At the time, I thought Grant's recommendation of PBH minus 10 or 11cm
seemed like a nice simplification of the mainstream performance saddle
height method that became a widespread standard in the 80s. Even though
Grant's advice on frame height and bar height were/are way out of industry
Yes, back when I rode with clipless pedals that had limited float (SPD on
the MTB, Look on the road), I had to set the cleats up carefully taking
into account the width of the cranks. I later switched to Speedplay frogs
with 30 degrees of float. I just needed to ensure that I could rotate my
Well sure Patrick, I get what you mean. It also depends on the pedals
and *their* width too. Back when I rode all straight arms and racing pedals
of any kind I needed a narrow shoe not so much for the cranks but the
pedals were so narrow. On the Stumpie with wider flat cage Suntour pedals
A tangential but related question to that about saddle height: Do you
others who use cycling specific shoes favor different shoes for different
pedals and cranks? I find that even a slight difference in sole thickness
can make a saddle feel awkward; add to this the "flare" of the crank arms
and Q,
I have PBH of 83. My B17 is set at 71.25. I have the pedals that came
with the bike and wear sneakers, marketed as "walking shoes."
Roberta
On Saturday, July 29, 2017 at 7:20:50 PM UTC-4, Christopher Cote wrote:
> I'm curious how many here find that Grant's "rule" about saddle height
>
15 yrs ago I measured my PBH at 83.5 and my saddles were at 72.5 with B17
and up to 73cm with a Flite using 170mm cranks and clipless MTB pedals.
I am currently measuring my PBH at about 83.0 and my saddles are 72.0 +/-
5mm. I notice with thin flat pedals and thinner shoes I can be
Steve Hogg is the master wizard of real world fit, IMHO. His use of a
goniometer to measure leg angle and thus determine saddle height has worked
for me. My local shop has one, so they set the height on the two bikes I
ride the most. I then measured from crank center, in parallel to the seat
I've never measured saddle height, well, I suppose I tried once and I
observed that there appeared to be enough room for error and variability in
measuring based on the type and position of my saddle that I wasn't sure I
could use a tape measure measurement as a baseline to set saddle height
Good point, I do shove the saddle back as far as it goes on an offset seat
post. I've been measuring along the seat tube. That would make a difference.
Chris "trigonometry" Cote
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Hi,
I haven't seen anyone else mention this, but when I set my saddle back,
like way back on the Nitto lugged seat post, I have to measure my saddle
height from BB to where my sit bones go, not parallel to the seat post
tube, thus lowering the saddle more in relation to the ground.
Thanks for the input everyone. Seems like the 10cm delta holds for a lot of
folks, but they're riding with "normal" shoes and pedals. For those of you
in that camp, are you also able to reach the pedals in the down position
with your heels? Just curious.
Chris "just a number"
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You received
Hmmm, I have read most if not all GP wrote, and while message is received,
numbers rarely stick. So, I got out my tape measure: with a PBH of 91, and
Keen bike sandals with a sole of 1.9, my saddle height is 67 cm to center
of crank. I don't think it is the numbers (36", .75", 26.5"), so, I am
Oops!
PBH x 0.8*8*3 = Saddle height.
I ride just a bit lower than that.
On Saturday, July 29, 2017 at 9:52:47 PM UTC-6, Mojo wrote:
> I have a couple of formulas in my garage, using cm:
> PBH x 0.69 = Frame Size
> PBH x 0.833 = Saddle Height
>
> I believe I got these from one of Grant's
I have a couple of formulas in my garage, using cm:
PBH x 0.69 = Frame Size
PBH x 0.833 = Saddle Height
I believe I got these from one of Grant's writings. My Riv custom follows
these formulas. My PBH is 89.2 and Grant built me a 61.5cm frame and my
saddle height is 74cm using 175mm cranks
Don't forget to factor in your crank length.
5mm difference in cranks equals 10mm in the full revolution.
5mm shorter means 5mm less at the top and bottom of the stroke.
Go from 165mm to 175mm cranks and you may find your hip flexor, knees and foot
muscles as well as calf and Achilles' tendons
I think it works well for me and I actually worked backwards and got my PBH
from my saddle height. I have a hard time measuring PBH due to obesity and
my wife and I measured it at 83cm (5'11"). I can straddle an 84cm S.O.
bike and still bend my knees a bit so I know 83cm isn't accurate. From
I ride in sandals as well, and with a midfoot pedal placement, which has my
saddle lower by some amount. I also like a bit lower saddle because I floor
live and so am very used to squatting and bending my knees, preferring a
lower stance, for example, for running.
With abandon,
Patrick
On
My PBH is 88 cm and I put my saddle heights at 78 or 77 cm. That works
well with thicker-soled shoes like Keen sandals, but if I take a ride with
thin-soled shoes like Vibram Five Fingers, that saddle height is too tall.
It's easier to change my shoes than it is to lower (and then raise) the
Oh, and this article mentions the tilted hip thing:
https://www.stevehoggbikefitting.com/bikefit/2011/11/knee-pain/
Chris
On Saturday, July 29, 2017 at 7:20:50 PM UTC-4, Christopher Cote wrote:
>
> I'm curious how many here find that Grant's "rule" about saddle height
> being 10-11cm lower
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