Is my new road bike profile off??

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GWPOS
Posts: 178
Joined: Mon Aug 24, 2009 2:47 pm
Location: Yucaipa, Ca

Is my new road bike profile off??

Post by GWPOS »

I finally got my road bike and hooked up the IBike to it. Until now I have been using it on a mtb. I did my cal ride and coastdowns, but some of the numbers seem off. I actually did 3 cal rides. The wind scaling on the first 2 was .794 and .798.
On this last one which was done with very little to no wind at all the next day was .690. Also on this last one my CRR seems really low. Could anyone please take a look at it, the file is attached. I also attached the ride file that I did on the way home right after doing the cal. procedure. Thanks

Clint
Attachments
iBike_12_06_2009_1227_19_Miles_AFTERCALRIDE.csv
(728.41 KiB) Downloaded 345 times
091206_cal_data.ibcd4m
(660.95 KiB) Downloaded 332 times
coachboyd
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Re: Is my new road bike profile off??

Post by coachboyd »

It's hard to tell from a one way ride because you could have had a tailwind or headwind the entire way.
If you post a ride that started and finished around the same place, on a fairly calm day, it'll be a lot easier to work with.

On that long downhill between mile 10 and 11, were you pedaling? How hard? Do you have a cadence sensor or is it a wired speed sensor?
Boyd Johnson
http://www.boydcycling.com - high performance carbon wheels and accessories
GWPOS
Posts: 178
Joined: Mon Aug 24, 2009 2:47 pm
Location: Yucaipa, Ca

Re: Is my new road bike profile off??

Post by GWPOS »

Thanks coachboyd



There was a point at about where you mentioned where I was going downhill and kind of pushing it hard to catch up to another rider. Never actually got closer to him than 15 yards or so.

As for my cadence and speed sensors, I have a wired unit for the speed sensor and I use my Garmin 305 for cadence.
GWPOS
Posts: 178
Joined: Mon Aug 24, 2009 2:47 pm
Location: Yucaipa, Ca

Re: Is my new road bike profile off??

Post by GWPOS »

Sorry for the split answer. I will do an out and back ride tonight and post it for you to look at. Thanks again..

Clint
GWPOS
Posts: 178
Joined: Mon Aug 24, 2009 2:47 pm
Location: Yucaipa, Ca

Re: Is my new road bike profile off??

Post by GWPOS »

Ok coachboyd, here is my out and back ride file. I have it merged with my Garmin and also without. Thanks for looking at it for me....

Clint
Attachments
iBike_12_08_2009_1904_28_Miles_GRMN.csv
(1.72 MiB) Downloaded 313 times
iBike_12_08_2009_1904_28_Miles.csv
(1.45 MiB) Downloaded 326 times
coachboyd
Posts: 527
Joined: Thu Mar 27, 2008 7:01 pm
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Re: Is my new road bike profile off??

Post by coachboyd »

I took your crr up just a little bit and brought your cda down just a hair to compensate. On the downhill everything looks great, and the wind scaling you had is perfect. I have attached the profile for you here. You should be good to go with great results from here on.
Attachments
clint_dec9.ibp
profile for clint, December 9th
(337 Bytes) Downloaded 351 times
Boyd Johnson
http://www.boydcycling.com - high performance carbon wheels and accessories
GWPOS
Posts: 178
Joined: Mon Aug 24, 2009 2:47 pm
Location: Yucaipa, Ca

Re: Is my new road bike profile off??

Post by GWPOS »

Thanks coach boyd and fernando for all of your help.
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