Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Fitting Your Bike Are you confused about how you should fit a bike to your particular body dimensions? Have you been reading, found the terms Merxx or French Fit, and don’t know what you need? Every style of riding is different- in how you fit the bike to you, and the sizing of the bike itself. It’s more than just measuring your height, reach and inseam. With the help of Bike Fitting, you’ll be able to find the right fit for your frame size, style of riding, and your particular dimensions. Here ya’ go…..the location for everything fit related.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-10-14, 12:06 AM   #1
Fiji__speed
Junior Member
Thread Starter
 
Fiji__speed's Avatar
 
Join Date: Jun 2014
Location: Illinois, U.S.A.
Bikes: 1973 Fuji S10-S Special Road Racer (vintage), 1986 Miyata 110 (vintage), Pacific FVI DS2 Mountainbike
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm a new road biker: I really need your advice!

Hey guys, new road biker here almost set on making my very first purchase. Very excited about this! However, I don't live very close to a bike shop, so getting fitted in person is not much of a possibility.

I found a bike that I want to buy online. This is the description:

The stand -over height is 32.5"

It's 23" from the center of crank to the top of seat tube


I'm 5'11'' and after sitting on my mountain bike in my garage, this is what I've discovered: I can sit comfortably on my seat (with my feet touching the ground flat) at seat height being about 35 inches high from the ground.


According to the description above, will the bike fit me?
Fiji__speed is offline   Reply With Quote
Old 06-10-14, 09:41 AM   #2
CompleteStreets
Senior Member
 
Join Date: Nov 2013
Bikes:
Posts: 244
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If your feet are touching the ground flat while you're sitting on the seat, the seat is way too low. You should barely be able to scrape the ground with both your tippy toes, simultaneously, when sitting. This will be a seat height that will correspond with a slight bend of the knee while you are riding. The reason the seat should be raised so high is because the pedals are about 6-inches above ground level when in their lowest position. You can do serious damage to your knees if you can sit and have your feet flat on the ground. If you're only doing short trips, bike fit is not so critical. However, if you're going on long trips of several miles you can generate pain in places like your knees, wrists and shoulders if the bike doesn't fit correctly.

Below is a great youtube video on how to adjust your saddle height as well as setback. It's a bit technical, but the general idea is you want only a slight bend in the knee.

https://www.youtube.com/watch?v=oE3XyTXUIxU

To answer your question about the bike you found online, there's a good chance the bike has the right size frame for your body, but it's difficult to say for sure without test riding it first. Having long vs short legs, as well as long vs short arms, makes a difference. I'm not an expert on bike fit, but there's a ton of great info on youtube to supplement any info you receive here on bike forums.
CompleteStreets is offline   Reply With Quote
Old 06-10-14, 12:14 PM   #3
Fiji__speed
Junior Member
Thread Starter
 
Fiji__speed's Avatar
 
Join Date: Jun 2014
Location: Illinois, U.S.A.
Bikes: 1973 Fuji S10-S Special Road Racer (vintage), 1986 Miyata 110 (vintage), Pacific FVI DS2 Mountainbike
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
CompleteStreets,

Thank you for taking the time to address my question. So, you're saying that as someone who is 5'11, that a 32.5'' (58.42 cm) standover height and 23'' (82.55 cm) from center-crank to top tube will fit someone like me okay? I know that you mentioned that size isn't too important, but I just want to make sure that it will be a generally good fit.
Fiji__speed is offline   Reply With Quote
Old 06-10-14, 01:33 PM   #4
Leisesturm
Senior Member
 
Join Date: Jul 2005
Bikes:
Posts: 2,218
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 44 Post(s)
I am 5'10". My road-racer is exactly 23.5" from center of BB to top of seat-tube. Stand-over is exactly 31.5". In shoes I can barely stand over the bike. Without shoes it is completely impossible. Put bluntly, my bike is too big for me, but I like it anyway and I ride it just fine. With a 32.5 standover the OP is probably going to find that they will need bike specific shoes with good soles to get them able to stand over the bike safely, if not comfortably. FWIW.

H
Leisesturm is offline   Reply With Quote
Old 06-10-14, 05:28 PM   #5
Dfrost 
Senior Member
 
Dfrost's Avatar
 
Join Date: May 2013
Location: Pacific Northwest
Bikes: '87 Marinoni, '79 Miyata 912, Wife's New IF Custom, Redline
Posts: 590
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Your overall height is NOT a good indicator of the correct size bike. I'm 6'0" tall and ride very big frames that fit wonderfully with my very long legs. But I have a short torso, so the top tube length needs to be relatively short. And there are plenty my height who have exactly the opposite body geometry. Plus a few who are "normal".

There are plenty of good bike fit calculators out there online that will give you a more accurate guide using a few more body measurements.
Dfrost is offline   Reply With Quote
Old 06-10-14, 07:04 PM   #6
Carbonfiberboy 
just another gosling
 
Carbonfiberboy's Avatar
 
Join Date: Feb 2007
Location: Everett, WA
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Posts: 11,089
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 41 Post(s)
And this calculator is probably the best:
Bike Fit Calculator | Find Your Bike Size | Competitive Cyclist
Carbonfiberboy is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 07:15 AM.