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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  3 cross or 4 cross
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Author Topic: 3 cross or 4 cross  (Read 11030 times)

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Glen

  • Guest
3 cross or 4 cross
« on: September 15, 2009, 02:26 PM »
Am I right in thinking this is 4 cross spoke pattern?  seeing as 4 spokes cross eachother?


SaMAlex

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Re: 3 cross or 4 cross
« Reply #1 on: September 15, 2009, 02:34 PM »
Yep  :daumenhoch:

mileyboy

  • Guest
Re: 3 cross or 4 cross
« Reply #2 on: September 15, 2009, 02:48 PM »
what length spokes are they? 194?

SaMAlex

  • Guest
Re: 3 cross or 4 cross
« Reply #3 on: September 15, 2009, 02:55 PM »
thanks, so im also right in thinking most bikes today use this 4 cross pattern?


I think alot of bikes use 3 cross cos they are easier to build / easier to replace spokes.
4 Cross is said to be stronger, but I dont know how much difference it really makes.  :-\

Daletsunami

  • Guest
Re: 3 cross or 4 cross
« Reply #4 on: September 15, 2009, 03:12 PM »
isn't 3 cross with 184 sized spokes and large flange hubs?

I've built all my wheels with large flange like this and then used 194 to lace up small flanged hubs with a 4 cross patern

fouronethreeoh!

  • Guest
Re: 3 cross or 4 cross
« Reply #5 on: September 15, 2009, 03:21 PM »
I've used the spoke length calculator on here.
You can select rims/hubs from drop down boxes, or input the data into he boxes.

http://www.dtswiss.com/

Four cross means follow one spoke line and it should cross four other spokes. Your wheel is laced 4 cross, you have missed one intersection nearest the hub.

SaMAlex

  • Guest
Re: 3 cross or 4 cross
« Reply #6 on: September 15, 2009, 03:23 PM »
Your pic isnt right. You have missed off a red oval on the tiny cross right at the hub. They bearly even "cross" but it counts

The green oval isnt to do with the "Cross". Thats just cos they are laced in mirrored pairs.




Please post a pic of 3 cross


It just so happens that I have 4 (New school) wheels in my car today, and they are ALL 3 cross!










moley

  • Guest
Re: 3 cross or 4 cross
« Reply #7 on: September 15, 2009, 03:42 PM »
Pick a spoke and see how many other spokes it crosses on the same side as the hub!!

If its 3 its 3 and if its 4 its 4.

4 cross will use longer spokes because the hub will be twisted more than 3 cross!!

3 cross pattern


4 cross pattern
« Last Edit: September 15, 2009, 03:46 PM by moley »

Offline kuwahero

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Re: 3 cross or 4 cross
« Reply #8 on: September 15, 2009, 03:43 PM »
in simple terms

3 cross - goes under two spokes and over one

4 cross - goes under three spokes and over one

on same side of hub

moley

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Re: 3 cross or 4 cross
« Reply #9 on: September 15, 2009, 03:45 PM »

Offline fugazi

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Re: 3 cross or 4 cross
« Reply #10 on: September 15, 2009, 03:48 PM »
I think I'm right in saying that normally 36 spoke wheels are laced 3 cross & 48 spoke 4 cross?
Do you grovel to your master? Do you beg like a dog?

moley

  • Guest
Re: 3 cross or 4 cross
« Reply #11 on: September 15, 2009, 03:50 PM »
Low flanges should accomodate 4 cross.

High flanges tend to have less crosses.

Most 48's are probably 5 cross (I think)

moley

  • Guest
Re: 3 cross or 4 cross
« Reply #12 on: September 15, 2009, 03:51 PM »
The more spokes a wheel has, the higher the cross number for a similar spoke angle. 48 spoke wheels are usually built cross 5, 40 spokes, cross 4; 36 spokes, cross 3 or 4; 32 spokes, cross 3; 28 or 24 spokes, cross 2...

In the case of unusually large hubs, particularly large hubs in small rims, fewer crosses are often indicated, to avoid bending the spokes where they exit the nipples. For example, the Rohloff Speedhub has 32 spoke holes, but is usually laced cross 2.

From Sheldons

http://www.sheldonbrown.com/wheelbuild.html#spoke_patterns

moley

  • Guest
Re: 3 cross or 4 cross
« Reply #13 on: September 15, 2009, 03:52 PM »

trasher

  • Guest
Re: 3 cross or 4 cross
« Reply #14 on: September 15, 2009, 08:04 PM »
just get it right glen ,,,,this was my last effort  :-\ went for 3x

« Last Edit: September 15, 2009, 08:06 PM by trasher »

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