D-Tour Bicycle Safety Flag — First Impression

D-Tour Safety Flag package

Recently, Glenn Hanson of GlennAir, L.L.C. sent a couple of their D-Tour Bicycle Safety Flags to test in California and Florida. I installed mine today and shot some photos of the very simple process.

First, a bit about the safety flag: the flag itself is made of highly reflective nylon — fluorescent yellow-green for the body and silver for the stripes and trim. The flag “arm” appears to be made of stainless steel, and the attachment bracket is machined aluminum with plastic frame clamps. The flag comes with two pairs of two different sizes of Cateye plastic frame clamps and very clear and concise instructions for mounting the assembly. Once assembled and deployed, the flag device sticks out about 24″ to the side of the bike. It then folds straight back when not in use.

The heart of the system is this finely machined hunk of aluminum — the flag bracket:
flag bracket

Installation is a breeze…if you have thin seatstays. Initially, I wanted to install this device on my dedicated MTB-framed commuter bike — it fits the “safety theme” of this bike (ugly photo here). However, the seatstays were far too fat to fit the larger of the two provided clamps, there is a brazed-on brakeline guide in the way, and the pannier interfered with placement. I tried mounting the clamps upside-down with a longer attachment screw, but I would have had to drill extra holes in the aluminum flag bracket and it still wouldn’t be quite right.

Not enough room on this bike:
This isn't gonna work!

So, I pulled my Astra road bike out of the shed and slapped this device on in about 5 minutes…all that is needed for installation is a flathead screwdriver. Voila — success!
bracket mounted

After that, the wire “arm” of the flag clips into the bracket. The orientation of the flag can be adjusted from straight out to the side, straight forward or back or at angles between these positions. Here’s how it looks deployed straight out from the side of the bike:


And here’s how it looks folded straight back:
Straight back

I didn’t get to test-ride it today, but I am eager to see how this device will affect the distance motorists pass me with. I get “buzzed” all the time — Tampa-area drivers are not used to seeing bikes on the roadways. When Florida passed their “3 Foot Rule” last year, my friends and I joked about bolting a brightly-painted yardstick (or a sword blade) to our bikes as a visual guide to motorists. I think this D-Tour flag device is a far more elegant and practical way to go about things, don’t you?

Stay tuned for our experiences running this device — it should be interesting!

To contact Glenn about purchasing this flag, please email him at GHansonLtd(at)aol(dot)com.


Here are some pictures from the folks from California. Moe installed the D-Tour Flag on his DiamondBack Transporter, we look forward to his experiences as well.

Side View

Rear View


  1. Mike Myers

    Ghost—-so how is this made, exactly? Is the flag a fabric cover that slips over the pole?

  2. Levi

    Do they have a website or anything?

  3. Ghost Rider

    Mike — you’re right…it is a nylon fabric tube that slips over the steel “arm”, and is secured by velcro.

    Levi — there is no company website that I can find…but we’ll provide the contact information (an oversight on my part; just let me look it up for everyone).

  4. Rich Frueh

    Any info on the company – there is an LLC tag on the bag, but I can’t read it clearly enough? We’d love to find out more about these where I’m from because we have a 3-foot law as well.

  5. Ghost Rider


    Contact the developer at GHansonLtd(at)aol(dot)com. He doesn’t have a website.

  6. Pingback: Alternatives to the Safety Flag

  7. Greg Tabor

    I had something similar from American Youth Hostels when I was a teenager some 40yrs ago, a 2 piece fiberglass pole that clamped onto the bike with an orange flag on the end, spring loaded that would fold when hit.

    This idea is not new.

  8. Ghost Rider

    No, not new at all…just a modern interpretation.

    Glenn’s a “no show” — hasn’t returned any of our requests for contact.

  9. Laura

    What was your experience using this? Did it help to discourage close passing?

    Even if GlennAir is MIA, I’d try to cobble together something on my own — that is, if it works.

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