Busch & Müller Lumotec IQ Cyo Sport Plus LED Front Light

First thing to say is the description is not exactly the product you receive, this is the Lumotec IQ Cyo N Plus. Not that I am complaining, it's a great product, but I only got lucky finding this on amazon, it never would have appeared on shopping searches on google. Another good thing is that the actual light I received is slightly better than the description, it is in fact 70 Lux. I have nothing to compare to but if that means its 15% brighter than the previous model then all to the good.Now to the setup of the light. I have a winter road bike with caliper brakes so the first thing you need in that set up is a different bracket to attach to the bike. The bracket the light comes with is for Cantilver brakes. Search the internet and you will find a B&M bracket for caliper brakes, but even better for me was the SON bracket for attaching to handlebars which works perfectly well with this product. So the light position is much higher than otherwise would have been, which is good for me as my riding is on hedge lines roads, a higher light means more safety, more likely to be seen by oncoming traffic. I am running a Shimano Dynamo Hub on Exal TX19 rims with this. I taped up the connectors for the rear light, not needed for me, I have a battery powered cateye for that. Schoolboy error I taped the ends together doing that and short circuited things so nothing worked until I separated them with tape. Next up the main cable taped to brake cables and fork down to the connection, shortening the cable only a touch to fit. All up and running. The 19mm rims needed a wider tyre, 28mm gatorskins, then the wheel was good to go.Performance. There is no noticable drag at all. The drag I believe I am getting on this now is the extra weight, the wheel is heavier than my regular wheel, the tyres and inner tube are heavier too, so I estimate my bike weight has increased by at least 600g maybe more. It's a winter bike and it's not all about speed in winter. I found my average speed dropped on my first ride out, from about 18 mph to 16.5 mph. I was happy with that expecting to be struggling to maintain 16 mph.The light produces effectively two beams from the way it reflects inside the unit I guess? Immediately in front of you its a nice wide beam, illuminating the width of the road. Then as this falls away a longer square shaped beam projects out about 40+ ft in front. It's plenty bright enough to make traffic noticably reduce speed. It's also plenty bright enough to feel you can go the speed you want to, albeit as already mentioned you are going slower due to a heavier bike/wheel anyway. The standlight is fine, plenty of light for junctions but thats all its there for. I will be carrying a powerful head torch for if a puncture happens, the standlight is only good for about 4 minutes really. My first ride hit a rain shower, not really heavy but enough to know the light and contacts were completely untroubled by this.Aesthetics: I am adding this because I was so pleasantly surprised to see how small the light is. Even though other reviewers have said the same you really don't appreciate it until you see it. The light itself is the one thing not adding any weight in my setup. It's so small and neat and you forget all about it.Last thoughts: Take it for a little test ride round the block to get the height right, take a torch with you and the right allen key or spanner and adjust until you are happy. Then you are set to do a proper ride. If you are buying a new wheel with tht dynamo hub to go with this don't make my mistake and try to put the wrong tyre on. In the end I only lost a couple of days waiting for the right tyre to arrive in the post. There is good information on Sheldon Brown about the right tyre to go with the wheel you have for this.

This is a great light, it replaced (with a bought-separately new hub dynamo) a German spoke dynamo light which gave a comforting glow around the front of the bike on otherwise unlit country trails at night. The 'stand light' function is very welcome at the few T-junctions I have to wait cross major route traffic at. It's brighter than the halogen light it replaced but much more 'focussed' - the contrast between the lit and unlit part of the road means I find I have to choose between riding fast while remembering what's in the dark patch in front of the bike or riding slow with no advance warning of what's beyond the lit patch. I wouldn't go back to the soft glow of a halogen lamp, but I was very struck by this one subjective difference between the outgoing and replacement lamps!The mount is not at all appropriate for my bike. I twist mine through 90° and hold it on with the adjusting bolt for the front cantilever brakes. This kludge is far from ideal - it isn't totally secure so switching the lamp on and off usually knocks it off-centre and the extreme pitch of the mount interferes with the lugs on the on-off switch. I'd have no hesitation awarding this light 5 stars if it came out of the packaging and fixed properly to the bike.

Jeez, how much searching on the internet did I do to eventually find the right light to fix onto my Shimano dynamo hub?! It wasn't until a friend suggested this brand to me that I actually found anything constructive - but this may actually just be my lack of internet searching skills!!! Anyway, I was a bit a reluctant to part with £70 for a light, but I grasped the nettle and am so glad that I did. When I received the packaged (in less than 48 hours, I may add) I was quite surprised by how small it actually is - about 3cm across the lens. Fixing the unit the hub was a doddle, even for a complete and utter muppet like me, and I was up and running in less than ten minutes...Make sure that you have three small zip ties to fix the cable to your fork. And other than an allan key and a small adjustable spanner, no tools are neededThe first time I rode with this light I was just amazed at it. The best I describe the throw of the unit's light is one large central square, with two slight smaller squares wither side. If you focus the main beam about seven metres from your front wheel you'll find that it illuminates the whole nearside lane in a brilliant white light that allows you travel as fast your legs will pedal. There is absolutely none of the reluctance to travel at speed that you experience from lesser lights. As for the rest of the main central beam, it fades away into the far distance and will light up road signs at about two hundred metres away. The two 'squares' either side of the main beam are slightly less bright but serve to illuminate the nearside verge and signposts, whilst the other beam casts a glow right across to the offside verge. There's also a little lip on top of the light that eliminates any loss of night vision. Oh, and it's that good that on-coming vehicles actually dip their headlights for you - something that I never used to experience with a battery powered Cateye...The on and off switch are easy to reach whilst riding, and there is a stand-light that will run well after you've stopped pedalling....Erm, what else to say? Oh, and the other thing thing in relation to this light and a dynamo is that there is no maximum burn time, no re-charging and no having purchase and discarb batteries. I really cannot understand why dynamo lights are not more come in the UK!!!!!In short, if you're looking for a dynamo light, buy this one! It's brilliant

Bought with the rear light B&M Topline brake rear rack light that fitted to a topeak pannier rack to work with a Shimano hub Dynamo Dh3d72. Got it fitted by my LBS who also made the wheel. Looks good initially - will report back.

Although not quite the searchlight beam illustrated in some U Tube demonstrations, it provides good well focused illumination down unlit side roads and paths at moderate speeds. Easy to fit, well built.