Spoke stretch and rounding down?
01-19-08 | 02:34 PM
#1
Thread Starter
Senior Member
Joined: Nov 2006
Posts: 520
Likes: 2
From: Methuen, Massachusetts
Spoke stretch and rounding down?
Hi all,
I'm going to build a front wheel using an American Classic Micro and a Sun M17A 28h tubular rim radially laced with DT Revolution 1.8-1.5-1.8mm (15/17/15 gauge) spokes.
Spokecalc gave me 292mm spokes but I'm afraid that they are so thin they'll stretch and I'll run out of thread.
Should I get 290's?
Thanks,
Ray
I'm going to build a front wheel using an American Classic Micro and a Sun M17A 28h tubular rim radially laced with DT Revolution 1.8-1.5-1.8mm (15/17/15 gauge) spokes.
Spokecalc gave me 292mm spokes but I'm afraid that they are so thin they'll stretch and I'll run out of thread.
Should I get 290's?
Thanks,
Ray
01-19-08 | 03:18 PM
#2
Over the hill
Joined: Mar 2006
Posts: 24,624
Likes: 1,383
From: Los Angeles, CA
Bikes: Pinarello Nytro, Momentum Transend
My understanding is that spokes don't actually stretch (just tension), but did it give you 292 or was there a decimal?
01-19-08 | 05:26 PM
#3
Keeping A Low Profile
Joined: Oct 2007
Posts: 160
Likes: 0
From: Atascadero, California
Bikes: Specialized Hardrock Sport [1998], Dahon Speed P8 2007, 1994 Diamond Back Ascent and a couple of Schwinn Stingrays [one boys, one girls] from circa 1977.
How much they stretch?? Never calculated it . . . it probably is not worth worrying about when calculating spoke length.
DON
Last edited by dwood; 01-19-08 at 05:35 PM.
01-19-08 | 05:40 PM
#4
Thread Starter
Senior Member
Joined: Nov 2006
Posts: 520
Likes: 2
From: Methuen, Massachusetts
Spokecalc gave me 292.1
Butted spokes will stretch more then unbutted.........
The really thin 15/17 gauge Revolutions will stretch more then 14g strait spokes.
How much is too much?
I don't want to buy a box of 72 to find out I bought wrong. I can't find any spoke suppliers that will sell under a box on the 1.8/1.5's
Butted spokes will stretch more then unbutted.........
The really thin 15/17 gauge Revolutions will stretch more then 14g strait spokes.
How much is too much?
I don't want to buy a box of 72 to find out I bought wrong. I can't find any spoke suppliers that will sell under a box on the 1.8/1.5's
