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First Bike Fit

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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 dont 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. Its more than just measuring your height, reach and inseam. With the help of Bike Fitting, youll 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.

First Bike Fit

Old 01-26-18, 10:54 AM
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First Bike Fit

I've been training for many months towards my first century coming up in 3 weeks. I decided to have my LBS (not where i bought the bike) run through the mechanicals and do a bike fit. This fit took ~2.5hrs and cost $170. If there is any interest I will be more than happy to update this as I put some miles on the bike. I have lost ~75lbs, but am still a big guy with short legs and a long torso.

Bike Mechanicals:
- Replaced worn out 11-28 cassette with Ultegra 11-23 (there are no hills here).
- Replaced worn out chain with KMC chain.
- Recommended replace rear tire before big ride so I purchased a Gatorskin Hardshell.
- Performed tune-up.
- Got a great deal on a floor pump as now I only have an electric compressor.

Bike Fit:
Cleats:
1. Measured my feet outside and inside my shoes.
2. Adjusted cleats
3. Had me pedal and observed and then adjusted cleats again.

Fit Measurements:
1. Measured my inseam twice.
2. Measured the distance form the inseam to collar bone.
3. Measured from my knee to the floor.
4. Measured my arms and shoulders.
My bike is 54cm. He used some tables to calculate and what the calculations showed is that from the inseam down Im a 50-52cm bike size and from the inseam up I am a 58cm bike size. Yes, i have short legs.

Bike:
1. Measured the drop from my saddle to the bars (bars were slightly higher than the saddle).
2. Installed new saddle (I had been riding on a demo). and raised about 1cm and then I pedaled. Raised another 1cm and then I pedaled. Raised another 1/2 cm or so and then I pedaled. Each time he took a plumb line measurement from my knee.
3. Took another measurement to see what the drop distance was from saddle to bars.
4. Took bars off and showed me where all of the sweat from riding on my indoor trainer was collecting and cautioned me about corroding the headset and bearings and suggested that I cover the head set while riding indoors.
5. Removed all three spacers under the bars and took some measurements. Remounted my bars with no spacers underneath.
6. I got back on the bike and pedaled. The drop from the saddle to the bars is now ~5.25cm.

Form:
1. Setup a laser that put a line next to the bike and said that the center of my knee should be centered on that line. Also said my knees should be brushing the top tube. This position is pretty far off from where my knees were when I was riding. I rode for 15min or so trying to keep the laser line on my knee. Said that it is very important that I concentrate on keeping my knees in that position when riding.
2. Demonstrated proper posture when riding. Spent more time pedaling while concentrating on keeping my back and shoulders in a proper position. All the while keeping my knees inward to match the laser line.

He said that I appear a little cramped on the bike and suggested that I consider a longer stem. I decided with all of the changes, that I would put some miles on the bike before making that consideration.

Observations:
My default position on the bars now seems to be the hoods. I do notice some more pressure on my hands which I do not anticipate being an issue. The pedals seem to be more beneath (almost feel behind me on the back stroke). Overall it feels like a completely different bike. Pedaling feels stronger in my new position and my posterior definitely feels lighter in the saddle without my bones digging into the saddle.
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Old 01-26-18, 08:29 PM
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Great info. I'm thinking about getting a fit too- after 13 years and 130,000 + miles.
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Old 01-28-18, 10:29 AM
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I'm curious why he did not measure your knee angles with a goniometer. Did he mention knee angle at all to you?
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Old 01-28-18, 07:54 PM
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May I ask where you had the fit done? I had one too today and it went nothing like yours, guy raised my saddle all the way up to tell me I got the wrong bike size.
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Old 01-29-18, 08:11 AM
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Originally Posted by PalmBeachC
May I ask where you had the fit done? I had one too today and it went nothing like yours, guy raised my saddle all the way up to tell me I got the wrong bike size.
I had the fit done at an LBS. I've spent about 6 weeks going into the shop about once per week since they have a saddle loaner program. Every time I would return a saddle to try a new one, I would go in at lunch time and hang around for a while getting advice and asking questions. I found the owner to be very knowledgable and a life long cyclist. He also has some certification in bike fitting and a very good reputation. Their website says they do Retul fittings, but this was not a Retul fitting.
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Old 01-29-18, 08:21 AM
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Originally Posted by linberl
I'm curious why he did not measure your knee angles with a goniometer. Did he mention knee angle at all to you?
He did not measure my knee angle with a goniometer, but he did spend a very long time watching me pedal and woking with me on my form. Maybe he was comfortable with my knee angle from eyeballing it.
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Old 01-29-18, 08:35 AM
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Follow up:
As part of the LBS saddle loaner program, I ended up making my peace with a Prologo Scratch Pro 134mm saddle. Unfortunately the demo was an older model which does not seem to be available any longer. I did purchase an almost identical current model Prologo Scratch 2. After the fit which included installing the new saddle, I went on a 65mi ride (in some brutal wind). I've been training hard so I cannot say how much was due to the fit or the hard training, but I felt better after that 65mi than I have ever felt after a ride of that distance before. That being said, I did end up with a small saddle sore and some numbness after the ride. I am returning to the LBS today with the bike and will see what can be done. Other than that, I had some new aches in my wrists, shoulders and lower back that went away as soon as I got off the bike. I believe this is due to my new position on the bike and are probably a result of losing good form during a long windy ride.
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Old 01-30-18, 01:15 PM
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I spoke with the bike fitter and he says that the fit is correct. His did say that the saddle was angled up slightly and I could adjust it more to level. He also recommended chamois cream and standing off the saddle more often. After 2 days off the bike, I feel that I am healed enough to get in an hour of intervals tonight.
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