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Inaccuracy of Pro 300PT indoorbike with powertap due heating up flywheel - Page 4

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  #46  
Old 03-25.-2007
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beerco
Default Re: Inaccuracy of Pro 300PT indoorbike with powertap due heating up flywheel
Quote:
Originally Posted by PaulMD
I received my new flywheel pretty fast (on tuesday morning). But I had no time to post here or to install the flywheel. Yesterday I installed the flywheel and did a 20 minute ride and I had no torque drift! Before and after the ride the torque was 0 inch pounds.
Most excellent. Be sure to post your results on all of the lists you've posted this issue to.

-Andy B.
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  #47  
Old 03-25.-2007
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wiredued is on a distinguished road
Default Re: Inaccuracy of Pro 300PT indoorbike with powertap due heating up flywheel
That's great news! I hope your 1 hour ride of truth goes well for you...striveth for the mastery...

Quote:
Originally Posted by PaulMD
I received my new flywheel pretty fast (on tuesday morning). But I had no time to post here or to install the flywheel. Yesterday I installed the flywheel and did a 20 minute ride and I had no torque drift! Before and after the ride the torque was 0 inch pounds.

So my defective powertap hub is replaced with a good one

The downside of a accurate powertap is that my power is lower. I will post my new FTP when I have done a 60 minute timetrial on the Pro 300PT with the new flywheel.

@cPritch67: Torque drift is not normal for the 300PT. I think you should contact Saris.
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  #48  
Old 03-25.-2007
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Join Date: Apr 2004
Posts: 284
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cPritch67
Default Re: Inaccuracy of Pro 300PT indoorbike with powertap due heating up flywheel
Quote:
Originally Posted by PaulMD
I received my new flywheel pretty fast (on tuesday morning). But I had no time to post here or to install the flywheel. Yesterday I installed the flywheel and did a 20 minute ride and I had no torque drift! Before and after the ride the torque was 0 inch pounds.

So my defective powertap hub is replaced with a good one

The downside of a accurate powertap is that my power is lower. I will post my new FTP when I have done a 60 minute timetrial on the Pro 300PT with the new flywheel.

@cPritch67: Torque drift is not normal for the 300PT. I think you should contact Saris.

PaulMD
Thanks for the update. I'll be on the phone with Saris Monday morning.

Chris
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  #49  
Old 03-25.-2007
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Default Re: Inaccuracy of Pro 300PT indoorbike with powertap due heating up flywheel
Quote:
Originally Posted by cPritch67
The reason I had to cut my test ride short was that UPS showed up with my just ordered 2.4 on Zipp 303 wheelset. I had to open the boxes and oogle for a bit. I will probably not have the 2.4 installed on the bike for a few weeks - hopefully I'll be one of the problem free (no drops) 2.4's.

I agree, we need to confirm that ??? is looking at torque, not watts.
Oh Zipp 303 with the SL 2.4, nice nice!
I think I am going to order Zipp 404 with the SL 2.4 in april.
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  #50  
Old 03-25.-2007
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Default Re: Inaccuracy of Pro 300PT indoorbike with powertap due heating up flywheel
Paul;


Good to read that all ended well. However, still check your torque each time before use. I am more religious with my PT hub as well.

John
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300pt, flywheel, heating, inaccuracy, indoorbike, powertap, pro

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