Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Stringing up nuVinci hub

Old 03-12-14, 06:10 PM
  #1  
adlai
Senior Member
Thread Starter
 
Join Date: Jun 2009
Posts: 499
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Stringing up nuVinci hub

So I got a nuVinci hub. It is sitting on my desk.

Will probably string it up soon. I'm thinking I'll probably build it into a folding mountain bike, so 26" wheels.

So first off, what size spokes?

Later on, I'm going to be wondering what the best cog ratios to get for it. Off the top of my head I'm thinking something like 44 front and 18 back.
adlai is offline  
Old 03-12-14, 06:39 PM
  #2  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 36,049

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 121 Post(s)
Tagged: 1 Thread(s)
Quoted: 4339 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by adlai View Post
So I got a nuVinci hub.

Will probably string it up soon.
Why? what did it do?

Spokes are easy and hard at the same time. Start by deciding what gauge (most people use 14g) and whether you prefer butted or straight gauge, then use an on-line spoke calculator to figure the length. You'll need hub flange dimensional data, along with rim data, then you can calculate the spoke lengths.

As for sprocket selection, it simply depends on how and where you ride. Everyone has his own philosophy in how to set gear ranges. Mine is to cover the low gear I need, then once that's covered, try to set it up so that my normal level ground cruising gear is 3rd from the top. That leaves me 2 higher for tailwinds, or long shallow downgrades. If you already are riding you should know what rations you tend to prefer, calaculate the gear inches, and use the NuVinci to match that at about 85% of the highest gear.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Old 03-12-14, 08:01 PM
  #3  
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Posts: 7,257
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 526 Post(s)
Liked 10 Times in 7 Posts
For a 26" wheel, figure on 1x only, even for 36 spokes. I've only built one of these into a wheel, and that was a 26". Thought I was going to do it 2x but it didn't work. Had to go 1x,, and it turned out fine.
Now that I've said that, check that the new models have the same flange size as the older ones. I know they have changed the hub somewhat.
Dan Burkhart is offline  
Old 03-13-14, 10:28 AM
  #4  
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 41,440

Bikes: 8

Mentioned: 183 Post(s)
Tagged: 0 Thread(s)
Quoted: 6711 Post(s)
Likes: 0
Liked 128 Times in 109 Posts
I can only say what thickness , length depends on the rim you choose. make/brand and model

the 1 X pattern sounds good, basket weaving that cross is unnecessary.
fietsbob is offline  
Old 03-13-14, 12:03 PM
  #5  
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Posts: 7,257
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 526 Post(s)
Liked 10 Times in 7 Posts
Originally Posted by fietsbob View Post
I can only say what thickness , length depends on the rim you choose. make/brand and model

the 1 X pattern sounds good, basket weaving that cross is unnecessary.
Yes, and all spokes either heads in or out, not alternated.
Dan Burkhart is offline  
Old 03-13-14, 01:27 PM
  #6  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 36,049

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 121 Post(s)
Tagged: 1 Thread(s)
Quoted: 4339 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by Dan Burkhart View Post
Yes, and all spokes either heads in or out, not alternated.
Passing the spokes all from the same side has the benefit of creating contact and flex at the cross (basketweaving as Fietsbob calls it). That's the good side. However how good depends on how far out the cross is. When too close to the hub, the bending is too much and it causes problems. If so, then normal in/out lacing without interlacing at the cross is preferred.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Old 03-13-14, 01:30 PM
  #7  
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Posts: 7,257
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 526 Post(s)
Liked 10 Times in 7 Posts
Originally Posted by FBinNY View Post
Passing the spokes all from the same side has the benefit of creating contact and flex at the cross (basketweaving as Fietsbob calls it). That's the good side. However how good depends on how far out the cross is. When too close to the hub, the bending is too much and it causes problems. If so, then normal in/out lacing without interlacing at the cross is preferred.
That's true, but all the 1x builds I've done, even with 20" rims puts the crossing out far enough away from the hub so it's not a problem.

Last edited by Dan Burkhart; 03-13-14 at 01:41 PM.
Dan Burkhart is offline  
Old 03-13-14, 01:39 PM
  #8  
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Posts: 7,257
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 526 Post(s)
Liked 10 Times in 7 Posts
Originally Posted by Dan Burkhart View Post
That's true, but all the 1x builds I've done, even with 20" rims puts the crossing out far enough away from the hub so it's not a problem.
Here's a Rohloff in a 406 rim, 1x, all heads in.


Dan Burkhart is offline  
Old 03-13-14, 02:16 PM
  #9  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 36,049

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 121 Post(s)
Tagged: 1 Thread(s)
Quoted: 4339 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Thanks for the photo. I would probably have built this 1x in/out without interlacing, but can see that your way is fine too.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Old 03-13-14, 02:46 PM
  #10  
rpenmanparker 
Senior Member
 
rpenmanparker's Avatar
 
Join Date: Dec 2009
Location: Houston, TX
Posts: 28,351

Bikes: 1990 Romic Reynolds 531 custom build, Merlin Works CR Ti custom build, super light Workswell 066 custom build

Mentioned: 103 Post(s)
Tagged: 1 Thread(s)
Quoted: 6305 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by FBinNY View Post
Thanks for the photo. I would probably have built this 1x in/out without interlacing, but can see that your way is fine too.
Have you ever used all heads in or out to help with tension balance on a crossed pattern? I do it routinely with radial, but haven't tried it with crossed.
__________________
Robert

Originally Posted by LAJ View Post
No matter where I go, here I am...
rpenmanparker is offline  
Old 03-13-14, 03:35 PM
  #11  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 36,049

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 121 Post(s)
Tagged: 1 Thread(s)
Quoted: 4339 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by rpenmanparker View Post
Have you ever used all heads in or out to help with tension balance on a crossed pattern? I do it routinely with radial, but haven't tried it with crossed.
All in or out, usually isn't possible on any tangent pattern since the spokes get in each other's way. Unless asked I only build radials for the track, and lace elbows out for lateral rigidity (why I went radial in the first place), unless the client says it's a pursuit wheel and he prefers the (slight) aero advantage of elbows in.

My rule is to defer to a client's preference if he gives a reason consistent with the preference, even if I think he's wrong. If his reasoning is inconsistent with the preference, ie elbow in for rigidity, I try to explain where he went wrong, then either do it anyway, or decline the job depending on the situation.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.