Wireless Cycle Computers and Rear View Mirror Helmet?!?

Mark Thompson said:

Also, are wireless cycle computers any good? I've heard comments about them misreading distance
and speed - have later models overcome this? Is this what 'excellent noise immunity' means? What
sort of accuracy can I expect from them?

We have four on our bikes. Of these, one under-records, clearly missing pulses under some
conditions. It's one we fitted very recently and it's probable we can sort this by adjusting it.

Our two older ones (both Specialized) are six years old and are both still on their original
batteries. They've been great - reliable, easy to use, no criticisms at all. The two new ones are
Cateyes and, as I say, one of these is not yet working right.

--
[email hidden] (Simon Brooke) jasmine.org.uk~simonOpen ↗

See one nuclear war, you've seen them all.

Mark Thompson said:

Am thinking of getting a helmet but the annoyance factor has stopped me so far. These may change
my mind - has anyone tried 'em?

edinburgh-bicycle.co.uksearchresults.cfmOpen ↗

Quoted message said:

? They're helmets with an integrated rear view mirror. It's not April so I presume they really
do exist.

Search for "Reevu" via groups.google.comgroups.google.comOpen ↗ . I would be very concerned about the mirror
obscuring any of my forwards vision. Must partly depend on type of bike and riding position though.

~PB

Mark Thompson said:

They're helmets with an integrated rear view mirror. It's not April so I presume they really
do exist.

Look here:-

cgi.ebay.co.ukeBayISAPI.dllOpen ↗

There are a couple on ebay.

You glance up at the inside of the peak to see behind.

Tom replace deadspam with btinternet to reply Tom Anderson Leighton Buzzard England

"Mark Thompson" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Am thinking of getting a helmet but the annoyance factor has stopped me so far. These may change
my mind - has anyone tried 'em?
edinburgh-bicycle.co.uksearchresults.cfmOpen ↗

?

Quoted message said:

They're helmets with an integrated rear view mirror. It's not April so I presume they really
do exist.

Yes they do, and I have tried one (briefly) - you glance upwards and get a sort of "head up display"
a bit like a fighter aircraft ! They would only seem to work when riding in an upright posture, say
like riding a hybrid.

IMHO the concept is interesting but does not really work that well - YES you get an indication of
what is behind you but not sufficent to avoid the glance over the shoulder before any changes of
direction.

My own decision was to get a better quality helmet for less money and a Cateye bar end mirror.

RG

My VDO wireless computer works fine EXCEPT often records a rogue max speed

Mark Thompson said:

Am thinking of getting a helmet but the annoyance factor has stopped me so far. These may change
my mind - has anyone tried 'em?
edinburgh-bicycle.co.uksearchresults.cfmOpen ↗ ? They're helmets with
an integrated rear view mirror. It's not April so I presume they really do exist.

Also, are wireless cycle computers any good? I've heard comments about them misreading distance
and speed - have later models overcome this? Is this what 'excellent noise immunity' means? What
sort of accuracy can I expect from them?

The Sigma one works very well, but has a ball bearing that rattles around to tell the computer
you're moving (presumably the receiver switches itself off if you're not, in order to save
batteries). This makes you think your bike is falling apart :-(

Batteries last a long time BUT when you come to replace them there are 3 x LR44 and 1 x CR2032. I'd
have the wired version if I bought another. In fact, I may get the wired mount for mine, just for a
quiet life. Originally I wanted cordless because I already had a load of dynamo wiring on the fork,
but I don't think this interferes at all.

Is your preference for wire mainly because of the ball bearing thingy or the vast amount of
batteries?

Quoted message said:

The Sigma one works very well, but has a ball bearing that rattles around to tell the computer
you're moving (presumably the receiver switches itself off if you're not, in order to save
batteries). This makes you think your bike is falling apart :-(

Batteries last a long time BUT when you come to replace them there are 3 x LR44 and 1 x CR2032.
I'd have the wired version if I bought another. In fact, I may get the wired mount for mine, just
for a quiet life. Originally I wanted cordless because I already had a load of dynamo wiring on
the fork, but I don't think this interferes at all.

Zog The Undeniable said:

Mark Thompson said:

Am thinking of getting a helmet but the annoyance factor has stopped me so far. These may change
my mind - has anyone tried 'em?
edinburgh-bicycle.co.uksearchresults.cfmOpen ↗ ? They're helmets with
an integrated rear view mirror. It's not April so I presume they really do exist. Also, are
wireless cycle computers any good? I've heard comments about them

Quoted message said:

misreading distance and speed - have later models overcome this? Is this what 'excellent noise
immunity' means? What sort of accuracy can I expect from them?

The Sigma one works very well, but has a ball bearing that rattles around to tell the computer
you're moving (presumably the receiver switches itself off if you're not, in order to save
batteries). This makes you think your bike is falling apart :-(

Neither our Specializeds nor our Cateyes make any significant noise. You can hust hear the Cateyes
'click' if you put your ear close to the fork and spin the wheel. Our Specializeds - Juliette's hill
bike and my road bike - are both six years old, have never missed a beat, and are still on their
original batteries. Brilliant equipment I cannot fault. The Cateye on my new hillbike has been
flawless so far. The Cateye on Juliette's road bike has occasionally under-recorded. I've adjusted
it this morning to see if that will remedy the problem.

There's no way I'd switch to wired ones - there's too many wires and cables on a bike as it is.

--
[email hidden] (Simon Brooke) jasmine.org.uk~simonOpen ↗

See one nuclear war, you've seen them all.

Mark Thompson said:

Is your preference for wire mainly because of the ball bearing thingy or the vast amount of
batteries?

Both - plus the cordless mount is very big and ugly. In fact, I've just ordered wired mounts (the
computer is the same and will go on either).

Obviously, my comments only apply to Sigma.

Quoted message said:

I've adjusted it this morning to see if that will remedy the problem.

What does this involve? Just twiddling the pickup dooberry?

Quoted message said:

There's no way I'd switch to wired ones - there's too many wires and cables on a bike as it is.

Amen.

Mark Thompson said:

Quoted message said:

I've adjusted it this morning to see if that will remedy the problem.

What does this involve? Just twiddling the pickup dooberry?

Well, we can hear the pickup give a faint 'click' each rotation so we formed the hypothesis that
that probably wasn't the problem; so we've moved the instrument head to the same side of the the
bike as the pickup, to bring them slightly closer, and we'll see how that goes.

However, the head is supposed to work fine up to 700mm from the pickup and it's much less than that,
whereas the pickup is supposed to be within 5mm of the magnet as it goes past and it's probably more
than that, so I may have to fiddle with that as well.

Still, it isn't as interesting as it was getting one to work on the 'lefty' one sided fork on my
Cannondale - that _really_ took ingenuity!

--
[email hidden] (Simon Brooke) jasmine.org.uk~simonOpen ↗

See one nuclear war, you've seen them all.