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Technical & Reference Section => Tech and Restoration => Topic started by: Glen on September 15, 2009, 02:26 PM

Title: 3 cross or 4 cross
Post by: Glen on September 15, 2009, 02:26 PM: Am I right in thinking this is 4 cross spoke pattern? seeing as 4 spokes cross eachother?

(http://www.radbmx.co.uk/archive/albums/v519/cython2/bikes/DSC07140.jpg)
Title: Re: 3 cross or 4 cross
Post by: SaMAlex on September 15, 2009, 02:34 PM: Yep :daumenhoch:
Title: Re: 3 cross or 4 cross
Post by: mileyboy on September 15, 2009, 02:48 PM: what length spokes are they? 194?
Title: Re: 3 cross or 4 cross
Post by: SaMAlex on September 15, 2009, 02:55 PM: Quote from: Glen on September 15, 2009, 02:46 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. :-\
Title: Re: 3 cross or 4 cross
Post by: Daletsunami 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
Title: Re: 3 cross or 4 cross
Post by: fouronethreeoh! 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/ (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.
Title: Re: 3 cross or 4 cross
Post by: SaMAlex 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.

Quote from: Glen on September 15, 2009, 03:01 PM
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!

(http://www.radbmx.co.uk/archive/albums/r313/alexleech/wheel4.jpg)

(http://www.radbmx.co.uk/archive/albums/r313/alexleech/wheel3-1.jpg)

(http://www.radbmx.co.uk/archive/albums/r313/alexleech/wheel2-1.jpg)

(http://www.radbmx.co.uk/archive/albums/r313/alexleech/wheel1-1.jpg)
Title: Re: 3 cross or 4 cross
Post by: moley 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
(http://www.danscomp.com/faq/images/3_cross_wheel.jpg)

4 cross pattern
(http://www.danscomp.com/faq/images/4_cross_wheel.jpg)
Title: Re: 3 cross or 4 cross
Post by: kuwahero 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
Title: Re: 3 cross or 4 cross
Post by: moley on September 15, 2009, 03:45 PM: Quote from: kuwahero on September 15, 2009, 03:43 PM
on same side of hub

:daumenhoch:
Title: Re: 3 cross or 4 cross
Post by: fugazi 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?
Title: Re: 3 cross or 4 cross
Post by: moley 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)
Title: Re: 3 cross or 4 cross
Post by: moley 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
Title: Re: 3 cross or 4 cross
Post by: moley on September 15, 2009, 03:52 PM: Calculator (it looks very easy to use) :-\

http://www.machinehead-software.co.uk/bike/spokes/spoke_length_calculator.html
Title: Re: 3 cross or 4 cross
Post by: trasher on September 15, 2009, 08:04 PM: just get it right glen ,,,,this was my last effort :-\ went for 3x

(http://www.radbmx.co.uk/archive/albums/v716/glenbett/FF0OHJ4UR6EP27QVTCMEDIUM.jpg)