Spoke length help

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11/17/2013 2:53 PM

I got a cult free coaster in the mail and i want to lace it to a gsport rollcage. Would anyone know what size spoke id have to use. Any help is appreciated.

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11/17/2013 2:56 PM

Photo

l is the spoke length
rr is the radius of the rim
rf is the radius of the hub flange (measured to the centre of the spoke hole)
f is the offset of the flange from the centre of the wheel
x is the number of times a spoke crosses over another spoke
h is the total number of spokes in the wheel
dh is the diameter of the spoke hole in the hub

This will give spoke lengths which are a fraction of a millimetre too short.

http://www.pijin.co.uk/spokecalc.html
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11/17/2013 3:54 PM

motogrizz wrote: Photo

l is the spoke length
rr is the radius of the rim
rf is the radius of the hub flange (measured to the centre of the spoke hole)
f is the offset of the flange from the centre of the wheel
x is the number of times a spoke crosses over another spoke
h is the total number of spokes in the wheel
dh is the diameter of the spoke hole in the hub

This will give spoke lengths which are a fraction of a millimetre too short.

http://www.pijin.co.uk/spokecalc.html

Rather than go through all this, try calling Dans or Albes. They will help you out so much quicker.

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"Hey anybody ever make that mistake like right when you wake up in the morning and you believe in yourself?" -Kyle Kinane

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11/17/2013 3:57 PM

motogrizz wrote: Photo

l is the spoke length
rr is the radius of the rim
rf is the radius of the hub flange (measured to the centre of the spoke hole)
f is the offset of the flange from the centre of the wheel
x is the number of times a spoke crosses over another spoke
h is the total number of spokes in the wheel
dh is the diameter of the spoke hole in the hub

This will give spoke lengths which are a fraction of a millimetre too short.

http://www.pijin.co.uk/spokecalc.html

dave lawrence wrote:

Rather than go through all this, try calling Dans or Albes. They will help you out so much quicker.

haha if u click the link its a calculator

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11/17/2013 6:57 PM

Usually buying a mm extra is good, but not over that much cause then the spokes will be too long. A mm shorter is okay but the spokes are gonna be pretty damn tight and stuff.

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11/18/2013 11:12 AM

DeviantBMX123 wrote:

haha if u click the link its a calculator

Yea, but you need a micrometer to be accurate with your measurements.

I would call Dans or Albes or Empire.

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"Hey anybody ever make that mistake like right when you wake up in the morning and you believe in yourself?" -Kyle Kinane

"BIKES!" -Tom Segura

11/18/2013 12:03 PM

dave lawrence wrote:

Rather than go through all this, try calling Dans or Albes. They will help you out so much quicker.

DeviantBMX123 wrote:

haha if u click the link its a calculator

dave lawrence wrote:

Yea, but you need a micrometer to be accurate with your measurements.

I would call Dans or Albes or Empire.

it has a list of hubs and rims... of course it hasnt been updated in a while though. so it doesnt have the new fc

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11/20/2013 3:05 PM

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