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Bike fitting question for 6' 3". 60 or 63 cms?

9.8K views 18 replies 15 participants last post by  function  
#1 ·
I am 6' 3" with a 35" inseam and am planning to buy my first road bike, a Windsor Knight from BD. I used competitive cyclists fit calculator and it is suggesting a CC of 57.6 to 61.0 (the range of competitive, eddy and french fits). The range for the TT lenght is coming out to 56.3 to 57.9 cms. I have been agonizing with these numbers not wanting to order from BD and then not getting the right fit. The data from BD is that the 60 cm frame has a CC of 55 cm and TT of 58.5. The 62 cm frame has a CC of 57 and TT 59.5. Could someone suggest which one would be a good fit.

Also the standover is 32.5" for the 60 frame and 33 for the 62 frame. As my inseam is 35 I feel that the 62 frame would be a good fit but the TT for that frame goes beyond the suggested range given by competitive's fit calculator.

I am in a dilemma having to make a choice between the two. Visiting several LBS did not help as none of them had a 62 that I could try out.

Any suggestions would be appreciated.
 
#6 ·
It all depends on what top tube you need. I am 6' 2". my main bike has a 58 TT along with a 130 stem. My secondary bike also has a 58 TT, but has a 135 -73 quill stem. My other bike has a 57.5 TT and has a 140 -73 quill stem. The frame sizes range from a 55 compact, to a 59 and a 60.
 
#7 ·
Like others have said, don't stress on seattube size. Watch your TT length and HT length. I'm 6'3" and I like about a 58.5TT w/ a 130 stem. I also have a 59.5TT bike with a 120 that works too.

With the smaller size you're also going to have a lower bars-to-saddle position for the same amount of spacers. I personally would rather ride a bike with a longer TT and shorter stem than a "correct" TT and a stem pointing straight up and a bunch of spacers.
 
#8 ·
TACSTS said:
With the smaller size you're also going to have a lower bars-to-saddle position for the same amount of spacers. I personally would rather ride a bike with a longer TT and shorter stem than a "correct" TT and a stem pointing straight up and a bunch of spacers.
Could you clarify this for me. I get that a longer TT will have a shorter stem, and that a correct TT ends up having a stem pointing up? Wouldn't the correct TT then be longer than the 'long' one?? Sorry if I sound confused.

Anyway it looks like more people are having a 58 TT.
 
#11 ·
Rajarajan said:
Could you clarify this for me. I get that a longer TT will have a shorter stem, and that a correct TT ends up having a stem pointing up? Wouldn't the correct TT then be longer than the 'long' one?? Sorry if I sound confused.

Anyway it looks like more people are having a 58 TT.
What I was trying to get across is that on most bikes the difference in headtube length between a 60 and 62 is going to be ~20mm. Now that means is you might be able to run the 62 with a 110 stem and minimal spacers, or you'll run the 60 with a 120-130 and either a high-rise stem or a big stack of spacers to get the bars in the same position relative to your saddle to make up for that 20mm shorter HT.
 
#13 ·
I like longer TT

Reading the posts here, it makes me feel almost like my bikes are too long. I'm 6'-2.5" tall with a 35" inseam and I ride bikes with at least a 59cm TT with a 130 stem (that's my shortest fit) My favorite fitting bikes have "square" geometry of 61cm c-c seat tubes and 61cm TT length with 130mm stems. I had those custom fit and built when I lived in England. I've had shorter TTs on other bikes and felt cramped. But, everyone is built differently....I'm slim with long arms, long femurs and pretty decent flexibility. So I like bikes longer and lower.
 
#15 ·
Top tube, top tube, top tube. I'm 6' tall, with a 35" inseam (f to c). My latest custom frame has a 56cm virtual ST, a 55cm virtual TT, and a 110mm stem. It fits me like a glove. Anyway, my fit person claims that my legs are perfect for an off the rack 58cm ST bike, while my torso is perfect for a 56 ST bike.

Not sure if you want pics, but i can put some up.

Might be worthwhile to get a good fit person to help you out..
 
#16 ·
Rajarajan said:
I am 6' 3" with a 35" inseam and am planning to buy my first road bike, a Windsor Knight from BD. I used competitive cyclists fit calculator and it is suggesting a CC of 57.6 to 61.0 (the range of competitive, eddy and french fits). The range for the TT lenght is coming out to 56.3 to 57.9 cms. I have been agonizing with these numbers not wanting to order from BD and then not getting the right fit. The data from BD is that the 60 cm frame has a CC of 55 cm and TT of 58.5. The 62 cm frame has a CC of 57 and TT 59.5. Could someone suggest which one would be a good fit.

Also the standover is 32.5" for the 60 frame and 33 for the 62 frame. As my inseam is 35 I feel that the 62 frame would be a good fit but the TT for that frame goes beyond the suggested range given by competitive's fit calculator.

I am in a dilemma having to make a choice between the two. Visiting several LBS did not help as none of them had a 62 that I could try out.

Any suggestions would be appreciated.
I tried using the calculator on competive cyclist. It also gave me some weird measurements that I could never find on a stock bike. The calculator is pretty much worthless, I wouldn't give it any thought. Other than getting fit at a shop, you'll have better luck here finding out what other people of similar proportions are riding.
A 56 TT is too short for you. Probably something in the 58-60 TT range, but you'll probably want to try a couple out to see which feels most comfortable to you.
 
#17 ·
my 61cm squares

I like the looks of your setup....well balanced with nothing extreme.

Here are my two 61cm "square" bikes (TT = ST). The green Hewitt was custom fit and built for me by Paul Hewitt in the UK. Lugged 853 steel w/Chorus. The black/red Barron was built to match the fit of the Hewitt by Barry Barron, also in the UK. Fillet brazed 853 ProTeam steel w/Record. Both are 61cm ST c-c and 61cm TT c-c with 130mm stem.

These are my favorite fitting bikes. Again, I am long-limbed, slim and have been riding on the road for almost 20 years.
 
#18 ·
velomonkey said:
Here is mine. 63cm and I am just a shade over 6'3". I took two spacers off the fork, so the bars are a bit lower. The post seems to be reasonable to me.

I'd like to see other people's setup.
nevermind.