Olympic bar knurling

Esteemed members:

This is probably a dumb newbie question.
My barbell and weights did not come with
an 'owners manual'.

I upgraded from a cheapie standard set which had
knurling on most of bar.

My new Olympic set (outgrew the 175# standard)
has:
Center: 5.5 inch knurl
next: 6.0 inch smooth
next 9.5 inch knurl
next 0.25 inch smooth
next 8.5 inch knurl
then a wee bit of smooth before the inner collars.
Overall length is 84 inches.

Basic dumb question:

Is there a rhyme or reason explaining
why the knurled / smooth sizes?

I suspect they have something to do with
'For this lift, place your hands here'.

Can someone provide insight to this,
or reference to documentation on this?

THANKS!!!
regards,
eric pearson
nonono.ericp1.nonono@nonono.fuse.net

"eric pearson" <nono.ericp.nono@nonono.fuse.net> schreef:

> I suspect they have something to do with
> 'For this lift, place your hands here'.

Yes.

----
Pete

Pete wrote:
> "eric pearson" <nono.ericp.nono@nonono.fuse.net> schreef:
>
> > I suspect they have something to do with
> > 'For this lift, place your hands here'.
>
> Yes.

Pete doesn't wanna say the word "deadlift" ;-)


Stu

eric pearson wrote:
>
> My new Olympic set (outgrew the 175# standard)
> has:
> Center: 5.5 inch knurl
> next: 6.0 inch smooth
> next 9.5 inch knurl
> next 0.25 inch smooth
> next 8.5 inch knurl
> then a wee bit of smooth before the inner collars.
> Overall length is 84 inches.
>
> Basic dumb question:
>
> Is there a rhyme or reason explaining
> why the knurled / smooth sizes?
>
> I suspect they have something to do with
> 'For this lift, place your hands here'.
>
> Can someone provide insight to this,
> or reference to documentation on this?

From the IPF rules book, bottom of page 7:
http://tinyurl.com/zfus4

The center knurling is for squatting. The 81cm dimension is
the maximum grip width in the powerlifting bench.



K