spoke head / flange angle
10-14-12 | 11:01 AM
#1
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 123
Likes: 0
From: Redmond WA
spoke head / flange angle
Guys
I set out to build up a front wheel this AM, using a ST Swiss 240S disc hub and Wheelsmith spokes. No beveling apparent on the spoke holes, but when I dropped in a spoke it seemed a little tight to me. I am attaching a photo showing that the head of spoke is at an angle w/respect to the plane of the flange. Any concern here? These are 2.0mm straight guage spokes and the manual indicates a 2.5mm spoke hole. TIA!
I set out to build up a front wheel this AM, using a ST Swiss 240S disc hub and Wheelsmith spokes. No beveling apparent on the spoke holes, but when I dropped in a spoke it seemed a little tight to me. I am attaching a photo showing that the head of spoke is at an angle w/respect to the plane of the flange. Any concern here? These are 2.0mm straight guage spokes and the manual indicates a 2.5mm spoke hole. TIA!
10-14-12 | 11:10 AM
#2
Senior Member
Joined: Dec 2007
Posts: 3,518
Likes: 40
From: San Jose, California
Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed
Nothing to worry about...
As you raise the tension and stress relief the wheel throughout the build - (hard squeeze of parallel spokes on both sides for two rotations each time) - the heads and elbows will seat themselves. Make sure you get final tension high.
=8-)
As you raise the tension and stress relief the wheel throughout the build - (hard squeeze of parallel spokes on both sides for two rotations each time) - the heads and elbows will seat themselves. Make sure you get final tension high.
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
10-14-12 | 11:16 AM
#3
Senior Member
Joined: Apr 2009
Posts: 39,897
Likes: 3,865
From: New Rochelle, NY
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
IME the tighter the spoke fits into the flange, the less likely it is to break. However, I suggest that you cold set (bend) the elbow before lacing so the spoke naturally lies in the line it'll have when built. This is similar to what stress relieving does at the end, but does a better job of making sure that the elbow is "relaxed" and not carrying added stresses from being flexed out of it's natural angle.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“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.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“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.
10-14-12 | 11:19 AM
#4
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 123
Likes: 0
From: Redmond WA
Thanks guys! Appreciate the advice from experienced hands, I've built a few wheels but am still pretty green. I keep Jobst's book next to me as I build and cold set the bends every time! After I posted I noticed that the flange on this hub is somewhat concave, so the inbound spokes lay nearly flat, just the outbounds look a little skew.
10-14-12 | 12:09 PM
#5
Banned
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast
Bikes: 8
If there were chamfering around the spoke hole,
that would be for supporting the bend , not the head.
Tough to do without having the flanges machined separately, to do the inside faces..
Nobody does use flange and tube hub construction , any more ..
that Bullseye and original Phil made , decades ago ,
that would be for supporting the bend , not the head.
Tough to do without having the flanges machined separately, to do the inside faces..
Nobody does use flange and tube hub construction , any more ..
that Bullseye and original Phil made , decades ago ,
