View Full Version : turbo question
I have just bought a turbo and computer which is fantastic
for those nights when the missus goes to work and the kids
are in bed and I can ride along to taped Eurosport. Only
problem is all the workouts I have found are cadence based
and my computer has just about everything but cadence. Is
there an easy to work out the cadence from say the speed and
watts or gradient etc or does anyone have good workouts
based on a different measure or does it not matter?
Ta
"phenian" <ph3n1an-conevert-numbers@iclway.co.uk> wrote
> I have just bought a turbo and computer which is fantastic
It is, until ya get a puncture, gARY
--
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http://www.justservices.com/9ukp.html
> for those nights
> when the missus goes to work and the kids are in bed and I can ride along
to
> taped Eurosport.
> Only problem is all the workouts I have found are cadence based and my
> computer has just about everything but cadence. Is there an easy to work
out
> the cadence from say the speed and watts or gradient etc or does anyone
have
> good workouts based on a different measure or does it not matter?
>
> Ta
phenian ph3n1an-conevert-numbers@iclway.co.uk opined the
following...
> Only problem is all the workouts I have found are cadence
> based and my computer has just about everything but
> cadence. Is there an easy to work out the cadence from
> say the speed and watts or gradient etc or does anyone
> have good workouts based on a different measure or does
> it not matter?
Do you have a heart rate monitor. Training to target heart
rates seems to be a good system. Alternatively, you can work
out the cadence from your speed and gear. It's too late at
night for me to contemplate the maths, but I'm sure someone
here will oblige with a simple equation.
Jon
> Only problem is all the workouts I have found are cadence
> based and my computer has just about everything but
> cadence. Is there an easy to work
out
> the cadence from say the speed and watts or gradient etc
> or does anyone
have
> good workouts based on a different measure or does it
> not matter?
You can use a heart rate monitor in conjunction with a heart
rate monitor based training programme/book.
You could also seek to purchase a computer with a cadence
function if you don't want to calculate cadene rates from
the gearing and speeds. You certainly can not work out
cadence from watts or gradient.
Enjoy the turbo sessions...they bored me sh#@less and I
quickly resorted to the road to get the miles in.
Anyone fancy a barely use Tacx Turbo trainer...make me a
sensible offer.
phenian wrote:
> Only problem is all the workouts I have found are cadence
> based and my computer has just about everything but
> cadence. Is there an easy to work out the cadence from say
> the speed and watts or gradient etc
Watch the clock, count the number of crank revs in 15
seconds, mulitiply by 4.
~PB
"vernon levy" <not@home.net> writes:
> You could also seek to purchase a computer with a cadence
> function if you don't want to calculate cadene rates from
> the gearing and speeds. You certainly can not work out
> cadence from watts or gradient.
This reminds me. A week ago someone nicked the contents of
the small under-saddle bag on my bike (while it was in the
supposedly moderately secure car park at work, too, which is
a bit depressing to contemplate): they got two tyre levers,
an inner tube, a box spanner and my cateye astrale. Who
wants a cateye astrale with no mounting kit?
Well, actually, now, I do. But the bike shops I checked
(Evans at Waterloo, and Decathlon) don't seem to have such
a thing any more: the Astrale 8 is a different shape.
Anyone know if it uses the same sensors and mounting points
so I don't have to do all that tedious mcking around with
cable ties again? If not and I have to rewire anyway, are
there other computers (pref. sub £30) with cadence that I
should look at?
-dan
--
"please make sure that the person is your friend before
you confirm"
Only problem is all the workouts I have found are cadence
based and my
>computer has just about everything but cadence. Is there an
>easy to work out the cadence from say the speed and watts
>or gradient etc or does anyone have good workouts based on
>a different measure or does it not matter?
Ta
If you want a really good workout, this is what I do when it
is too bad to go out. I warm up on the trainer for at least
15 minutes at a cadence I am comfortable with. It is
important to keep the same cadence throughout the whole warm
up as it is the cadence you will try to maintain in the
"Work" stage of the session. After teh warm up, just click
up one gear and hold the cadence for two minutes, then up
another gear, untill you cannot maintain the cadence you
warmed up with. I personally drop down three gears and
recover before going in to the warm down proper for 15
minutes. Both warm up and down are VERY important. If you do
it to your absolute max, you will just be able to walk over
to the fridge for a well earned beer! Good luck Ro
P.S. This training method has kept my condition over the
whole winter here in New Zealand, and I was in my top
form at the start of out racing season.I have however
lost some form through the season. Guess I better get
back to the trainer!!
Daniel Barlow dan@telent.net opined the following...
> This reminds me. A week ago someone nicked the contents of
> the small under-saddle bag on my bike (while it was in the
> supposedly moderately secure car park at work, too, which
> is a bit depressing to contemplate): they got two tyre
> levers, an inner tube, a box spanner and my cateye
> astrale. Who wants a cateye astrale with no mounting kit?
>=20
> Well, actually, now, I do. But the bike shops I checked
> (Evans at Waterloo, and Decathlon) don't seem to have such
> a thing any more: the Astrale 8 is a different shape.
> Anyone know if it uses the same sensors and mounting
> points so I don't have to do all that tedious mcking
> around with cable ties again? If not and I have to rewire
> anyway, are there other computers (pref. sub =A330) with
> cadence that I should look at?
If it does fit, I have a mounting kit for the new Astrale 8.
It seems to=20 have a slightly dodgy clip which resulted in
my 2 month old Astrale=20 leaving my bike at around 20mph
and by the time I'd retraced my route=20 and found it, it
had been run over! Not wanting to take the risk with a=20
new one, I abandoned cadence and put an Endura 8 on instead.
Jon
"Daniel Barlow" <dan@telent.net> wrote in message
>
> Well, actually, now, I do. But the bike shops I checked
> (Evans at Waterloo, and Decathlon) don't seem to have such
> a thing any more: the Astrale 8 is a different shape.
> Anyone know if it uses the same sensors and mounting
> points so I don't have to do all that tedious mcking
> around with cable ties again?
I purchased an Astrale 8 late last year. As I'd purchased it
specifically for use on a trainer, I was disappointed as it
didn't come with a rear wheel sensor, only a front one.
Cateye eventually came through and sent me the mounting kit
from the previous years model, which works fine with the
Astrale 8. I'm not sure whether the previous model was an
Astrale 7 or just plain Astrale?
I think you'll probably be OK, but I'd suggest mailing
Cateye in the US to confirm this, they were very quick to
respond when I contacted them.
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"Pete Biggs" <pclemantine{remove_fruit}@biggs.tc> wrote in message news:<c6s1go$fgi8s$1@ID-144931.news.uni-berlin.de>...
> phenian wrote:
> > Only problem is all the workouts I have found are
> > cadence based and my computer has just about everything
> > but cadence. Is there an easy to work out the cadence
> > from say the speed and watts or gradient etc
>
> Watch the clock, count the number of crank revs in 15
> seconds, mulitiply by 4.
Or count for 6 seconds and multiply by 10 for a rough value.
If it's a single cadence over the session you could also set
a metronome and pedal to that. It will of course drive you
barmy, but as you're on the turbo anyway you'll be halfway
there already.
--
Dave...
"Derek Grebe" <spamfritter@damnspam.com> writes:
> I purchased an Astrale 8 late last year. As I'd purchased
> it specifically for use on a trainer, I was disappointed
> as it didn't come with a rear wheel sensor, only a front
> one. Cateye eventually came through and sent me the
> mounting kit from the previous years model, which works
> fine with the Astrale 8. I'm not sure whether the previous
> model was an Astrale 7 or just plain Astrale?
I did some nosing around the usual mail order places this
afternoon, and eventually found that Evans are doing the rear-
sensor Astrale 8 for £30 and the front-sensor version for a
special price of £20 - seems that Cateye are now producing
both versions. The assistant in Evans Waterloo branch
helpfully looked through all the boxes he had in stock for
me, and so I now have a new Astrale 8 complete with a front
sensor kit that I hope not to need. Not that I'm
terrifically opposed to it - I have a perfectly good front
wheel anyway - just that all that mucking around with cable
ties is not really my idea of a fun time.
-dan
--
"please make sure that the person is your friend before
you confirm"
phenian wrote:
> I have just bought a turbo and computer which is
> fantastic for those nights when the missus goes to work
> and the kids are in bed and I can ride along to taped
> Eurosport. Only problem is all the workouts I have found
> are cadence based and my computer has just about
> everything but cadence. Is there an easy to work out the
> cadence from say the speed and watts or gradient etc or
> does anyone have good workouts based on a different
> measure or does it not matter?
Just count pedal revs. I ride at the same cadence all the
time anyway (apart from sprints) - it comes out between
100-105 rpm.
I do three different sessions depending on my mood and the
time of year:
1) Road miles replacement: 40 minutes at 42 x 17 (about
19mph). Deadly dull but keeps things ticking over in
winter. 40 mins is all my bottom can put up with -
steady state turbo work is uncomfortable because I
rarely stand up. HR 145-155 (it rises as I get hotter
towards the end).
2) TT pace: 10 mins at 42 x 17 then 20 minutes at 52 x 19
(or 52 x 17 if I'm feeling strong) then 10 minutes at 42
x 17. This builds up a bit of speed. HR 165-175 during
the fast bit.
3) Sprint intervals: 10 mins at 42 x 17 then 52 x 13 all-out
sprint for as long as I can stand it, dropping back to 42
x 17 when the lactic acid gets me after 15-30 seconds.
After 3 mins repeat another 6-10 times. Do a 10 mins 42 x
17 warm down at the end. HR up to 175 - the intervals are
too short to get anywhere near maximum. This speeds me up
quite a bit but is for summer only, and not very often.
Intervals are very hard on your nerves and I've had the
shakes afterwards.
Note that these gears are a lot lower than you might find
recommended in C+, but C+ are usually assuming low cadences
of 70-80 rpm.
My turbo is an old-school Tacx T1400 with a traditional fan.
It's incredibly noisy, especially for interval training, but
it does replicate the speed-power curve of road riding a lot
better than a mag trainer.
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