…yeah I got it – thanks.

I was particularly after one with the heavy duty bolted axle (like the one on ebay) as I have a bolted one on my singlespeed and it feels really ‘solid’ – the QR one on my other bike seems less ‘secure’ in comparison, and thats on a hardtail – I have tried a couple of different QR’s too. This one is for a Tracer build (which is taking forever now with the price hikes recently) and I wanted to have bolt on wheels at each end. So I am happy today.

Hope you get one sorted out soon – you could always share the link with all on STW – I do need a 20mm front too?

All the best

You sound a little bitter over there – sorry man.

Glad you have found some ‘cheaper and better’ about 5 mins after losing out on the ebay hub – coincedence?

Anyway, £220 was my only, and top bid, I appear to be lucky (or not) tonight

Actually, I am sorry, with a few minutes hindsight I guess I sound like I am gloating, that wasn’t my intention, please accept my apologies for that.

Coolhandluke – sorry man, I had to have that hub!

Summit trail is excellent – but maybe a little short. The Continental trail covers quite a bit of the Summit trail but also some more ‘wilderness’ type riding. I like close by and my choice would be the summit – more fun and if you are feelign excitable you could always do the fun bits twice.

Went there yesterday – excellent riding and the final descent(s) were worth the boring slog up the hills on the Raven trail (just).

idrew – thanks for that, I can’t decide between Float 32 RLC’s (140mm) or Float 36 RC2’s (160mm) – maybe a Talas could be the answer?!

I will be ordering one of these frames in a couple of months – saving up and buying the other bits in the mean time.

idrew – What forks are those? Travel?

Cheers, Jon

Exercise physiologist/University ‘teacher’/researcher

Kaiser – I have an XTR shadow mech waiting to be fitted too – but alas the new frome is some months away.

MTT – We have a few SRM systems here (I work at a University) and if I am honest the SRM’s in my office are not working. We have just wired ones for road and mountain bikes at present but we are waiting on some new wired units from Germany. What I use mainly, for ‘training’ and research is a Lode ergometer in the labs – they are the nuts (but 12k each)

Simon – ‘harder’ is a touch one to perceive, it does contract slightly more forcefully but also the valves are open for a fraction longer, allowing greater expulsion of blood per beat

ro – I would take a hard look at the work of Tim Noakes – do you really believe in his ‘central governor hypothesis’? He makes some interesting points in his work, and defends them strongly, but it is not accepted in all circles – even today in the Journal of Applied Physiology there is a point:counterpoint argument about this very issue.

MTT – there are some SRM’s within touching distance of my desk!

would you like to work for me? i have seminars to run…

I can always be tempted by freelance work…

The principal purpose of heart rate monitoring is to give a indication of cardiovascular effort (and therefore effort) during rest and/or exercise. ‘cardiac output’ i.e. the product of heart rate and stroke volume is the true measure, but it is somewhat tricky to estimate (and even harder to measure) stroke volume without a lab or hospital at your disposal. And so, for everyday use we simply rely upon the easy measurement of heart rate.

However, the human body has the unconcious ‘choice’ to either pump more frequently (increased HR) or to pump a greater volume of blood (increased stroke volume) to match the demand for oxygen, both at rest and during exercise. Without getting into the determinants of metabolic control, resting HR provides a subjective indication of ‘fitness’ – the lower the better. But as with our fitness levels, it is impossible to compare one person to another simply in terms of one variable, such as heart rate, as we each would have different (unmeasured) stroke volumes, and hence cardiac outputs.

With hindsight, I am not sure why I posted that? Maybe just to point out that there are other exercise physiologists who frequent this site who could add some value to the ‘discussion’ that was taking place at the start of this post, but the post seems to have gone dead now.

ro – now my problem is that I end up getting stuck on the net rather then doning my work – modelling VO2 kinetic response profiles (which I am sure you will know all about), the joys of time delays, time constants and amplitudes!

ro – if you are so educated why have you got yourself into a slagging match on an internet forum? Having a barny over ‘nothing’ is not big or clever – you boys and girls should kiss and make up!