Singlespeed & Fixed Gear - Spoke Length Double Check

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.
Formulas to open pro, 3 cross, I got 296mm does that work out to you guys?
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.
Okay so when you're using a spokcalc its (for 700c) 622- the diameter of your rim right?
Give me the formula hub specs (c-f, flange diameter) and let me see what I come up with.
62 flange diameter 31.0 cf 120 old
yeah using a 602 I got 290,
does [I]that [I]seem correct?
Tomo_Ishi
01-06-10, 07:40 PM
I am getting 292mm on ( http://lenni.info/edd/ )
Complete wheel data
Hub
Formula - flip/flop
Right flange ø: 62
Left flange ø: 62
Centre to right flange: 31.8
Centre to left flange: 31.8
Spoke hole ø: 2.7
Rim
Mavic Open Pro (ERD is Mavic's Nipple Seat Dia + 3mm for nipples)
Effective rim ø: 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%
filtersweep
01-07-10, 01:44 AM
How many spokes are you using....?
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
the cheapest I found so far is 88 cents for both spoke and nipple @ wheelbuilder.com
http://www.wheelbuilder.com/store/dt-competition-double-butted-spoke.html
if u know any cheaper ones, plz share :)
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.
Powered by vBulletin® Version 4.1.12 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.