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Another bike fit critique thread
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Made some adjustments to my bike. Feel fine, but after looking at myself, not sure if my hips are rocking too much and the saddle needs to be lowered. First tri bike and had it originally set up with the stem flipped up to get a more relaxed position for the first few weeks. Every adjustment after (flipping stem back, moving bars forward, etc) has been on my own, so I don't know if I've gotten myself out of whack.

Also feel like I could remove some spacers, but I'll wait to get through a few races before I start getting more agressive.
Last edited by: KG6: Feb 12, 16 0:47
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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Your house is haunted. Check out that swinging light in the mirror!

You look like you are toe pointing a little. Flip stem. Drop seat a bit. Get more forward too as you get more comfortable in the next few weeks.
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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It's easier to tell if hips are rocking with a shot from behind. Remember your hip angle is compressing and extending, so there is going to be a bit of movement. I don't think your seat is too high based on what you posted.
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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I know ZERO about bike fit...other than what I've read. But, I'm thinking it looks pretty good. You could be more aggressive, but that all comes from your ability to be more aggressive. Some just can't be in that position for a half or ful IM. So...yeah, keep on going with that if you can hold it for a few hours. I'm thinking you're set.
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Re: Another bike fit critique thread [3Aims] [ In reply to ]
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3Aims wrote:
Your house is haunted. Check out that swinging light in the mirror!

You look like you are toe pointing a little. Flip stem. Drop seat a bit. Get more forward too as you get more comfortable in the next few weeks.

Bumped it on the way to the bike. Haha.

Stem was already flipped back lower and I'm pretty sure I'm maxed out on forward with these bars/stem.
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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Is that an Adamo saddle? If so, you are sitting pretty far back on it...

Merge Multisport Founder & Head Coach
USAT Level 2 - Short & Long Course
Ironman Certified
Brevard, NC
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Re: Another bike fit critique thread [T.Skelton] [ In reply to ]
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T.Skelton wrote:
Is that an Adamo saddle? If so, you are sitting pretty far back on it...

It is. That's definitely something I need to adjust. I was a bit further up on the saddle in my original fit from my LBS. Must have done something to change that up. Hopefully that drops my effective saddle height just a tad as well. Maybe help out with the toe pointing.
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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The more you rotate around the bottom bracket, the more your toe will proportionally point down

Merge Multisport Founder & Head Coach
USAT Level 2 - Short & Long Course
Ironman Certified
Brevard, NC
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Re: Another bike fit critique thread [T.Skelton] [ In reply to ]
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But it should stay on the same plane throughout though, correct? I was under the assumption that he had seen some additional flex in the ankle at the bottom of the stroke, which I kind of see as well. I'm not very flexible and don't want to be using my calves to make up for those few centimeters of seat height. I'm already not a very strong runner, don't need to take away anything else.
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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if your toes are pointed down at the bottom of the stroke then you need to lower your seat post a bit and remember to always feel fluent at the bottom of the stroke. Bike fitting is a lot of opinions and unfortunatly a lot about people set in old ways. i like to set saddle height by starting too low or too high and make adjustments until your foot is level at the bottom of the stroke and also have a slight bend in the knee. In my experience this works for most but not all. Remember no two people are the same, so take everything you read on bike fitting with a grain of salt. Also, never sacrifice comfort for aerodynamics, it will ultimately hurt you rather than make you faster. Also, if you make a big change and it feels better, be sure to give it three or four rides to make sure it is actually better.
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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http://imgur.com/TiiBOlx

Have a look at some of those angles... Thinking seat up a bit more?
Last edited by: olmec: Feb 15, 16 3:11
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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KG6 wrote:

Stem was already flipped back lower and I'm pretty sure I'm maxed out on forward with these bars/stem.


that frame is too small for you

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Last edited by: ericM40-44: Feb 15, 16 4:58
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Re: Another bike fit critique thread [olmec] [ In reply to ]
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olmec wrote:


http://imgur.com/TiiBOlx

Have a look at some of those angles... Thinking seat up a bit more?

Your screen grab is taken from the pedal in the ~ 3:00 position rather than bottom of the stroke where the leg will be a good bit more extended. Take another grab at ~ the 5:30 position and measure again.

Hugh

Genetics load the gun, lifestyle pulls the trigger.
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Re: Another bike fit critique thread [jconolty] [ In reply to ]
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jconolty wrote:
if your toes are pointed down at the bottom of the stroke then you need to lower your seat post a bit

This is NOT a universal truth...many people simply have a toe-down pedaling style. And as noted above, the more you rotate around the BB, the greater the propensity for this to occur.

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Re: Another bike fit critique thread [Power13] [ In reply to ]
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I think the toe point is in reference to an "additional" flex of the ankle at the bottom of the stroke. If my foot were to stay on the same plane the entire time, it would be okay since I'm just rotating around the BB. But, if I'm adding a little additional "point" to reach at the bottom of the stroke, that would be a problem. I moved my saddle back a little which should help some, and I'm also concentrating on it more. I think part of it was poor technique that I can maybe correct with a little attention to it.

I
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Re: Another bike fit critique thread [Culley22] [ In reply to ]
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Culley22 wrote:
I know ZERO about bike fit...other than what I've read. But, I'm thinking it looks pretty good. You could be more aggressive, but that all comes from your ability to be more aggressive. Some just can't be in that position for a half or ful IM. So...yeah, keep on going with that if you can hold it for a few hours. I'm thinking you're set.

hey, don't let that stop you...oh, wait it didn't
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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You're not reaching enough. Extend reach 2-3 cm (at least), angle the pads to +15 degrees. You might need more reach from there.

You're not sitting too far back on the saddle, you're just rotated back a bit.

"Toe point" is all relative to the extension and flexion of the ankle in relation to the shank of the lower leg. It has nothing to do with it's relative position to level ground. As you rotate forward from a road position to an aero position, the shank will rotate and the foot will go along for the ride. You foot should not be parallel to the ground...it has nothing to do with technique.

Jim Manton / ERO Sports
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Re: Another bike fit critique thread [olmec] [ In reply to ]
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what did you use to measure those ? thx
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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So just a little about bike fit. If you had a fit done when you purchased your bike, you should as the person that did your fit these questions. As to getting a more "aggressive" fit. What are your hip flexors like? How about your IT bands? Have you ever had an injury? what are your aches when you ride. A proper bike fit should involve all kinds of assessments as to what is going on with you. But agree with first response, very spooky the light moving :)

Robert Driskell
Certified Master Body Geometry fit Technician
Certified Master Retul Fit Technician
Zipp Service Course Specialist
Bikes Plus Pensacola Florida
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Re: Another bike fit critique thread [sciguy] [ In reply to ]
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sciguy wrote:
olmec wrote:


http://imgur.com/TiiBOlx

Have a look at some of those angles... Thinking seat up a bit more?


Your screen grab is taken from the pedal in the ~ 3:00 position rather than bottom of the stroke where the leg will be a good bit more extended. Take another grab at ~ the 5:30 position and measure again.

Hugh

Hi Hugh,

Unfortunately the video cuts the foot off at the bottom of the stroke... but good idea.

Best, M.
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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I didn't read all of the responses so I may be out of context with my response, but here goes:
  • Not too shabby. Saddle may be a touch high. Consider dropping it 5-10 mm.
  • I'd bring the pads a touch forward as well. If you slide forward in the saddle when you start cranking watts you'll probably load the front of your shoulders too much.
  • Once you make those changes, then bring the saddle as far forward as possible and move the armpads forward the same distance to match. You'll have to raise your saddle 1-2 mm per cm you brought it forward.
  • Drop the aerobars as much as you can (while still maintaining the comfort necessary to hold aero effectively).
  • The music was an excellent touch.

I hope that's helpful.

Trent Nix
Owned and operated Tri Shop
F.I.S.T. Advanced Certified Fitter | Retul Master Certified Fitter (back when those were things)
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Re: Another bike fit critique thread [trentnix] [ In reply to ]
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So I took some suggestions and tried them out. Moved the pads up about 1"-1.5". Took out a few head spacers (figure I have 2 months before my first race, a sprint at that, so I can figure out if it's comfortable). Fiddled with the saddle a bit. Think I'm a hair higher, but more foward. Doesn't feel uncomfortable, but I've not spent a lot of time in the position. Mostly worried about the neck/shoulder muscles. Will find out over the next few days. Don't see a huge difference. I think it'll take a longer stem to get any more reach though.
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Re: Another bike fit critique thread [KG6] [ In reply to ]
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If your neck doesn't hurt, then your fit is wrong

TriDork

"Happiness is a myth. All you can hope for is to get laid once in a while, drunk once in a while and to eat chocolate every day"
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