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gazzbikes
Ridden
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Joined: Aug 17, 2002
Posts: 233
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 Posted: Wed 9th Jul 9:32pm Post subject: Building Demo 8 Rear Wheel |
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Does anybody have experience building a rear wheel for a Demo 8? I know it's an offset frame of 6mm but I don't know how to figure the spoke calc? DT Swiss one online doesn't seem to allow for this variable.
I can re-dish a wheel from centre but would prefer to start out with the correct spoke lengths if poss.
Ideas?
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Astoria Paranoia
Wrecked
Joined: Aug 20, 2002
Posts: 4,961
Location: It appears that we are at an impass
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| Posted: Wed 9th Jul 9:33pm Post subject: |
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Just move the flange distances 6mm off centre and re-calculate.
ie. move hub in relation to the rim 
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Soba
Thrashed
Joined: Sep 24, 2003
Posts: 1,744
Location: Queeners
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| Posted: Wed 9th Jul 11:27pm Post subject: |
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if you're generous with the non-drive spoke length (ie make sure to round up instead of down) you'll be fine. It's only a turn or two over.
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gazzbikes
Ridden
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Joined: Aug 17, 2002
Posts: 233
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| Posted: Thu 10th Jul 9:49am Post subject: |
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Thanks, the shifting the hub in the equation theory sounds good.
I read Barnett's Manual last night and it gave me a formula for correcting dish error.
Gap at rim in mm's / 8 = number of turns at nipple to correct. Then it's a matter of measuring spoke tension on both sides of the wheel to determine whether to tighten or loosen to correct.
Will scratch my beard a bit more before I get too busy.
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