Frame size, new bike fitting, questions

Discuss light weight issues concerning road bikes & parts.
User avatar
pashax
Posts: 47
Joined: Tue Dec 09, 2014 10:48 pm
Location: London

by pashax

I have started cycling after a long break (nearly a year). My fit remained the same but my neck and traps get stiff after an hour. Is it cause I became unused to riding ?
"If you brake, you do not win". MC

CtV
Posts: 2
Joined: Sun Jun 14, 2020 9:30 am

by CtV

Hello all,
I am looking to build my first roadbike and decided to get the 2020 Emonda Alr Frame. I am just not sure whether to get the size 52 or 54 frame. I am 173 cm in height and my inseam measures 80 cm, Trek reccomends buying a 54, but currently i am riding a Tarmac sl6 in framesize 52 with a 100mm stem. Comparing both frames geometry the Emonda size 52 is way closer to my current setup...Any eexperience?

by Weenie


JMeinholdt
Posts: 228
Joined: Wed Feb 26, 2020 10:31 pm
Location: Topeka, KS

by JMeinholdt

CtV wrote:
Mon Jun 15, 2020 12:40 pm
Hello all,
I am looking to build my first roadbike and decided to get the 2020 Emonda Alr Frame. I am just not sure whether to get the size 52 or 54 frame. I am 173 cm in height and my inseam measures 80 cm, Trek reccomends buying a 54, but currently i am riding a Tarmac sl6 in framesize 52 with a 100mm stem. Comparing both frames geometry the Emonda size 52 is way closer to my current setup...Any eexperience?
Personally, when looking at frames, if you're borderline, I recommend downsizing. You can always 'add size' by stretching out the stem and getting seatpost set back than it is to make the frame smaller. Plus some additional exposed seat post has a tendency to dampen vibrations.
Wilier Cento10AIR Rim Brake - Ultegra Di2
BMC GF02 - Ultegra R8000 - Commuter/Trainer

YouTube content (JM Cycling Videos): https://www.youtube.com/channel/UCTGn14 ... _N-wHlViQ/

Strava link: https://www.strava.com/athletes/jmeinholdt

JMeinholdt
Posts: 228
Joined: Wed Feb 26, 2020 10:31 pm
Location: Topeka, KS

by JMeinholdt

Quick question on Trek womens sizing. My wife is finally starting to get more into cycling after years of pestering her. I found a great deal on a used womens specific Emonda in size 44cm. My wife is 63" (~160cm) with a 27.5" (~71cm) inseam.

I know Trek recommends the 44cm size for around a 60" height, but I also ran through a few other sizing calculators, like Canyon, which recommends their WMN 3XS size for her height/inseam and the geometry is nearly identical. The Trek's stack is a bit lower and reach a bit longer. She's been riding around on my 51cm BMC which is way too big for her, but she's managed.

Do you think the Trek is within the range to fit or is it just too small?
Wilier Cento10AIR Rim Brake - Ultegra Di2
BMC GF02 - Ultegra R8000 - Commuter/Trainer

YouTube content (JM Cycling Videos): https://www.youtube.com/channel/UCTGn14 ... _N-wHlViQ/

Strava link: https://www.strava.com/athletes/jmeinholdt

davidrogers555
Posts: 2
Joined: Thu Jun 25, 2020 7:11 am

by davidrogers555

I'm a cyclist and I post my advices on Our Bike Guide

User avatar
kgt
Posts: 8651
Joined: Sun Jun 18, 2006 10:29 am
Location: Athens, Greece

by kgt

CtV wrote:
Mon Jun 15, 2020 12:40 pm
Hello all,
I am looking to build my first roadbike and decided to get the 2020 Emonda Alr Frame.
Hope you didn't:
https://www.youtube.com/watch?v=Cse6xFyPSG8

r_mutt
Posts: 348
Joined: Sat Feb 23, 2008 6:33 pm

by r_mutt

HI all-

I'm looking at a used Pinarello Montello Track frame from 2011 and the geometry is so different than a traditional road bike I'm having trouble sizing one.


I usually fit 51/52 sized road bikes with 530-ish TT
My saddle height BB center to top of seat is 70cm
Reach is around 375-384
Stack is 500-520

Pinarello Geo is attached.

thanks!
Attachments
b4e7ab7e37_1-1.jpg

User avatar
jekyll man
Posts: 1453
Joined: Wed Apr 25, 2007 10:23 am
Location: Pack filler

by jekyll man

r_mutt wrote:
Sat Jun 27, 2020 11:13 pm
HI all-

I'm looking at a used Pinarello Montello Track frame from 2011 and the geometry is so different than a traditional road bike I'm having trouble sizing one.


I usually fit 51/52 sized road bikes with 530-ish TT
My saddle height BB center to top of seat is 70cm
Reach is around 375-384
Stack is 500-520

Pinarello Geo is attached.

thanks!
Looking at that, i'm guessing a 49 is the right size, as next size up you run the risk of the seatmast not dropping enough.
Official cafe stop tester

CtV
Posts: 2
Joined: Sun Jun 14, 2020 9:30 am

by CtV

kgt wrote:
Sat Jun 27, 2020 1:39 pm
CtV wrote:
Mon Jun 15, 2020 12:40 pm
Hello all,
I am looking to build my first roadbike and decided to get the 2020 Emonda Alr Frame.
Hope you didn't:
https://www.youtube.com/watch?v=Cse6xFyPSG8
I did :D and i went for a 52 frame size..when finished that bike ill let you know how it fits and feels!

r_mutt
Posts: 348
Joined: Sat Feb 23, 2008 6:33 pm

by r_mutt

jekyll man wrote:
Sun Jun 28, 2020 8:40 am
r_mutt wrote:
Sat Jun 27, 2020 11:13 pm
HI all-

I'm looking at a used Pinarello Montello Track frame from 2011 and the geometry is so different than a traditional road bike I'm having trouble sizing one.


I usually fit 51/52 sized road bikes with 530-ish TT
My saddle height BB center to top of seat is 70cm
Reach is around 375-384
Stack is 500-520

Pinarello Geo is attached.

thanks!
Looking at that, i'm guessing a 49 is the right size, as next size up you run the risk of the seatmast not dropping enough.

thanks-

yes- that does seem to be the biggest one taking into account my saddle height. I wonbder if the 45 is too small with thatr tiny HT.

maxim809
Posts: 140
Joined: Sat Feb 25, 2017 6:28 am

by maxim809

Hi all, if I go from 170cm cranks down to 165cm cranks, naturally the seatpost needs to be raised.

However, is there a rule of thumb or general trend in regards to what happens with the saddle setback when moving to shorter cranks?

If this question is too general to make any specific claims, let me know what extra info or assumptions are needed. I'm trying to figure out if getting new cranks means needing a new seat post with a different offset.
Last edited by maxim809 on Wed Jul 22, 2020 4:34 am, edited 1 time in total.
2015 LaPierre Pulsium FDJ | 2016 Pinarello Dogma F8 | 2016 Bianchi XR4

TobinHatesYou
Posts: 6068
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

maxim809 wrote:
Wed Jul 22, 2020 3:41 am
Hi all, if I go from 170cm cranks down to 165cm cranks, naturally the seatpost needs to be raised.

However, is there a rule of thumb or general trend in regards to what happens with the saddle setback when moving to shorter cranks?

If this question is too general to make any specific claims, let me know what extra info or assumptions are needed. I'm trying to figure out if getting new cranks means needed a new seat post with a different offset.

Setback will naturally increase when you change saddle height thanks to STA. I would leave the saddle in the same position on the rails, ride that way for a bit and then make the necessary adjustments if you encounter discomfort.

maxim809
Posts: 140
Joined: Sat Feb 25, 2017 6:28 am

by maxim809

Makes sense, thanks.
2015 LaPierre Pulsium FDJ | 2016 Pinarello Dogma F8 | 2016 Bianchi XR4

Talsuwaidi
Posts: 7
Joined: Sat Feb 15, 2020 9:51 am

by Talsuwaidi

Hey, bike size help needed.

My current bike is a 15 Cannondale super six evo (stack 526 reach 384 with 3.5cm spacers and 110cm stem @ 83 deg angle) saddle to bars drop is 8.7cm according to my bike fit. Saddle height 732 and setback of - 67

I'm currently between the specialized venge pro size 54 (stack 534 with a minimum 18mm spacer headset cap / reach 387) and a tarmac sl7 pro size 52 (stack 527 reach 380 - I know numbers aren't official but lbs says they will be almost identical to sl6)

Only these sizes are available and choice is based on sizing only and not other factors.

My question is which bike I should go for and will fit me best (I know both could fit me but with a more asthetic look in regards of spacers and no extreme need of stem length)

by Weenie


trikobe
Posts: 177
Joined: Tue Dec 16, 2008 9:16 pm
Location: California

by trikobe

Sl5
Sl5
Having a hard time deciding on a 52 or 54 Tarmac SL7. Pictured above was my size 52 SL5. Unfortunatley I dont have my fit coordinates so was hoping someome with a keen eye who can go off my photo can give me their thoughts.

Size 52. Stem is 120mm -6. 5mm spacer underneath. 170mm crankarm.

Fit is dialed in. Cant see myself going any lower or longer. Dont mind 5mm increase in stack if its a result of going to a larger size. Read here and reviews that SL7 has same geo as SL6 (although stack and reach numbers on paper arent the same), which has shorter reach and stack, as well as seat tube length than SL5. I can make both sizes work but worry that a 52 SL7 will show too much seatpost. As is, my old set up already has a lot post showing. Any thoughts appreciated. Thanks

Post Reply