With the first fold you need to make sure that the join falls near the centre of a spoke reflector, otherwise the triangle will flex too much when you join it up. I used a paper triangle template to help make the shape, but to be honest it was easier to do it by eye.

Once you have a triangle you can start snapping the 3M reflectors in place, for the corner pieces you need to cut a notch to make sure the entire triangle is covered in reflective material.

GWorks3 months ago

Hey, looks cool ^^
But I have a question: what did you do to/with the frame in the first picture? Because that is what caught my attention. With a project group, we're building a similar frame, and I'm curious if it's as stiff (against torsion for instance) as the normal frame that's in the rest of your ible pictures.

simonhaydn (author)  GWorks3 months ago


the bicycle frame is quite stiff torsionally, particularly when compared with frames from the late 80s (mine was made in '88), but it's made from magnesium and die-cast. If you want further information on these Kirk bicycles I have a comprehensive development history on my webpage - http://haydn-automation.co.uk/Kirk.htm

The triangles are cool, but my Kirk Precision is cooler :-)

GWorks simonhaydn3 months ago

Haha, nice, thank you! I'll sure have a look :)

CJR21151 year ago
Your shining a light at it in the pic right?
simonhaydn (author)  CJR211511 months ago

It's the camera flash, that's picking the reflectors out so well in these pics. In the video it's my car headlights doing the job instead.

Misakiii1 year ago
amazing!Howgreat it is!
990166691 year ago
Can you make a video of you riding your bike
simonhaydn (author)  990166691 year ago

On the final step of the build there should be a link to the short video I made. Otherwise just head to my webpage.

or a gif

ZaneEricB1 year ago

sick....and sweet bike! What is it?

simonhaydn (author)  ZaneEricB1 year ago

It's a Kirk Precision and you'll find it on my webpage.

Ohhhhhh. fancy!