I had a little fun and games with the mounting of a Busch & Muller Lumotec IQ Cyo Senso Plus without reflector (model no. 175QCSNDi) on my Surly Long Haul Trucker which is fitted with SKS Chromoplastic P50 mudguards and the standard cantilever brakes. I had been under the impression that the mounting bracket that came with the Lumotec IQ Cyo Senso Plus was suitable for cantilever brakes. I was wrong. Why does Busch & Muller not provide a lot more clarity on mounting the lights is beyond me. A search via Google was not that helpful either so I hope that this post is useful to others.
The problem, for me at least, is that the standard mount that comes with the Lumotec IQ Cyo Senso Plus means that the mounting bracket interferes with the hanger wire of the cantilever front brakes, making the mount as supplied useless.
One possible solution I thought of was to temporally mount the light off the cantilever brake mounting post. However I would have needed a longer bolt and secondly the light interferes with the mudguard meaning it would have to be mounted on tilt. Not really ideal, even as a short term solution.
I am was looking for a short term fix as I wanted to use the bike with the light and it would take at least a week, if not longer to get a proper Busch & Muller mounting bracket such as the BMD25 from SJS Cycles.
Well after speaking to Baalzamon I have mounted the light using the supplied mounting bracket and a 6 mm x 90 mm bolt with a couple of extra nuts and washers to “lock” the mount into a position in front of the cantilever brakes. I am not sure how well this will work out longer term but I will give a try on a four day mixed road conditions ride coming up and then make a decision on whether to spend the mullah on a BMD25 for a more professional looking solution.
Edit: February 14, 2013: Well I have done over 3,000 kilometres now with this setup including a good 1,000 kilometres plus of dirt roads, which seemed to be forever corrugated and it is still holding up well so I haven’t made any changes to the mount.
In the meantime I hope this post helps others out who may find themselves in the same situation.