Whats their purpose?

Justo · November 10, 2009, 04:40:21 PM

So can anyone shed some light on why there are those tiny little horizontal grooves on the forks of bikes - you know the ones that run around them, go on for about a couple of inches and the its smooth again before they start again.

And I mean everybike Ive looked at has them. Sure there must be a reason and not a design copy accross all makes and models.

anyone?

bazz20 · November 10, 2009, 04:50:28 PM

there machine marks thats all

Justo · November 10, 2009, 04:52:46 PM

Quote from: bazz20 on November 10, 2009, 04:50:28 PM
there machine marks thats all

I wonder why no manuafacturer machines them out completey so the whole fork is smooth?

vossy · November 10, 2009, 04:58:35 PM

I was told by an old tradie many many maaannnyyy years ago when I was an apprentice that the little grooves around a turned piece of alloy or steel tubing were there to give strength to the turned object. (I asked the same question)
So I took it as "Ok Fair enough" as a 18 year old would.

Believe it or not!

bazz20 · November 10, 2009, 08:08:28 PM

Quote from: Justo on November 10, 2009, 04:52:46 PM
I wonder why no manuafacturer machines them out completey so the whole fork is smooth?

harley do

dragonworld. · November 10, 2009, 08:15:08 PM

Also extra work equals more wear on tooling and more time to do the job, which has to be passed on to the purchaser/user!

On an already expensive piece of componentry, this could make them just too expensive.

Spider · November 10, 2009, 11:11:28 PM

Quote from: dragonworld on November 10, 2009, 08:15:08 PM
Also extra work equals more wear on tooling and more time to do the job, which has to be passed on to the purchaser/user!

On an already expensive piece of componentry, this could make them just too expensive.

yeah, that must be why Ohlins cost a packet, the bloody little rings

loony888 · November 10, 2009, 11:11:51 PM

do you mean the machine grooves that run the full length of the fork leg? or the 4 or so grooves at the top of the fork leg usually about 5mm apart?

paul.

Spider · November 10, 2009, 11:18:19 PM

wouldn't the 4 at the top have to do with leg adjustment to determine head angle/rake?

dragonworld. · November 10, 2009, 11:37:11 PM

Hmmmm, thats a point!!

mattyvas · November 10, 2009, 11:42:00 PM

Yeah I thought they were so you could drop your forks through the triple evenly?
But I'm just a humble picture taker.

loony888 · November 10, 2009, 11:47:53 PM

yep, they are, i didn't want to explain that cause it seemed really obvious and i didn't want to seem condescending.

paul.

Spider · November 11, 2009, 08:35:47 PM

Quote from: loony888 on November 10, 2009, 11:47:53 PM
yep, they are, i didn't want to explain that cause it seemed really obvious and i didn't want to seem condescending.

paul.

whilst I specialise in condescension

DUCMONROB · November 11, 2009, 10:10:22 PM

Quote from: Spider on November 11, 2009, 08:35:47 PM
whilst I specialise in condescension

HELLO! They look pretty!

Is that condecending enough!

mostro900 · November 11, 2009, 10:14:42 PM

Quote from: Spider on November 11, 2009, 08:35:47 PM
whilst I specialise in condescension

is that like when your visor fogs up ?

News:

Whats their purpose?

bazz20

bazz20