General Discussion Triathlon Talk » Bike fit ok? Rss Feed  
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2010-08-17 8:06 PM
in reply to: #3049157

Veteran
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South Shore, MA.
Subject: RE: Bike fit ok?
OS....My first long ride the seat sank and my knees were smokin


2010-08-17 9:31 PM
in reply to: #3049204

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Extreme Veteran
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Tx
Subject: RE: Bike fit ok?
I agree that you should call the shop and ask if a full fitting is included on that bike... 100% of the shops that I've been to give you a proper fitting for free if you purchase a bike over $1,000.
2010-08-17 9:40 PM
in reply to: #3046373

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Member
50
2525
Whittier
Subject: RE: Bike fit ok?
Take it from a big kicking, toe pedaling heel striker; raise the seat.
2010-08-17 10:13 PM
in reply to: #3047747

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Master
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Midlothian, VA
Subject: RE: Bike fit ok?
I think you need to get the seat WAY higher, and maybe even drop the cockpit if possible.

-eric 
2010-08-18 7:15 AM
in reply to: #3046373

Member
106
100
Subject: RE: Bike fit ok?
Here's a pic I posted in the MA forums of the bike when I first got her back in May. The seat definitely looks higher than it is in the recent pics of me riding it were. So it must have just sank overtime (or all at once off of a big bump?) and I never noticed it...hehe. I've raised it back to what it should be according to the Lemond calculation, and then tweaked it a bit for getting a comfortable amount of knee bend. I am excited to get it out on the road to give it a try to see how much of a difference I'll feel in my quads...cause I've been really been able to feel it in my quads.









(Felt B16.jpg)



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2010-08-18 11:08 AM
in reply to: #3047502

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Master
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Rural Ontario
Subject: RE: Bike fit ok?
I sured does sound like the seatpost clamp came loose and your bike seatpost slid down.

A trick I use is to put a piece of electrical tape around my seatpost, just flush above the seatpost clamp collar. That way if the seat post moves I can see it right away (the tape will bunch up)


Edited by mgalanter 2010-08-18 11:13 AM


2010-08-18 11:12 AM
in reply to: #3050322

Member
106
100
Subject: RE: Bike fit ok?
mgalanter - 2010-08-18 12:08 PM
TredH20 -They input all the information into a computer, height, inseam, arm length, etc...and that spit out a bunch of measurements that they adjusted the bike to. They asked me what sort of aero position I wanted - and I chose the moderate position as I was new to it, and I am wondering if that's the reason the seat is so low. It is at it's lowest point basically...it's pretty much bottomed out in the seat tube.


Either the guy at the LBS knows nothing about bike fitting (which I doubt) or the seatpost clamp came loose and your bike seatpost slid down until it bottomed out. A couple of inches is quite a lot of movement.


My big butt was too much for the seat post clamp...even more motivation to lose the rest of the weight!
2010-08-18 11:24 AM
in reply to: #3046373

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Champion
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MA
Subject: RE: Bike fit ok?
Good idea is to mark your seatpost with electric tape and write down the measurement as it isn't uncommon for seatposts to sink very small amounts over time.

I just had a bike fit on my new bike and my reach was off by 4 cm which doesn't seem like much but made a huge difference in comfort.

Pick your battles and when you want to find a bike fitter post in the MA forum. There are a few and some even offer discounts over the winter. 
2010-08-18 11:41 AM
in reply to: #3050381

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Sensei
Sin City
Subject: RE: Bike fit ok?
When I read what people said about the seat being too low, I figured I would take a look and say "yeah, it's a touch too low".

Bot WOW, I was shocked...  I don't know, but my first impression is that you hit a bump and the seat post slid down like 3-4 inches...  It looks that bad to me, honestly...

Here are a couple tips that I have found to get me pretty close to the proper seat hight.  If you take your foot out of the pedal and rest your HEEL on the pedal (so you are pedaling with your heels instead of the ball of your feet) you should JUST be able to keep them in contact with the pedal at the bottom of the stroke without having to rock your hips (having your leg locked out is ok).  That should get you within a centimeter or two.

Also, check out the fitting calculator on competitivecyclist.com.  If you take your measurements accurately, it will spit out saddle heights that are pretty darn close for a good fit.  At least they have with me.
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