Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

Blackburn Multi Mirror: Replacement Parts Or Fix?

111 views
Skip to first unread message

(PeteCresswell)

unread,
Jan 22, 2013, 9:47:09 AM1/22/13
to
As in http://tinyurl.com/aauzc9z

Bike falls over, this part breaks maybe half the time:
http://tinyurl.com/aauzc9z I"m pretty sure the last one broke
even though it was already folded inwards.

There seems tb a tension between reducing the ease of
articulation enough that the mirror stays adjusted and it's
resistance to breaking.

I'm accumulating a box full of broken connectors as shown in the
second link. At twenty bucks a pop, it's getting expensive.
Yeah, Campmor has them for ten.... plus shipping... but still..

Mirror works well visually - just doesn't hold up over time.

The person I talked to at Blackburn didn't think there were
replacement parts available - which I found surprising
considering the vulnerability of the part.

Can anybody think of a repair methodology for this part? I'm
thinking something that would hold up well enough to permit use
and be re-repairable when it breaks again.

I've seen devices at Harbor Freight that are touted as "Plastic
Welders" but they don't look like they would work at such a small
scale.
--
Pete Cresswell

(PeteCresswell)

unread,
Jan 22, 2013, 9:55:10 AM1/22/13
to
Per (PeteCresswell):
>Bike falls over, this part breaks maybe half the time:
>http://tinyurl.com/aauzc9z

Oops.... link should have been:
http://tinyurl.com/b4p9vah
--
Pete Cresswell

Sir Ridesalot

unread,
Jan 22, 2013, 10:17:44 AM1/22/13
to
How about drilling out the U shaped piece to accept a T nut from the backside and then screwing the broken pieceonto the T nust? Maybe even do that on a new one before it breaks.

Cheers
> Pete Cresswell

Peter Howard

unread,
Jan 22, 2013, 10:32:16 AM1/22/13
to

"(PeteCresswell)" <x...@y.Invalid> wrote in message
news:e39tf8l8hg6t8ft08...@4ax.com...
JB Weld epoxy in a tube. Will stick anything.
But the very best solution is https://www.mirrycle.com/index.php
Every component part of the mirrycle mirror is individually and
inexpensively available by mail direct from the manufacturer.
PH


sms

unread,
Jan 22, 2013, 10:56:09 AM1/22/13
to
Should be able to drill it and press fit a piece of steel rod or a thin
bolt, with some cyanoacrylate on it.

But of course the best thing to do would to be buy a Mirrycle.

(PeteCresswell)

unread,
Jan 22, 2013, 11:15:45 AM1/22/13
to
Per sms:
>
>But of course the best thing to do would to be buy a Mirrycle.

Per
http://www.rei.com/product/723518/mirrycle-mountain-bike-mirror
the parts certainly look more robust.

But I don't see any wiggle room for absorbing energy when the
bike falls over on to the mirror side.

Any experience with this?
--
Pete Cresswell

Frank Krygowski

unread,
Jan 22, 2013, 11:31:54 AM1/22/13
to
Something like that might be possible. One challenge is that the
broken piece seems to have a pretty thin plus-shaped (+) cross
section. If you could accurately drill lengthwise into the center of
the "+" with a 7/64" drill, a #6-32 screw would probably cut its own
threads into it. A clearance hole (9/64") in the U piece would allow
you to send in a long 6-32 screw starting from the inside of the U.

I've successfully done some plastic welding, but I find it very
tricky, and IME the repair is never as strong as the original. If you
go that route, I'd suggest melting in as much reinforcing plastic as
you possibly can, far beyond just recreating the original cross
section. Maybe the screw plus the weld would work?

There are lots of plastics that adhesives won't bond. Anything
polyethylene-based is very difficult.

I'd also attack the problem by prevention. First, would it help if
you swung the mirror inward when you park the bike?

Second, what can you do to prevent your bike from falling over? FWIW,
I don't use kickstands, for that reason. Instead I find something to
lean the bike against, and I lock the front brake.

- Frank Krygowski

sms

unread,
Jan 22, 2013, 12:00:53 PM1/22/13
to
I had one break when my bike fell over on Chain of Craters Road in
Hawaii in 1983.

Sir Ridesalot

unread,
Jan 22, 2013, 2:37:37 PM1/22/13
to
Another consideration is to get an eyeglass mounted mirror or, dare I say it, a helmet mounted mirror. They are small with great fields of view and since they are off the bike they are far less prone to being damaged. An other advantage is that they allow you to scan the entire area behind you simply by moving your head a bit. I really like mine because I can flick my eyes to it and see what's behind me even as I continue to look at traffic ahead of me. I like the one I have because it shows vehicles behing me to be much closer than my Mirror Cycle mirrors do.

Cheers

datakoll

unread,
Jan 22, 2013, 3:24:39 PM1/22/13
to
WHAT 'plastic' compound izzit ?

try NAPA.

search net for types plastic. types glue. there's a glue wiki and glue infom sites.

think 'splint' splint then tape, splint-glueable tape (like fiberglass)-epoxy.

its too light for pics. I use the small round miror on stalk attaches to glasses temples. The plastic isnot worth shit. Better plastics are found in cereal boxes.

for this nsubstandard, tape is the answer.

datakoll

unread,
Jan 22, 2013, 6:36:40 PM1/22/13
to
unh I always wondered what fool would buy one.

why did you ?

buy a helmet mirror and a brain transplant maybe with the tibetian monkeys bro

Andre Jute

unread,
Jan 22, 2013, 7:43:38 PM1/22/13
to
I used to smash Zefal Dooback (apparently no long listed), not from the bike falling over (my bike has a proper stand) but because there's a narrow footbridge where I would arrive at speed and if I misjudged the entry by as much as an inch, bye-bye to another bar-end mirror. Eventually I got fed up with spending between thirty and forty smackers to get he thing here from France, and started using a Cheap Cateye BM 300G Race Mirror instead, with excellent results. In fact, I like this cheap mirror so much, I give it to the pedalpals so that they can see when a fast cyclist on a BRG bike with gold coachlines comes up behind them to pass. They're so durable that it's a long time since I bought any, so I found them at the third of my regular parts pushers I tried: http://www.wiggle.co.uk/cateye-bm-300g-race-mirror/ The trick if you have a short grip because of a hub gear or other rotatry gear control and thus not much hand space, is to mount the mirror upside down, as at http://coolmainpress.com/ajwriting/?s=Schloss Also good at the end of drops.

Andre Jute

(PeteCresswell)

unread,
Jan 22, 2013, 7:52:28 PM1/22/13
to
Per Sir Ridesalot:
>Another consideration is to get an eyeglass mounted mirror or, dare I say it, a helmet mounted mirror. They are small with great fields of view and since they are off the bike they are far less prone to being damaged. An other advantage is that they allow you to scan the entire area behind you simply by moving your head a bit. I really like mine because I can flick my eyes to it and see what's behind me even as I continue to look at traffic ahead of me.

I actually have a couple that I bought for the reasons you cite.

Maybe I need to give them some more time, but for the time I
tried them I just couldn't get the hang of it.

OTOH, I abandoned bifocals after almost getting run over by a bus
the first time I went out walking with them.... -)
--
Pete Cresswell

Tom $herman

unread,
Jan 22, 2013, 9:19:13 PM1/22/13
to
My Mirrycle mirrors have survived several falls with no damage, but then
they are on proper recumbent bicycles, and not nose-bleed height upright
bicycles.

--
Tom $herman

Sir Ridesalot

unread,
Jan 22, 2013, 10:40:31 PM1/22/13
to
What post are you replying to?

Cheers

AMuzi

unread,
Jan 22, 2013, 10:46:51 PM1/22/13
to
You questioned our oracle?
The gods shall not smile on you.

--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971


Sir Ridesalot

unread,
Jan 22, 2013, 11:19:38 PM1/22/13
to
If you have a wind trainer or access to one they are fantastic to ride as you practice adjusting either an eyeglass or helmet mounted mirror. I find that it onlt takes a second or two to reposition my mirror if I bump it. I far prefer the view I get in my helmet mirror than I do even the Mirror Cycle one because vehicles in the helmet mirror look to be twice as close as they appear in the Mirror Cycle mirror. This means too that vehicles can be seen sooner in the helmet mirror than they can in the Mirror Cycle, or any similar mirror with the same type of wide angle mirror field of view type as the Mirror Cycle. One other thing, my experience shows that the eyeglass or helmet mirror is not obscured by thick clothing (sleeves) as the Mirror Cycle mirrors on my vintage touring bike with non-aero brake levers.

Cheers

datakoll

unread,
Jan 23, 2013, 7:57:31 AM1/23/13
to
wait doahn throwem on the fire...


the BBurn bar mirror izza joke.

in the category of the Interstate roof mattress.

scrape up a coupla piueces thin plywood, epoxy a mirror to it, spar v arnish, n find a flexible stalk if you needa flexible stalk. Hose clamp to the bar.

then destroying the oddly placed mirror woahn cost as much

yawl gotta look down into the mirror n away from the road surface using it...as a mirror


easier using it as a bumper....

yawl build walls where you dwell. ???

datakoll

unread,
Jan 23, 2013, 8:25:39 AM1/23/13
to
every 9 months or so GPP strikes.

the BBurn bar mirror ( where it was consieved )is a primo GP device.

my first reaction was reaching for a Goo Image of an ol eastern Euro woman riding an Amsterdam Speedster to market for a coupla wrinkled rutabagers but then I didn wanna insult creswell so I went on to see what Hahn was up to.

datakoll

unread,
Jan 23, 2013, 8:44:06 AM1/23/13
to
nnnnnnnnnnn


in the LETS REPAINT THE FERRARI bin

search for: flexeble supports

OUAT a thick aluminum ground wire was sold maybe useable inserted into a poly tube...cheapo

but forgetabbout threading the inside bar...$$$

datakoll

unread,
Jan 23, 2013, 8:45:48 AM1/23/13
to
butbutbut one could, if driven or obsessed, glue a coupler say 1/4-20 into the bar end with uh 3m marine silicone fast cure from Home depot

datakoll

unread,
Jan 24, 2013, 7:06:47 AM1/24/13
to
On Wednesday, January 23, 2013 8:45:48 AM UTC-5, datakoll wrote:
> butbutbut one could, if driven or obsessed, glue a coupler say 1/4-20 into the bar end with uh 3m marine silicone fast cure from Home depot

__ _ _ _ _ _ _ _

http://www.mcmaster.com/?m=true#flexible-shaft-grinders/=l692z9

see column left

datakoll

unread,
Jan 24, 2013, 7:10:07 AM1/24/13
to
nnnnnn

ask for flexible in search duhduhduh
0 new messages