Frame size on Pinarello f8

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pdiomidis
Posts: 45
Joined: Fri Aug 30, 2013 8:31 pm

by pdiomidis

Hello to all! I need an advice between choosing a frameset.

I am 1,71cm with 81 inseam. Sitting in 72,2 saddle height and tip of the saddle with handlebar is about 55cm.

I found an f8 Pinarello frameset in good price but I can’t figure out if I need 50 or 51 size. It’s 525 vs 535 top tube and only 5mm headtube difference.

On the past I had Madone 9 on 52 cm h1, or Scott foil 52.

Probably i fit to both of them but what would be the optimal? I am ok with 8cm of drop..
Thanks in advance.

by Weenie


3Pio
Posts: 1252
Joined: Wed Mar 09, 2016 7:13 pm

by 3Pio

pdiomidis wrote: ↑
Sun Aug 25, 2019 4:52 pm
Hello to all! I need an advice between choosing a frameset.

I am 1,71cm with 81 inseam. Sitting in 72,2 saddle height and tip of the saddle with handlebar is about 55cm.

I found an f8 Pinarello frameset in good price but I can’t figure out if I need 50 or 51 size. It’s 525 vs 535 top tube and only 5mm headtube difference.

On the past I had Madone 9 on 52 cm h1, or Scott foil 52.

Probably i fit to both of them but what would be the optimal? I am ok with 8cm of drop..
Thanks in advance.
Im 175 cm, 82.5 inseam and my bb to top of the saddle is about 72.7-72.9 cm

Have Pinarello FP3 which is 53 size, 110mm stem and 5mm spacers... Few years ago i had a test on Pinrello Dogma F8 in 51.5.. On 51.5 i used 120mm stem, and in that time about 25mm spacers (but since then i went lower, so i guess now i'll be about 15-20 mm spacers)...

My other bikes i ride are Colnago C60 in 50S and 110mm stem (this is perfect size for me), and Cannondale CAAD12 in 52 and 115mm stem (it's ok, but have to use 25mm headset cap + 9mm spacers)

I know is not direct help, but maybe u can compare my sizing / experience.....

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TonyM
Posts: 3252
Joined: Thu Jan 22, 2015 4:11 pm

by TonyM

I am 170-171cm with 79.5cm inseam.

I took a F10 disk in size 50. 110mm stem. No spacers.
Love it!!

My other bikes are a C60 in 48S. 110mm stem. No spacers. And a BMC RM02 51cm. 100mm stem. No spacers.

fogman
Posts: 853
Joined: Fri Oct 30, 2009 10:36 pm

by fogman

I am thinking you will need a size 51.5. My height 174 cm and my saddle height is 73.3 cm. I use a 110 mm stem with 8.5 cm drop. I use a size 51.5 in an F10 and previously an F8.


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TonyM
Posts: 3252
Joined: Thu Jan 22, 2015 4:11 pm

by TonyM

...Not sure...the OP has my height but more inseam than me. So less torso. And I have a 50 (with 110 mm stem, no spacers). I had to decide between the 50 and the 48(?). I think he needs either a 50 or a 48 (?).

Of course the best is to have a proper bike fit!

I personally tested the different sizes (51.5, 50 and 48) on a retül bike to feel the difference. With that crazy expensive F10 disk frame I didn’t want to choose the wrong size!

hannawald
Posts: 567
Joined: Sat Dec 17, 2016 7:28 pm
Location: Czech Republic

by hannawald

Make a table vs Madone and Foil and compare stack and reach rather than head tube + top tube length..

Karvalo
Posts: 705
Joined: Fri Aug 10, 2018 6:40 pm

by Karvalo

TonyM wrote: ↑
Mon Aug 26, 2019 4:49 am
...Not sure...the OP has my height but more inseam than me. So less torso. And I have a 50 (with 110 mm stem, no spacers). I had to decide between the 50 and the 48(?). I think he needs either a 50 or a 48 (?).

Of course the best is to have a proper bike fit!

I personally tested the different sizes (51.5, 50 and 48) on a retül bike to feel the difference. With that crazy expensive F10 disk frame I didn’t want to choose the wrong size!
But it was ok to choose the wrong size C60? In stack and reach a 48s C60 is much closer to an F10 515 than anything else, and a Dogma 500 is much closer to a 42s C60 than anything else. Ok, if the 500 Dogma is the perfect size, the super steep STA of the 42s may have precluded you from getting the saddle setback you need to match it. But it still doesn't make sense that you're running a 110 stem on both bikes, because the 500 and the 48s are exactly a centimetre different in reach.

pdiomidis
Posts: 45
Joined: Fri Aug 30, 2013 8:31 pm

by pdiomidis

First of all thank you very much for all your answers.

And old bike fit I did on 52foil I had was that
https://imgur.com/mhHDzFh But it had big drop back then.

I had on the past also 515 dogma 60.1. But I had very few drop because it had big seat tube. It was very comfortable to be honest but I am not sure it fitted me well. I know I can make 51 fit me but with 10-11 stem and the bike will be not that aero and aggressive.
The only issue with the 50 that worries me is the drop to the handlebar.

As about frames, I can buy a used one 50cm really cheap and if it doesn’t fit me I can choose 51. The 51 I can find it only brand new and I need extra money for that so it will be a big lose if it doesn’t fit me well.

hkgmatt
Posts: 20
Joined: Sun Apr 08, 2018 9:17 am

by hkgmatt

I have similar measurements to you (172cm and 81.6cm inseam) and also ride a 51.5 Dogma 60.1. I recently rented an F10 for a week in the same size and it fit me fine. But I'm sure a size smaller would fit me just as well (for me a 51.5 feels on the large size), and since you can get a size 50 for cheap I don't really see a downside trying that.

Edit: fixed typos
Last edited by hkgmatt on Mon Aug 26, 2019 3:03 pm, edited 1 time in total.

pdiomidis
Posts: 45
Joined: Fri Aug 30, 2013 8:31 pm

by pdiomidis

Yes I think I will go with 50 and if the drop
Is enormous I will just use some more spacers.
I spoke with pinarello uk from phone and they told me for 47 or 50! 515 is way enormous for me they said but just from phone.

Karvalo
Posts: 705
Joined: Fri Aug 10, 2018 6:40 pm

by Karvalo

pdiomidis wrote: ↑
Mon Aug 26, 2019 1:09 pm
Yes I think I will go with 50 and if the drop
Is enormous I will just use some more spacers.
I spoke with pinarello uk from phone and they told me for 47 or 50! 515 is way enormous for me they said but just from phone.
None of the options is going to make much difference in drop. A 515 is only 7mm taller than a 50 and only 2mm taller than a 47.

pdiomidis
Posts: 45
Joined: Fri Aug 30, 2013 8:31 pm

by pdiomidis

Karvalo wrote: ↑
Mon Aug 26, 2019 8:17 pm
pdiomidis wrote: ↑
Mon Aug 26, 2019 1:09 pm
Yes I think I will go with 50 and if the drop
Is enormous I will just use some more spacers.
I spoke with pinarello uk from phone and they told me for 47 or 50! 515 is way enormous for me they said but just from phone.
None of the options is going to make much difference in drop. A 515 is only 7mm taller than a 50 and only 2mm taller than a 47.
So it’s about the top tube then. I can play with bigger stem on 50. Let’s wait and see the final setup

dmp
Posts: 383
Joined: Fri May 08, 2009 8:31 pm
Location: Seattle

by dmp

I ride a size 50 Pinarello Paris (slightly (5mm) taller head tube than a Dogma, otherwise pretty much the same dimensions); I am 171.5cm tall, inseam 82.5. I've got 15mm of spacers under the stem, with a 120mm stem, setback seatpost, 9.5 cm of drop from saddle to stem. I could have gone with the 51.5, which probably would have been fitted for me with only 5mm of spacers and a 110mm stem. I suspect that the 50 will work well for you, with slightly shorter legs than I. I like my current fit very much, and am thinking of dropping the 5mm spacer, as I think I could go with a lower position comfortably.

pdiomidis
Posts: 45
Joined: Fri Aug 30, 2013 8:31 pm

by pdiomidis

dmp wrote: ↑
Tue Aug 27, 2019 7:02 am
I ride a size 50 Pinarello Paris (slightly (5mm) taller head tube than a Dogma, otherwise pretty much the same dimensions); I am 171.5cm tall, inseam 82.5. I've got 15mm of spacers under the stem, with a 120mm stem, setback seatpost, 9.5 cm of drop from saddle to stem. I could have gone with the 51.5, which probably would have been fitted for me with only 5mm of spacers and a 110mm stem. I suspect that the 50 will work well for you, with slightly shorter legs than I. I like my current fit very much, and am thinking of dropping the 5mm spacer, as I think I could go with a lower position comfortably.
Thanks for your reply! I guess i will be fine. On 51 60.1 dogma i had 10 and 11 stems, it was super confy but i remember my self being a tourist on the bike and not even on a race geometry.

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TonyM
Posts: 3252
Joined: Thu Jan 22, 2015 4:11 pm

by TonyM

Karvalo wrote: But it was ok to choose the wrong size C60? In stack and reach a 48s C60 is much closer to an F10 515 than anything else, and a Dogma 500 is much closer to a 42s C60 than anything else. Ok, if the 500 Dogma is the perfect size, the super steep STA of the 42s may have precluded you from getting the saddle setback you need to match it. But it still doesn't make sense that you're running a 110 stem on both bikes, because the 500 and the 48s are exactly a centimetre different in reach.
The distance frame reach+handelbar reach+shifter reach is key.

My C60 48S and my F10 disk 500 have different reach values but they also have different handlebars and shifters.

by Weenie


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