DT RR rims drilling offset, i.e., right or left handed, European or American, et.c
12-12-12, 09:40 AM
#1
Junior Member
Thread Starter
Join Date: Sep 2011
Posts: 177
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked 0 Times
in
0 Posts
DT RR rims drilling offset, i.e., right or left handed, European or American, et.c
I built up a DT RR 465 a few weeks ago and could not detect any staggering of the spoke hole drillings, which is to say that the rim appeared to be neither right hand nor left hand drilled as Sheldon would call it. I am about to build up an RR 440 asymmetrical and, again, cannot detected any "handedness." Am I right about this, or is there a very subtle offset that I am missing? Another question...when building with the asymmetric rim, I am assuming that the spoke holes should be closer to the drive-side flange in order to increase the tension on the nds spokes. Correct?
12-12-12, 09:50 AM
#2
Junior Member
Thread Starter
Join Date: Sep 2011
Posts: 177
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked 0 Times
in
0 Posts
I've answered my second question: I was wrong. Spoke holes closer to nds to reduce bracing angle. First question stands.
12-12-12, 09:55 AM
#3
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 38,671
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: 140 Post(s)
Tagged: 1 Thread(s)
Quoted: 5767 Post(s)
Liked 2,541 Times
in
1,407 Posts
Offset (zigzag) spoke holes actually increase the left/right spoke tension difference, so many rims are drilled straight down the middle. The same may apply to rims drilled offset to the left side for use in the rear (this does reduce the tension difference).
On some rims the zigzag offset is so slight that it can be missed. If in doubt check with a flexible straightedge like a flexible steel rule or a piece of cardboard. Lay it along three or four holes and see that they all line up. But some rims that are drilled straight down the middle are sometimes drilled at right/left angles to improve nipple seating. So check the outer surface for zigzag offset also.
Many years ago Mavic drilled spoke holes angled in sets of 4, forward/back & left/right. This was a nice idea and spokes lined up well on the large flange hubs of the day, but it was a royal PIA because it wasn't documented well and drove builders nuts. Mavic dropped the idea pretty fast.
On some rims the zigzag offset is so slight that it can be missed. If in doubt check with a flexible straightedge like a flexible steel rule or a piece of cardboard. Lay it along three or four holes and see that they all line up. But some rims that are drilled straight down the middle are sometimes drilled at right/left angles to improve nipple seating. So check the outer surface for zigzag offset also.
Many years ago Mavic drilled spoke holes angled in sets of 4, forward/back & left/right. This was a nice idea and spokes lined up well on the large flange hubs of the day, but it was a royal PIA because it wasn't documented well and drove builders nuts. Mavic dropped the idea pretty fast.
__________________
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.
12-12-12, 10:03 AM
#5
Senior Member
Join Date: Dec 2010
Posts: 8,951
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Likes: 0
Liked 13 Times
in
12 Posts
On some rims, the holes are staggered and don't lie in the same plane, but his alone doesn't determine handedness as the stagger is the same if you flip the rim over.
On some rims the DS and NDS holes are drilled at different angles which can be tricky to see. This can be true for rims where there isn't any stagger and all the holes lie in the same plane.
12-12-12, 11:03 AM
#6
Senior Member
Join Date: Jan 2005
Location: Baltimore, MD
Posts: 5,364
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 2479 Post(s)
Liked 2,948 Times
in
1,674 Posts
Sort of. The holes are closer to the NDS primarily to increase the very shallow bracing angle on the DS.
On some rims, the holes are staggered and don't lie in the same plane, but his alone doesn't determine handedness as the stagger is the same if you flip the rim over.
On some rims the DS and NDS holes are drilled at different angles which can be tricky to see. This can be true for rims where there isn't any stagger and all the holes lie in the same plane.
On some rims, the holes are staggered and don't lie in the same plane, but his alone doesn't determine handedness as the stagger is the same if you flip the rim over.
On some rims the DS and NDS holes are drilled at different angles which can be tricky to see. This can be true for rims where there isn't any stagger and all the holes lie in the same plane.
12-12-12, 12:25 PM
#7
bike whisperer
Join Date: Dec 2009
Location: Melbourne, Oz
Posts: 9,537
Bikes: https://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=152015&p=1404231
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1523 Post(s)
Liked 716 Times
in
508 Posts
Many years ago Mavic drilled spoke holes angled in sets of 4, forward/back & left/right. This was a nice idea and spokes lined up well on the large flange hubs of the day, but it was a royal PIA because it wasn't documented well and drove builders nuts. Mavic dropped the idea pretty fast.
Anyway, I didn't really know what I was doing but it went like a dream, partly cause the rims showed me how to lace the wheels.
__________________
Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
List of US/Canada bike co-ops ~~~ Global list
Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
List of US/Canada bike co-ops ~~~ Global list
12-12-12, 04:34 PM
#8
Senior Member
Join Date: Feb 2005
Location: Oklahoma
Posts: 9,438
Bikes: Trek 5500, Colnago C-50
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 7 Times
in
6 Posts
DT 465 spoke holes are right down the middle, no offset.
The 465 rims have "double" eyelets meaning that each eyelet is secured to both the outer and inner wall of the rim making them stronger and more crack resistant.
The new 440 rims are "single" eyelet secured to only the outer wall. Based on my experience with DT road rims I would rather have the double eyelets on the rear wheel.
YMMV
The 465 rims have "double" eyelets meaning that each eyelet is secured to both the outer and inner wall of the rim making them stronger and more crack resistant.
The new 440 rims are "single" eyelet secured to only the outer wall. Based on my experience with DT road rims I would rather have the double eyelets on the rear wheel.
YMMV
Last edited by Al1943; 12-12-12 at 04:45 PM.
12-12-12, 08:57 PM
#9
Junior Member
Thread Starter
Join Date: Sep 2011
Posts: 177
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked 0 Times
in
0 Posts
I would rather have 'em too. Unfortunately, my hub (WI T11) is such that an asymmetric rim is necessary. Pretty sure there are no double eyeleted rims out there.
Thread
Thread Starter
Forum
Replies
Last Post
ClarkinHawaii
Bicycle Mechanics
14
07-05-15 04:57 PM
ehilge
Bicycle Mechanics
14
03-06-15 06:08 PM
cycle_maven
Bicycle Mechanics
6
09-26-11 08:29 AM
