OCLV Frame Sizing

"Dana VanDen Heuvel" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Just a quick question about sizing and OCLV Frame.

I'm being led to believe that if you normally ride a 56cm
in

most

Quoted message said:

other frames, that a 58cm OCLV is actually the
proper size to

ride.

Quoted message said:

Can anyone confirm or deny that?

I'm a 5'10" rider w/a 32" inseam, and typically ride
56cm c-c

bikes.

Trek measures the OCLVs from the center of the bottom
bracket to the top of the seat collar -- and not the top (or
center) of the top tube. So yes, the OCLV may be about 2cm
shorter in the same nominal size. -- Jay Beattie.

[email hidden] (Dana VanDen Heuvel) wrote in
:"]news:[email hidden]:

Quoted message said:

I'm being led to believe that if you normally ride a 56cm
in most other frames, that a 58cm OCLV is actually the
proper size to ride.

Treks are measured to the top of the seat post collar, which
is 2-3 cm bigger than a c-c size.

In article <[email hidden]>,
[email hidden] says...

Quoted message said:

Just a quick question about sizing and OCLV Frame. I'm
being led to believe that if you normally ride a 56cm in
most other frames, that a 58cm OCLV is actually the proper
size to ride. Can anyone confirm or deny that? I'm a 5'10"
rider w/a 32" inseam, and typically ride 56cm c-c bikes.

go by top tube length.
------------
Alex

Quoted post said:

Originally posted by Ken
[email hidden] (Dana VanDen Heuvel) wrote in
:"]news:[email hidden]:

Quoted message said:

I'm being led to believe that if you normally ride a 56cm
in most other frames, that a 58cm OCLV is actually the
proper size to ride.

Treks are measured to the top of the seat post collar, which
is 2-3 cm bigger than a c-c size.

Yeah, but one still has to consider TT length which for a 58 oclv is 57cm.

[email hidden] (Dana VanDen Heuvel) wrote in message news:<[email hidden]>...

Quoted message said:

Just a quick question about sizing and OCLV Frame.

I'm being led to believe that if you normally ride a 56cm
in most other frames, that a 58cm OCLV is actually the
proper size to ride. Can anyone confirm or deny that?

Trek is one of the few frame makers using center-to-top
sizing. And since the OCLV tubes are pretty thick, you're
looking at probably at least 3/4" from the center of the top
tube to the top of the tube. So yeah, 56 = 58 (Trek) is
probably about right.

James

Dana: Trek OCLV framesets are measured from the center of
the bottom bracket all the way to the top of the seat
collar, which extends above the top tube by about a cm. So,
a 60cm TREK is about the same size as most other 57cm center-to-
center frames.

At 5'10", you're most likely a 58cm kind of guy (going by
what we've sold in the past, which is quite a few of them).
And if it makes you feel better, you're the same height as
Lance and he rides a 58cm.

--Mike-- Chain Reaction Bicycles www.ChainReaction.com

"Dana VanDen Heuvel" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Just a quick question about sizing and OCLV Frame.

I'm being led to believe that if you normally ride a 56cm
in most other frames, that a 58cm OCLV is actually the
proper size to ride. Can anyone confirm or deny that?

I'm a 5'10" rider w/a 32" inseam, and typically ride 56cm
c-c bikes.

Thanks for your help!

- Dana - dana[at]danavan.net

Quoted post said:

Originally posted by Mike Jacoubowsk


At 5'10", you're most likely a 58cm kind of guy (going by
what we've sold in the past, which is quite a few of them).
And if it makes you feel better, you're the same height as
Lance and he rides a 58cm.

[at]danavan.net

I'm a 6' kind kind of guy and ride a 58 oclv 5200. I thought Lance was 5'11", not that it really matters. There is more to it than just how tall one is.

"Mike Jacoubowsky/Chain Reaction Bicycles" <[email hidden]>

Quoted message said:

Dana: Trek OCLV framesets are measured from the center of
the bottom bracket all the way to the top of the seat
collar, which extends above the top tube by about a cm. So,
a 60cm TREK is about the same size as most other 57cm center-to-
center frames.

I'm curious why they'd measure them that way - it seems to
be a method of measurement that tells you nothing except
perhaps the length of the seatpost you need.

C'mon Mike - get the folks at Trek to choose one of the two
other "standards"... ;-)

Mark Hickey Habanero Cycles habcycles.comhabcycles.comOpen ↗ Home of
the $695 ti frame

I'm 5'11 with a 32" inseam and recently purchased a Trek
5200. I started with a 56, but during the bike fitting it
became clear this was too small and my LBS obligingly
swapped it for a 58 which fits me nicely. I do believe the
OCLV frames run small, at least for someone like me in my
late 50's whose body is not quite as flexible as it used to
be. I don't know if this is a result of the way they measure
their frames or the position they expect you to ride in.

Jonathan Sachs

"Mike Jacoubowsky/Chain Reaction Bicycles"
<[email hidden]> wrote in message
news:<[email hidden]>...

Quoted message said:

Dana: Trek OCLV framesets are measured from the center of
the bottom bracket all the way to the top of the seat
collar, which extends above the top tube by about a cm.
So, a 60cm TREK is about the same size as most other 57cm
center-to-center frames.

At 5'10", you're most likely a 58cm kind of guy (going by
what we've sold in the past, which is quite a few of
them). And if it makes you feel better, you're the same
height as Lance and he rides a 58cm.

--Mike-- Chain Reaction Bicycles www.ChainReaction.com

"Dana VanDen Heuvel" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Just a quick question about sizing and OCLV Frame.

I'm being led to believe that if you normally ride a
56cm in most other frames, that a 58cm OCLV is
actually the proper size to ride. Can anyone confirm
or deny that?

I'm a 5'10" rider w/a 32" inseam, and typically ride
56cm c-c bikes.

Thanks for your help!

- Dana - dana[at]danavan.net

dana-<< normally ride a 56cm in most other frames, that a
58cm OCLV is actually the proper size to ride. Can anyone
confirm or deny that? >><BR><BR>

The answer is a definite maybe. Seattube length means ohhh
so little. Seattube ANGLE and top tube LENGTH is what
matters. Rememeber a size '56' for one many=ufacturer can
sometimes be vastly different in another, in terms of the
two dimensions mentioned.

Also inseam means little as well, as it applies to
standover. Femur length as it applies to seat tube ANGLE is
what is important.

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St.
Boulder, CO, 80302
(303)440-3535 vecchios.comvecchios.comOpen ↗ "Ruote convenzionali
costruite eccezionalmente bene"

"Qui si parla Campagnolo " <[email hidden]> wrote in message
"]news:[email hidden]...

<Snip > Femur length as

Quoted message said:

it applies to seat tube ANGLE is what is important. <snip>

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St.
Boulder, CO, 80302
(303)440-3535 vecchios.comvecchios.comOpen ↗ "Ruote convenzionali
costruite eccezionalmente bene"

Peter: Could you elaborate on this? How would you equate
femur length to the seat angle? Is the some sort of formua
to figure it out? I have short femurs and have a devil of a
time finding something correct.

Many thanks for your numerous, very informative postings! I
never have to wonder "Hmm, I wonder what his point is"?

Dave Thompson

"Qui si parla Campagnolo " <[email hidden]> wrote in message
"]news:[email hidden]...

<Snip > Femur length as

Quoted message said:

it applies to seat tube ANGLE is what is important. <snip>

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St.
Boulder, CO, 80302
(303)440-3535 vecchios.comvecchios.comOpen ↗ "Ruote convenzionali
costruite eccezionalmente bene"

Peter: Could you elaborate on this? How would you equate
femur length to the seat angle? Is the some sort of formua
to figure it out? I have short femurs and have a devil of a
time finding something correct.

Many thanks for your numerous, very informative postings! I
never have to wonder "Hmm, I wonder what his point is"?

Dave Thompson

Dave Thompson said:

"Qui si parla Campagnolo " <[email hidden]> wrote in
message news:20040513090604.26979.00001246@mb-
m12.aol.com...

<Snip > Femur length as

Quoted message said:

it applies to seat tube ANGLE is what is important.
<snip>

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St.
Boulder, CO, 80302
(303)440-3535 vecchios.comvecchios.comOpen ↗ "Ruote
convenzionali costruite eccezionalmente bene"

Peter: Could you elaborate on this? How would you equate
femur length to the seat angle? Is the some sort of formua
to figure it out? I have short femurs and have a devil of
a time finding something correct.

I think you need a steep seattube angle because it puts you
more forward with a given saddle height and saddle position.
A seatpost with no setback will also help you I think.

Quoted message said:

Many thanks for your numerous, very informative postings!
I never have to wonder "Hmm, I wonder what his point is"?

I think Peter can explain this much better than I did.

Lou

Dave Thompson said:

"Qui si parla Campagnolo " <[email hidden]> wrote in
message news:20040513090604.26979.00001246@mb-
m12.aol.com...

<Snip > Femur length as

Quoted message said:

it applies to seat tube ANGLE is what is important.
<snip>

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St.
Boulder, CO, 80302
(303)440-3535 vecchios.comvecchios.comOpen ↗ "Ruote
convenzionali costruite eccezionalmente bene"

Peter: Could you elaborate on this? How would you equate
femur length to the seat angle? Is the some sort of formua
to figure it out? I have short femurs and have a devil of
a time finding something correct.

I think you need a steep seattube angle because it puts you
more forward with a given saddle height and saddle position.
A seatpost with no setback will also help you I think.

Quoted message said:

Many thanks for your numerous, very informative postings!
I never have to wonder "Hmm, I wonder what his point is"?

I think Peter can explain this much better than I did.

Lou

Quoted message said:

I'm curious why they'd measure them that way - it seems to
be a method of measurement that tells you nothing except
perhaps the length of the seatpost you need.

C'mon Mike - get the folks at Trek to choose one of the
two other "standards"... ;-)

Mark: If only you knew...

In my perfect world, all frames would be measured by the
distance from the center of the bottom bracket to the point
where a line drawn across the top of the top tube would
intersect the center of the seat tube. Obviously, for a
sloping top tube, you'd have to have an imaginary parallel
top tube that you're measuring for.

To me, center-to-center measurements lost their relevance
once we left a world where just about all bikes had the same
diameter top tube (25.4mm).

--Mike Jacoubowsky Chain Reaction Bicycles
www.ChainReaction.com IMBA, BikesBelong, NBDA member

I'm 5'10" with a 33" inseam and relatively long arms and I
ride and love my 56cm OCLVs. Measured traditionally, the
top tube is 56cm and the seat tube is about 54.5 (center to
top of tube).

The top tube is the most important dimension for bike fit.
On most frames, the seat tube is roughly the same length as
the top tube at the 56cm size, so if you ride 56s normally,
the top tube will probably fit you on the 56cm OCLV. But
that's just theory -- you should try the 56 and the 58 out.

If you kept everything else (angles, length of other tubes)
constant and lengthened the head and seat tubes 1.5 cm to
make the 56cm OCLV look more like a traditional 56cm frame,
I would think the change wouldn't affect anything except how
much road shock the frame absorbs -- the handling
characteristics are dictated by wheelbase, stem length,
steering angle, and none of that would change. And when
people talk about a bike that fits, they're usually mainly
talking about a bike that has nice handling characteristics
(although Bernard "the biggest frame is the best" Hinault
often meant a bike that soaked up bumps on the road well).
And again, you should ignore all of this and ride both sizes
for a while to see which feels best. Especially for such a
pricey bike.--Shayana Kadidal