DT Swiss Competition Spoke Tension
#1
Senior Member
Thread Starter
Join Date: Jun 2018
Location: The Urban Shores Of Michigami
Posts: 1,749
Bikes: ........................................ .....Holdsworth "Special"..... .......Falcon "Special".......... .........Miyata 912........... ........................................
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 702 Post(s)
Liked 672 Times
in
420 Posts
DT Swiss Competition Spoke Tension
I'm building a set of wheels for my Miyata 912 using Sun M13 ll (700C) rims, small flange hubs and DT Swiss Competition 2.0/1.8/2.0 spokes @ 3X.
What would be acceptable spoke tensions for the drive side and non-drive side spokes? I'm using an old Wheelsmith Spoke Tensiometer.
What would be acceptable spoke tensions for the drive side and non-drive side spokes? I'm using an old Wheelsmith Spoke Tensiometer.
#2
Senior Member
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767
Bikes: lots
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times
in
1,489 Posts
Spoke tension is generally limited by the rim. I'd shoot for 100kg on the drive side. The non drive will be whatever it takes to have the rim centered and the proper tension on the drive side. You don't measure tension on the nds when building wheels. I'm not sure what this equates to on the WS tension meter, I've never used one.
Likes For cxwrench:
#3
Senior Member
Thread Starter
Join Date: Jun 2018
Location: The Urban Shores Of Michigami
Posts: 1,749
Bikes: ........................................ .....Holdsworth "Special"..... .......Falcon "Special".......... .........Miyata 912........... ........................................
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 702 Post(s)
Liked 672 Times
in
420 Posts
Spoke tension is generally limited by the rim. I'd shoot for 100kg on the drive side. The non drive will be whatever it takes to have the rim centered and the proper tension on the drive side. You don't measure tension on the nds when building wheels. I'm not sure what this equates to on the WS tension meter, I've never used one.
#4
Senior Member
Join Date: Dec 2010
Location: northern Deep South
Posts: 8,900
Bikes: Fuji Touring, Novara Randonee
Mentioned: 36 Post(s)
Tagged: 0 Thread(s)
Quoted: 2603 Post(s)
Liked 1,926 Times
in
1,209 Posts
Spoke tension is generally limited by the rim. I'd shoot for 100kg on the drive side. The non drive will be whatever it takes to have the rim centered and the proper tension on the drive side. You don't measure tension on the nds when building wheels. I'm not sure what this equates to on the WS tension meter, I've never used one.
I do check NDS at the end of the build, though. I go around the wheel and see what the range is; it's often below the scale (Park tensiometer) to perhaps 70 kgf. I'll get the low spokes up as close to the high ones without disturbing the true too much. If the high spokes are at 70-75 kgf, I can usually get the low spokes up to at least 60 kgf before the wheel starts to move. Those low tension spokes are the ones that are going to experience cyclic stress going to 0 and back up, fatigue, and fracture if I don't equalize tension as much as possible.
Likes For pdlamb:
#5
Senior Member
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767
Bikes: lots
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times
in
1,489 Posts
Agree with most of this; I normally aim for 105-115 kgf, but the spokes will handle a lot more tension than the rim.
I do check NDS at the end of the build, though. I go around the wheel and see what the range is; it's often below the scale (Park tensiometer) to perhaps 70 kgf. I'll get the low spokes up as close to the high ones without disturbing the true too much. If the high spokes are at 70-75 kgf, I can usually get the low spokes up to at least 60 kgf before the wheel starts to move. Those low tension spokes are the ones that are going to experience cyclic stress going to 0 and back up, fatigue, and fracture if I don't equalize tension as much as possible.
I do check NDS at the end of the build, though. I go around the wheel and see what the range is; it's often below the scale (Park tensiometer) to perhaps 70 kgf. I'll get the low spokes up as close to the high ones without disturbing the true too much. If the high spokes are at 70-75 kgf, I can usually get the low spokes up to at least 60 kgf before the wheel starts to move. Those low tension spokes are the ones that are going to experience cyclic stress going to 0 and back up, fatigue, and fracture if I don't equalize tension as much as possible.
Likes For cxwrench:
#6
Really Old Senior Member
I built my rear @110 kgf DS.
NDS is listed @ 71% per SpoCalc.
135mm Shimano hub
NDS is listed @ 71% per SpoCalc.
135mm Shimano hub
Likes For Bill Kapaun:
#7
Senior Member
I try for at least 100Kg on the drive side on 32 and 36 spoke wheels. The NDS is the tension that keeps the rim centered.
The only time I have had problems with that is with a Power tap hub that had too much offset. It required about 120Kg DS to bring the NDS up to an acceptable level.
The only time I have had problems with that is with a Power tap hub that had too much offset. It required about 120Kg DS to bring the NDS up to an acceptable level.
Likes For davidad:
#8
Senior Member
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767
Bikes: lots
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times
in
1,489 Posts
Right...that's what you'd end up with if the DS was at 110...but you wouldn't put the tension meter on the NDS and try to get 78kgf. It's what they end up at with DS at the recommended tension.
Likes For cxwrench:
#9
Really Old Senior Member
In reality, I only got about 70kgf, not the calculated 78kgf.
Last edited by Bill Kapaun; 09-11-20 at 05:12 AM.