Jordan,
I can’t get the road bike fit manager to accept my saddle offset, maybe I’m not reading it correctly:
B: Plumb line, saddle nose to BB behind the BB forward of BB mm
I’m 92mm behind the BB, but the default keeps telling me I need to revise my answer to mm, not cm, I’m certainly not 92cm behind the BB.
I’m sure it’s something simple I’m missing, can you suggest an appropriate edit to my response?
Thanks,
-SD
this is what I was told when I tried:
“We’re not allowed saddle setback of more than 90mm?”
we want to establish a range that allows us to take care of any reasonable input, but flags unreasonable ones. this is mostly to try to catch those who put in cm instead of mm. so, our range for saddle height is something like 550 to 950. yes, the range for saddle setback is 90mm. we can broaden that if we need to
Half the Garmin team couldn’t enter their stats.
I wonder where 90mm came from?
-SD
Virtually no normal people with 80cm+ saddle height can. I originally suggested up to 130mm being allowed.
Jordan,
I can’t get the road bike fit manager to accept my saddle offset, maybe I’m not reading it correctly:
B: Plumb line, saddle nose to BB behind the BB forward of BB mm
I’m 92mm behind the BB, but the default keeps telling me I need to revise my answer to mm, not cm, I’m certainly not 92cm behind the BB.
I’m sure it’s something simple I’m missing, can you suggest an appropriate edit to my response?
Thanks,
-SD
We’ll definitely fix that. As you might imagine, our database of tribike fit parameters is much more extensive than that of road bike fit. So it’s our mistake, as cyclenutnz said.
Jordan,
I can’t get the road bike fit manager to accept my saddle offset, maybe I’m not reading it correctly:
B: Plumb line, saddle nose to BB behind the BB forward of BB mm
I’m 92mm behind the BB, but the default keeps telling me I need to revise my answer to mm, not cm, I’m certainly not 92cm behind the BB.
I’m sure it’s something simple I’m missing, can you suggest an appropriate edit to my response?
Thanks,
-SD
We’ll definitely fix that. As you might imagine, our database of tribike fit parameters is much more extensive than that of road bike fit. So it’s our mistake, as cyclenutnz said.
I’m also wondering how our fits could end up so different when we’re so close to being the same size. You sit well forward on the saddle it seems, pedal somewhat toe down, seem to have your hands really low vs. your forarm extension, yet your positon doesn’t seem to be just a rotated version of my own.
Bike fits are strange like that I guess. Are you still riding in this position?
“Half the Garmin team couldn’t enter their stats… I wonder where 90mm came from”
it came from me. i would need to see evidence that supports your statement above, unless you were being hyperbolic, which is fine. we’ll change it to some larger number. but i would guess the large majority of the garmin team has a saddle nose setback of less than 90mm. but it’s academic, we’ll change it.
the point of the ranges (we have ranges for all metrics) is to keep people from typos or the use of non-conforming denominations (imperial instead of metric, cm instead of mm, etc.). the reason this matters to us is we’ll use the data to determine where it is slowtwitchers are riding in the aggregate. if somebody says he’s riding with saddle height of 80 when he’s really riding with a height of 800 (all measures must be in mm) that 80 really throws off our averages.
“Half the Garmin team couldn’t enter their stats… I wonder where 90mm came from”
it came from me. i would need to see evidence that supports your statement above, unless you were being hyperbolic, which is fine. we’ll change it to some larger number. but i would guess the large majority of the garmin team has a saddle nose setback of less than 90mm. but it’s academic, we’ll change it.
the point of the ranges (we have ranges for all metrics) is to keep people from typos or the use of non-conforming denominations (imperial instead of metric, cm instead of mm, etc.). the reason this matters to us is we’ll use the data to determine where it is slowtwitchers are riding in the aggregate. if somebody says he’s riding with saddle height of 80 when he’s really riding with a height of 800 (all measures must be in mm) that 80 really throws off our averages.
You may be correct, it may not be half. I know they cannot use 3T Doric seatposts currently because they do not have enough offset. I know we had special seatposts made for the AR specifically for them as they needed 35mm offset posts on 73.1 degree frames and our own unique shape meant they had to come frome us. I know Trent Lowe has an offset of 11.4cm and his saddle height is only 741mm. I know many professional road riders use lots of rearward saddle offset to increase the amount of torque applied at low RPM for sustained climbs. I can’t say without looking over all of the fit data that it is exactly 1/2 of the team, but a substantial portion of them and the riders I know from road racing have more than 9cm. What do you think Lemond’s offset is? What about Indurain, Basso, Ullrich, Horner, Hampsten, Chechu…
These guys:
http://www.bikeforums.net/archive/index.php/t-80004.html
These guys:
I understand the need for correct numbers, using a drop down for units would help there, too; that way the metrically challenged can still use the system. I hardly think 92mm thows off your numbers as much as say your 80 vs. 800 example. Hey, I’m not so smart, I have no idea what it takes to get a database like the one your compiling together. I applaud your efforts.
Hey, I also get it’s roadie stuff, not particularly your cup of tea, I had only assumed I was making some error in my submission. Your show, your rules, I’ll just use 90mm.
-SD
“What do you think Lemond’s offset is? What about Indurain, Basso, Ullrich, Horner, Hampsten, Chechu”
i know exactly what lemond’s offset is, as well as the specs for his frames throughout his career, going back to his years as a junior. he is nowhere near the 90mm limit we had imposed. but then he tended to ride square, parallel 55cm, 73° frames. a taller rider at lemond’s seat angle might exceed 90mm.
anyone who’s riding 110+mm of setback at 740mm of saddle height is probably riding south of 70° of seat angle. certainly an extreme outlier, and one wonders whether this is optimized. nevertheless, our aim is not to argue the point, but to provide a range inside of which the great, great majority of riders can satisfactorily enter their fit coordinates. this we will do, and we appreciate the feedback. having someone criticize the ranges inside of this utility means they’re using the utility we built. that makes me happy, and i’ll take that feedback any day.
"What do you think Lemond’s offset is? i know exactly what lemond’s offset is, as well as the specs for his frames throughout his career, going back to his years as a junior. he is nowhere near the 90mm limit we had imposed. but then he tended to ride square, parallel 55cm, 73° frames. a taller rider at lemond’s seat angle might exceed 90mm.
I certianly don’t have that kind of historical record, I thought Greg ended up at 88mm, perhaps I’m misinformed.
His '83 Worlds winning bike is up at the ADT Velodrome. I’ll bring a plumb bob with me on Friday when I head up there, apparently it is exactly as it was since he climbed off it and onto the podium 25 years ago.
Maybe you already have those dimensions?
Thanks again for your valued service.
-SD
Yes, position is still the same. Still the same bike, at least for now. I have a very short torso, perhaps that is part of it? Dunno. I could send you all the relative metrics if you want. Actually, I need to measure it up and post in my profile… I know 90% of the measures, just not some of the small ones like “pad width” (I know the hole setting on my aerobars, rather than the actual width).