Tire pressure 25mm tires, wheel maintenance

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Tire pressure 25mm tires, wheel maintenance

Postby Igor » January 21st, 2017, 10:32 am

My name is Igor, and I enjoy a lot cycling, i usually participate in triathlon races sprint/olympic distance in Spain, and if I am lucky enough and there are not a lot of good competitors I can achieve podium places in some races... My actual weight is between 70-72 kgs (154 - 159 lbs)


I have been using Flo 30 wheels for 2 years, and with your new results in the wind tunnel I would like to ask you some questions... I know they were made with Flo60, so I would like to know if I could "extrapolate" the results to Flo30

1st, if I put Continental GP4000 S II tires, 25mm, which tire pressure should I use in races? front/rear

( I am using right now Continental GP 4000 S II 23mm tires, and of course after reading your blog: http://flocycling.blogspot.com.es/2016/ ... hange.html, I try to put 95 psi on 23mm tires, I have already seen your graphic http://flocycling.blogspot.com.es/2014/ ... ssure.html, that I believe is the same from Michelin website that recommends 87-89 psi on 25mm tires regarding my weight, but in my opinion it does not suit the real width of the wheels... and the actual "ideal" pressure would be lower... that is why I am asking your opinion)

2nd, the fastest tires, regarding the tires you were able to test are Continental Force II 24mm ? So the "best" option from all the tires you have tried would be front and rear Continental Force II 24 mm

3rd, What kind of wheel maintenance do you recommend after 2 years?
Shoul I performa a hub maintenance as you show in this video: https://youtu.be/Aj6tBZwNKCw?




Right now I am always using latex tubes from Michelin to achieve lower rolling resistance, and I will post one photo from the last summer...
Hope someday I will be able to use your new carbon clincher wheels

Image


Thank you for reading,

Best regards
Igor
 
Posts: 2
Joined: January 20th, 2017, 10:57 am

Re: Tire pressure 25mm tires, wheel maintenance

Postby Chris Thornham » January 22nd, 2017, 6:20 pm

Igor wrote:My name is Igor, and I enjoy a lot cycling, i usually participate in triathlon races sprint/olympic distance in Spain, and if I am lucky enough and there are not a lot of good competitors I can achieve podium places in some races... My actual weight is between 70-72 kgs (154 - 159 lbs)


I have been using Flo 30 wheels for 2 years, and with your new results in the wind tunnel I would like to ask you some questions... I know they were made with Flo60, so I would like to know if I could "extrapolate" the results to Flo30

Unfortunately you can't. Unless you specifically test the FLO 30s with all of the same tires, it's impossible for us to say which tire is best on that specific wheel.

1st, if I put Continental GP4000 S II tires, 25mm, which tire pressure should I use in races? front/rear

We are still conducting studies to know the optimal pressure rider of any weight. From what we know now, I'd stay lower than you might expect. I'd start at 95psi.

( I am using right now Continental GP 4000 S II 23mm tires, and of course after reading your blog: http://flocycling.blogspot.com.es/2016/ ... hange.html, I try to put 95 psi on 23mm tires, I have already seen your graphic http://flocycling.blogspot.com.es/2014/ ... ssure.html, that I believe is the same from Michelin website that recommends 87-89 psi on 25mm tires regarding my weight, but in my opinion it does not suit the real width of the wheels... and the actual "ideal" pressure would be lower... that is why I am asking your opinion)

2nd, the fastest tires, regarding the tires you were able to test are Continental Force II 24mm ? So the "best" option from all the tires you have tried would be front and rear Continental Force II 24 mm

On the FLO 60 Carbon Clincher yes. On the FLO 30s I can't say for sure.

3rd, What kind of wheel maintenance do you recommend after 2 years?
Shoul I performa a hub maintenance as you show in this video: https://youtu.be/Aj6tBZwNKCw?

We recommend the hub maintenance every 1500 miles. So if you haven't done that maintenance yet, I'd highly recommend it. Outside of that you won't need to do anything else.




Right now I am always using latex tubes from Michelin to achieve lower rolling resistance, and I will post one photo from the last summer...
Hope someday I will be able to use your new carbon clincher wheels

Thanks for the picture! It's an excellent shot. Looks like an amazing ride.

Image

Thank you for reading,

Best regards


Take care,
Chris Thornham
FLO Cycling: http://www.flocycling.com
FLO Blog: http://bit.ly/b3Zlpq | Twitter: http://bit.ly/bOQ08x | Facebook: http://bit.ly/d8KDhI
Chris Thornham
Site Admin
 
Posts: 571
Joined: March 2nd, 2012, 3:35 pm
Location: Las Vegas, Nevada

Re: Tire pressure 25mm tires, wheel maintenance

Postby Igor » January 24th, 2017, 3:25 am

Thank you for your answer...

Because of what you wrote I would ask you one last thing, if it is not wise to extrapolate the results which you have obtained with FLO 60 to the FLO 30 wheels,

In terms of performance do you recommend switching to 25mm tires on the FLO 30, should I keep using the 23mm tires, or it is not wise to make any conclusion without further studies?
Igor
 
Posts: 2
Joined: January 20th, 2017, 10:57 am

Re: Tire pressure 25mm tires, wheel maintenance

Postby Chris Thornham » January 25th, 2017, 11:20 am

Igor wrote:Thank you for your answer...

Because of what you wrote I would ask you one last thing, if it is not wise to extrapolate the results which you have obtained with FLO 60 to the FLO 30 wheels,

In terms of performance do you recommend switching to 25mm tires on the FLO 30, should I keep using the 23mm tires, or it is not wise to make any conclusion without further studies?


This too is something that I cannot confidently answer without further testing. Sorry I don't have a better answer for you.
Chris Thornham
FLO Cycling: http://www.flocycling.com
FLO Blog: http://bit.ly/b3Zlpq | Twitter: http://bit.ly/bOQ08x | Facebook: http://bit.ly/d8KDhI
Chris Thornham
Site Admin
 
Posts: 571
Joined: March 2nd, 2012, 3:35 pm
Location: Las Vegas, Nevada


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