Turbo Trainer Advice

Cheers! Just ordered of CR, same price as Rose

I've tried and failed on here to get a 2nd hand 11spd Shimano rear for my turbo, any suggestions for cheapest alternative to buy?

http://www.tweekscycles.com/Product.do?method=view&n=3600&g=742752&p=742764&d=124&c=4&l=2&utm_source=Google&utm_medium=Base&utm_campaign=Road%20Bike%20Wheels&gclid=CKKw0JL5nMkCFarpwgodeOYDaA

I posted this in Training/fitness but it looks like it's more relevant to here - for the record I have an Elite Hydro-Mag trainer.

I did my TR ftp (2x8) test last night and totally messed it up as I went too hard in the first interval had nothing left for the second one. I got what I feel is quite an optimistic ftp and was wondering if many people have done much using virtual power and a real power meter? Is it normal for virtual power to over estimate?

I know as long as it's consistent then it's fine to train with, but obviously I'm curious. If anyone is willing to lend me a power meter for an evening (wheel or pedal I guess) I will re do the test to see what the difference is!

I got what I feel is quite an optimistic ftp and was wondering if many people have done much using virtual power and a real power meter? Is it normal for virtual power to over estimate?

I think @TTM came to that conclusion, after switching from virtual power to an actual power meter.

I used TR with a KK Road Machine for quite a while and found that it did overestimate power. Every trainer is different though, so it's hard to say if this is the case for all.

how much did you find it overestimated by?

It was about 15 watts I think. It was consistent along the whole power curve which I was impressed by.

Having just looked at your ftp test, @cjr. Either something isn't quite right, or you're an absolute beast!

Holding an average of 500w for 8 minutes O.o

*cries *

Sounds like a virtual power anomaly.

What was the FTP for the test?

@TTM it came out at 387 (500 average for first 8min, 372 for the second)
If it's consistent, I'm not too worried as I can still train based on it, but it would be nice to know if I am in fact a beast or the more likely scenario that TR is flattering me.

TR support says my turbo does seem to overestimate power but gave me no indication of by how much.

I'm a bit confused by the result, as those averages for each 8 min interval should give an FTP nearer the 400 mark.

If not too personal, what do you weigh in at?

Anyway, if those numbers are accurate then they are scary.

That was NP I think so may have accounted for the difference. (.9 of the average would have been 392 i think)
Weight wise, I'm around 83kg, and 5'10.5 so I'm no hill climber.

I see. Well then that all sounds quite reasonable and the numbers are very good. W/kg at about 4.7 is strong.

I totally understand about wanting to verify them with a real PM, but as you've already said, as long as you have repeatable and consistent data to work with then there's no real need. Good luck with the training.

4.7 Watts per KG, fuggin hell

So to get your FTP you take 90% of 2 x 8 minutes, which should be the same as 95% of a 20 minute test?

Also, 4.7w/kg is awesome, great work.

Virtual doping!
If i can borrow a power meter I will return with an update, otherwise I guess I will just let people think I'm stronger than I am!

I broke my fucked old turbo a while ago, and am looking for a shiny new one. This has just come out, and seem pretty decent for the money.

http://www.bkool.com/turbo-trainer/bkool-one

Question: it seems to be transmitting some kind of power data, with the correct dongles or whatever, would I be able to participate in Zwift, rather then the manufacturers own simulation?

bkool doesent work with zwift.

Tacx Vortex from Bike24. Nothing else.

Cheapest ANT+ FE C fluid trainer on market.
ANT+ FE C = your trainer will be controlled by apps like Zwift.

If your budget is tighter then Satori. All of that minus fluid (magnetic) and no auto change/app control i.e. it comes with a knob for handlebar for resistance.

Thanks for the advice, that seems like a good trainer for the money.

tbh my budget is 'I haven't had a job since July' so I'm realistically just looking for a name for the wish list.

Well bkool will be waste of money. Go through this: http://www.dcrainmaker.com/2014/11/2014-winter-trainer-recommendations.html

and

http://www.dcrainmaker.com/2015/06/trainer-profile-zwifttrainerroadkinomap.html

I can't see any other manufacturer than Tacx with a fully open Ant+ FE C protocol.

Can definitely +1 the vortex, been using it for a couple weeks now and really impressed for £230

I have no di2 battery. So I'm currently singlespeeding everything.

I also haven't found a fan.

Plus sweating out my bibs is destroying my ass.

It's all fucking miserable.

Time to put the turbo trainer outside.

I have a covered patio area. So its tempting.

Raining sideways currently though.

Want more snow!