Lumotec bracket

Brendan Halpin said:

I had bodged a bracket to put a B&M Lumotec on my handlebars --
took an oldfashioned forkblade dynamo bracket and twisted the tip
with pliers. Worked fine for about 6 months but gave up the ghost
very annoyingly as I set out for a dusk ride on Saturday.

Given the brackets that came with it were useless -- solid but
useless -- what's the best source of replacements?

I made one using a Minoura Space Grip I was given.

Approx 0.5in long pice of aluminium angle bolted into the bar of the space
grip (guess at M5 nut and bolt), and the other face of angle drilled to
clear the bolt of the B&M lamp. Rounded the corners off with a file to
clear the slight recess in the B&M mouldings.

Slightly posher version could be made by putting a long stud longways
through the space-grip bar, and use a couple of nuts on the end to space the
lamp off the end. If doing this, I'd shorten the length of the space-grip
bar. If you also added a couple of the domed washers fitted to many MTB
brake blocks, the lamp would be fine-tunable for left-right until the nuts
are tightened.

- Nigel

--
Nigel Cliffe,
Webmaster at http://www.2mm.org.uk/

Nigel Cliffe said:

I made one using a Minoura Space Grip I was given.

Approx 0.5in long pice of aluminium angle bolted into the bar of the space
grip (guess at M5 nut and bolt), and the other face of angle drilled to
clear the bolt of the B&M lamp. Rounded the corners off with a file to
clear the slight recess in the B&M mouldings.

Slightly posher version could be made by putting a long stud longways
through the space-grip bar, and use a couple of nuts on the end to space the
lamp off the end. If doing this, I'd shorten the length of the space-grip
bar. If you also added a couple of the domed washers fitted to many MTB
brake blocks, the lamp would be fine-tunable for left-right until the nuts
are tightened.

Practical suggestions, were it not for the fact that I haven't been
given a Space Grip :-(

Googling leads me to places like
http://www.m-gineering.nl/sondualg.htm and
http://www.peterwhitecycles.com/light-mounts.asp where the most
convincing candidate is the R&M mount. However, I draw a blank
trying to find a source nearer home.

Brendan
--
Brendan Halpin, Department of Sociology, University of Limerick, Ireland
Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F2-025 x 3147
[email hidden] http://www.ul.ie/sociology/brendan.halpin.html

Brendan Halpin said:

Nigel Cliffe said:

I made one using a Minoura Space Grip I was given.

Approx 0.5in long pice of aluminium angle bolted into the bar of the
space grip (guess at M5 nut and bolt), and the other face of angle
drilled to clear the bolt of the B&M lamp. Rounded the corners off
with a file to clear the slight recess in the B&M mouldings.

Slightly posher version could be made by putting a long stud longways
through the space-grip bar, and use a couple of nuts on the end to
space the lamp off the end. If doing this, I'd shorten the length of
the space-grip bar. If you also added a couple of the domed washers
fitted to many MTB brake blocks, the lamp would be fine-tunable for
left-right until the nuts are tightened.

Practical suggestions, were it not for the fact that I haven't been
given a Space Grip :-(

Googling leads me to places like
http://www.m-gineering.nl/sondualg.htm and
http://www.peterwhitecycles.com/light-mounts.asp where the most
convincing candidate is the R&M mount. However, I draw a blank
trying to find a source nearer home.

I wouldn't want to state my reputation on it, but I'd be tempted to try the
bracket from many a "free" reflector fitted to bikes at point of sale. The
bracket is in two parts, a collar which is bolted around a tube (eg seat
tube) and second part which carries the reflector. I'd try to do without
the second part if it would fit, then add some studding (with spacing nuts
and washers) to carry the lamps. It would look somewhat similar to the
pictures in the first URL.

Or a Space Grip is about a tenner in the shops.

Another cheap solution is made from a flat aluminium coat hanger (as used in
a million schools and similar buildings). Can make a very strong bracket
for mounting behind the bolts of a dual-pivot brake (friend made one for his
winter bike).

- Nigel

--
Nigel Cliffe,
Webmaster at http://www.2mm.org.uk/