Fitting dynamo light, problem with headset

[confusedcyclist]

I purchased a pricy B&M IQ-X dynamo light some time ago, it fits fine to the road bike with the internal bearing system, but on my Surly Disc Trucker is an external headset, the lower head-tube race sits proud of the forks, as shown above. This is preventing mounting the dynamo light using the supplied bracket.

I'm looking for a low cost solution to mounting the light. Any thoughts? There's a B&M handlebar mount, but that's £16 plus postage. Ideally I would prefer the lower mounting position if possible, but happy to settle for handlebar mount if necessary.

Any ideas on how I can make this work? I can't find much in the way of resources, as dynamo lights aren't common on the English speaking interwebs.

 

[Yellow Saddle]

Longer bolt and spacers, even washers.

I had the same problem on my bike but also had to deal with the fact that it has a caliper rim brake. Therefore that bolt had to be high-tensile. In your case the problem is simple, a hardware store bolt will do the trick.

 

[confusedcyclist]

Thanks @Yellow Saddle, so simple, not sure why I didn't think of that.

 

[Heltor Chasca]

I've got a DT and a similar B&M. I undid and removed the clamp from the headlight housing and put it back on upside down. Fits like a beauty now. No need for spacers etc. Just a washer big enough to stop the bolt/nut going through the clamp. HTH.

 

[freiston]

I drilled the thread out of a [thick] nut to make a spacer. I swapped out the bracket that came with the light for an extended and reinforced bracket for cantilever brakes.

 

[mjr]

Any thoughts?

Surly are dicks. Again. (I was already grumpy about them not providing a stand mounting plates on what are meant to be touring/utility bikes then whinging when people put clamped stands on.)

Bolt and washer stack is where I'd be going, too. That or a bike toss.