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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.

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Old 07-15-13, 09:35 AM   #1
ToiletSiphon
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Question Want to buy a hybrid, not sure about the fitting

Want to buy a hybrid, not sure about the fitting
I'm getting back into biking and I narrowed my choice betwee two bikes (Trek FX 7.3 and Giant Escape 1). I chose this kind of hybrid because I want some kind of performance but with a relatively straigh posture, since I've had shoulder and forearms issues in the past years.

I tried both, they both feel pretty good, except that I feel I'm more leaned foward and have to put more weight on my arms with the Giant. The shop that sells the GIant says they could install me a higher or adjustable stem for free and that I would get a similar feeling that I get with the Trek. Both shops offer a complete 1 hour custom adjustment at no cost.

The Giant would cost me 100$ less and has pretty much the same components as the Trek, but it has a carbon fiber fork, which with Ergon grips (included in the price) would probably be good for my arms issues. So I would really prefer to go with this one...

BUT ! The thing that bothers me is that I can't really know how the Giant will really feel with the higher stem/bar. Is the seller at my bike shop right when he says that it's pretty much just a matter of doing a proper fitting and changing or adjusting the stem/bar and that I would be as comfortable on the Giant as I am on the Trek ?

I've included the geometry specs of both bikes. I'm 5'10", 32.5 inseam, 145 lbs, so I would go in the Medium (19") for Giant and 20" for the Trek.

http://www.trekbikes.com/ca/en/bikes...ness/fx/7_3_fx
http://www.giant-bicycles.com/en-us/...5830/#geometry

Thank you!

Last edited by ToiletSiphon; 07-15-13 at 09:43 AM.
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Old 07-15-13, 02:04 PM   #2
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Hi,

Bar height isn't something you can fit to a person, like seat height.

How you feel now and how you will feel about bar height in the future is anyones guess.
You can set the bar height moreorless right for a sit up and beg or comfort bike in a bike fit.

But with other bikes it generally lowers as you get fitter.

Go with the Giant and adjustable stem and expect
to adjust the bars as you go along, it will change.

(A lot of people don't, to their detriment.)

In three months I went from a flipped up stem with
3 1cm rings below it to flipped down, all rings above.

rgds, sreten.

FWIW the bars on both my bikes are set as low as they will go.

Last edited by sreten; 07-15-13 at 02:12 PM.
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Old 07-16-13, 06:35 AM   #3
ToiletSiphon
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Quote:
Originally Posted by sreten View Post
Hi,

Bar height isn't something you can fit to a person, like seat height.
You mean there is no absolute, like in seat height, and that is more a question of personal preference than one of morphology ?
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Old 07-16-13, 01:06 PM   #4
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Quote:
Originally Posted by ToiletSiphon View Post
You mean there is no absolute, like in seat height, and that is
more a question of personal preference than one of morphology ?
Hi,

Yes. Pretty much seat height has to be right and reach has to be pretty near.
Seat position IMO about right - I'm not a KOPS fascist, but bar height AIUI
is about a good body arm angle, and that is determined by how much you
are comfortable with and can bend your torso over the bike - it changes.

If you want to go fast as possible you need to bend and get your body used
to it. Riding for fitness, not speed, you can adopt a more comfortable bar
height, but everyone inevitably ends up wanting to go faster and go as
low as they can get on with eventually - which changes with training.

My bull horns are low - but I have no drops (50+).

rgds, sreten.

Last edited by sreten; 07-16-13 at 01:18 PM.
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Old 07-16-13, 01:30 PM   #5
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Pretty much .. bars can be changed as can stems, plus the ergon grip upgrade you mentioned.

saddles , petals gear ranges, all that are just parts .. no reason to not alter the bike
but , not willing to pony up the differences in upgrade part's cost. .
point of sale is the best time as the removed ones are still new so retain take-off resale value.

You walking into a shop and test riding these choices
or just writing on the web from the company computer on their time,
and overthinking on this?

go try the bikes , any decent bike shop can change the stem and whatnot to make the fit
as well as can be.
short of being a custom made to measure frame.

competitive racers get really anal about the last MM. you are getting a JRA Hybrid.

Last edited by fietsbob; 07-16-13 at 01:38 PM.
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Old 07-16-13, 02:28 PM   #6
ToiletSiphon
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Like I've said, I already tried both bikes. I was just wondering if what the seller told me was a real advice or a way to make sure I would buy from him. He looked honest, but as I don't know much about bikes I had no way to know. What I know is that every electronic salesperson I meet is feeding me BS and I can tell because I know that field more, so I get cautious about things I don't really know.

And I know I'm not getting a race machine, but that's still a lot of money for me and I would hate making a choice I would regret.
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Old 07-16-13, 03:47 PM   #7
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Ask them to change the stem, and try it!
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Old 07-16-13, 05:13 PM   #8
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Quote:
Originally Posted by sreten View Post
Hi,

Bar height isn't something you can fit to a person, like seat height.

How you feel now and how you will feel about bar height in the future is anyones guess.
You can set the bar height moreorless right for a sit up and beg or comfort bike in a bike fit.

But with other bikes it generally lowers as you get fitter.

Go with the Giant and adjustable stem and expect
to adjust the bars as you go along, it will change.

(A lot of people don't, to their detriment.)

In three months I went from a flipped up stem with
3 1cm rings below it to flipped down, all rings above.

rgds, sreten.

FWIW the bars on both my bikes are set as low as they will go.
I will second this. I bought I Giant Escape RX1 ~3 weeks ago and already have the stem flipped and lowered to the lowest possible setting. I've also ended up with bar ends inside my grips (to approximate riding the hoods on a road bike) and Ergon GP2 grips (for the extra outboard bar ends).

I'm far from in great shape, but I find the much more aggressively leaned forward position of primarily riding my inboard bar ends far more comfortable than the more upright position the bike came with. This will vary for each person however. For some people a more upright position is more comfortable, especially if they lack the flexibility to ride in the more aggressive position with their back straight and their shoulders relaxed, while for others the tripod weight distribution between pedals, saddle and grips is more comfortable.

Expect that you will end up changing grip angles, stem angles, etc. as you find what works for you.

Hell, as happy as I am with my fit, I'm still thinking about going to a 120mm stem from my 100mm stem so I can stretch out further. This is definitely not typical for a ~300lb fairly out of shape rider after 3 weeks, I assure you
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