Have bought the lamp because of the good test results, which is not to use the lamp holder also stimmen.Allerdings because the lamp forward has a large overhang and the holder does not hold very firmly on Lenker.Da the lamp depends on bumpy down there still another bracket I try it with the, hope nützt.Die modern handlebar tapered at many points, the manufacturer of attachments should take into account. Written PS.Habe at Busch & Müller and get in response: "directing their criticism of our development continues, other holder does not fit" I still have a LED Radlampe Smart lens and thought the bracket looks the same, so try and passt.Top bracket.