Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-06-10, 04:51 PM   #1
TL179
Senior Member
Thread Starter
 
Join Date: Mar 2008
Location: Montreal Quebec, Plateau
Bikes: 91 bridgestone rb-2, Univega viva sport, 04 masi Nouva Strada,Dave Scott Ironman, Changes like every month
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Spoke Length Double Check

Formulas to open pro, 3 cross, I got 296mm does that work out to you guys?
TL179 is offline   Reply With Quote
Old 01-06-10, 05:02 PM   #2
Yo!
Senior Member
 
Yo!'s Avatar
 
Join Date: Jun 2009
Location: Dallas, TX
Bikes: Panasonic NJS Keirin x2, Level Professional, Bianchi CUSS, GT Pulse
Posts: 1,047
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What ERD did you use?

I used 605 when I built to WI hubs, and they were just poking through the tops of the nipples, AKA, just a bit long. Mavic advertises nipple seat diameter at 602, so they tell you to add 3mm for the ERD.

If I built them over again I'd build using an ERD of 603.
Yo! is offline   Reply With Quote
Old 01-06-10, 05:09 PM   #3
TL179
Senior Member
Thread Starter
 
Join Date: Mar 2008
Location: Montreal Quebec, Plateau
Bikes: 91 bridgestone rb-2, Univega viva sport, 04 masi Nouva Strada,Dave Scott Ironman, Changes like every month
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Okay so when you're using a spokcalc its (for 700c) 622- the diameter of your rim right?
TL179 is offline   Reply With Quote
Old 01-06-10, 05:18 PM   #4
Yo!
Senior Member
 
Yo!'s Avatar
 
Join Date: Jun 2009
Location: Dallas, TX
Bikes: Panasonic NJS Keirin x2, Level Professional, Bianchi CUSS, GT Pulse
Posts: 1,047
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Give me the formula hub specs (c-f, flange diameter) and let me see what I come up with.
Yo! is offline   Reply With Quote
Old 01-06-10, 05:53 PM   #5
TL179
Senior Member
Thread Starter
 
Join Date: Mar 2008
Location: Montreal Quebec, Plateau
Bikes: 91 bridgestone rb-2, Univega viva sport, 04 masi Nouva Strada,Dave Scott Ironman, Changes like every month
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
62 flange diameter 31.0 cf 120 old
TL179 is offline   Reply With Quote
Old 01-06-10, 06:53 PM   #6
TL179
Senior Member
Thread Starter
 
Join Date: Mar 2008
Location: Montreal Quebec, Plateau
Bikes: 91 bridgestone rb-2, Univega viva sport, 04 masi Nouva Strada,Dave Scott Ironman, Changes like every month
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
yeah using a 602 I got 290,
TL179 is offline   Reply With Quote
Old 01-06-10, 07:56 PM   #7
TL179
Senior Member
Thread Starter
 
Join Date: Mar 2008
Location: Montreal Quebec, Plateau
Bikes: 91 bridgestone rb-2, Univega viva sport, 04 masi Nouva Strada,Dave Scott Ironman, Changes like every month
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
does [I]that [I]seem correct?
TL179 is offline   Reply With Quote
Old 01-06-10, 08:40 PM   #8
Tomo_Ishi
Riding Engineer
 
Tomo_Ishi's Avatar
 
Join Date: Jan 2008
Location: Tokyo
Bikes: Kiyo Kiyo Kiyo
Posts: 836
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I am getting 292mm on ( http://lenni.info/edd/ )

Complete wheel data

Hub

  • Formula - flip/flop
  • Right flange : 62
  • Left flange : 62
  • Centre to right flange: 31.8
  • Centre to left flange: 31.8
  • Spoke hole : 2.7

Rim

  • Mavic Open Pro (ERD is Mavic's Nipple Seat Dia + 3mm for nipples)
  • Effective rim : 605
  • Offset spoke bed: 0

Spoke length
for 32 spokes


Crosses Right Left Tension L/R
0 272 272 100%
1 274.6 274.6 100%
2 281.9 281.9 100%
3 292.4 292.4 100%
4 304.4 304.4 100%

Last edited by Tomo_Ishi; 01-06-10 at 08:47 PM.
Tomo_Ishi is offline   Reply With Quote
Old 01-07-10, 02:44 AM   #9
filtersweep
Senior Member
 
filtersweep's Avatar
 
Join Date: Mar 2004
Bikes:
Posts: 2,615
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
How many spokes are you using....?
filtersweep is offline   Reply With Quote
Old 01-07-10, 08:26 PM   #10
TL179
Senior Member
Thread Starter
 
Join Date: Mar 2008
Location: Montreal Quebec, Plateau
Bikes: 91 bridgestone rb-2, Univega viva sport, 04 masi Nouva Strada,Dave Scott Ironman, Changes like every month
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
32, Thanks Tomo_ishi. I've been getting varied numbers. But thats the answer thats come up most. I might try and stretch it with 294 because I can get DT competitions in that size for a nice price
TL179 is offline   Reply With Quote
Old 01-08-10, 09:18 AM   #11
ichitz
N-Fred
 
ichitz's Avatar
 
Join Date: Jul 2009
Location: Brooklyn, NY
Bikes: Torelli Tipo Uno (stolen), Peugeot Nice, Mercier Kilo TT
Posts: 1,517
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
the cheapest I found so far is 88 cents for both spoke and nipple @ wheelbuilder.com
http://www.wheelbuilder.com/store/dt...ted-spoke.html

if u know any cheaper ones, plz share
ichitz is offline   Reply With Quote
Old 01-08-10, 11:49 AM   #12
Yo!
Senior Member
 
Yo!'s Avatar
 
Join Date: Jun 2009
Location: Dallas, TX
Bikes: Panasonic NJS Keirin x2, Level Professional, Bianchi CUSS, GT Pulse
Posts: 1,047
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Why use a spoke that's too long for the build to save a few extra dollars?

Buy your spokes at 292mm if you want to do it right. You'll run out of thread if the spokes are too long, and as I mentioned already, using an ERD of 605 will put that spoke right through the top of the nipple; 292mm is already on the longer side.
Yo! is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 09:52 AM.