25.4 bars on a 26.0 stem...
04-13-10, 04:03 AM
#1
Elite Member
Thread Starter
Join Date: Jul 2008
Posts: 117
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
25.4 bars on a 26.0 stem...
and it fits perfectly fine. Should I be worried? I've had it a for awhile now and never it has become lose or anything.
04-13-10, 07:06 AM
#3
one life on two wheels
Join Date: Jul 2008
Location: St. Petersburg, FL
Posts: 2,552
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 18 Times
in
15 Posts
I've used a 25.4 bar with a 26.0 stem for two years without one creak or issue. No shim needed sometimes.
04-13-10, 07:27 AM
#4
Senior Member
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Posts: 12,257
Bikes: Bianchi, Miyata, Dahon, Rossin
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 5 Times
in
5 Posts
try this... grab your bars from the front of the bike and lift yourself off the ground with your arms.
if your bars move you should shim it.
if your bars don't move, you don't have to do anything to it.
be sure you grab it at the points furthest from the clamp at the stem while trying the above proceedure.
if your bars move you should shim it.
if your bars don't move, you don't have to do anything to it.
be sure you grab it at the points furthest from the clamp at the stem while trying the above proceedure.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
04-13-10, 07:39 AM
#5
Senior Member
Join Date: Mar 2010
Location: Columbia SC
Posts: 55
Bikes: Surly Steamroller, Cannondale Synapse 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I'm dealing with this problem right now. I just bought Soma bullhorns and they're 25.4mm and my stem is 26mm. I couldn't get my stem tight enough to hold my body weight. I went to my LBS and they recommended buying a shim or cutting up a beer can to use as a shim. I went the beer can route and it's working pretty well. Make sure to place the aluminum pieces on the top and bottom of where the stem connects to the bars(where the screws are).
04-13-10, 07:50 AM
#6
:)
Join Date: Nov 2006
Location: duluth
Posts: 3,391
Bikes: '07 Pista, '09 Fantom Cross Uno, '8? Miyata, '67 Stingray, '0? Zoo mod trials, Tallbike, Chopper, '73 Schwinn Collegiate, '67 Triumph Chopper, '69 CB350, '58 BSA Spitfire, '73 CB450
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Just shim the dang thing.
Over-stressing an aluminum stem and/or bar isn't a good idea. If it fails, it will be bad an you will get hurt.
Over-stressing an aluminum stem and/or bar isn't a good idea. If it fails, it will be bad an you will get hurt.
06-23-11, 01:16 AM
#8
Junior Member
I have new 25.4 North Road bars and an old 26.0 Nitto stem. So when I bought the bars, I bought a Nitto shim, too. But the other day when I went to put on the shim, it wouldn't slide on. There isn't enough extra space to slide the shim into place! So I installed the bars without the shim and tightened the stem nut. The new bars seem secure and, at a quick glance, there's still a few threads of travel left on the stem-tightening bolt. Just wanted to check with you-all. Am I missing something? Is it odd or dangerous to have a 26.0 stem accept and hold a 25.4 bars without a shim required? Many thanks.
06-23-11, 01:34 PM
#10
Veteran Racer
Join Date: Jul 2009
Location: Ciudad de Vacas, Tejas
Posts: 11,760
Bikes: 32 frames + 80 wheels
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 1337 Post(s)
Liked 765 Times
in
432 Posts
I have new 25.4 North Road bars and an old 26.0 Nitto stem. So when I bought the bars, I bought a Nitto shim, too. But the other day when I went to put on the shim, it wouldn't slide on. There isn't enough extra space to slide the shim into place! So I installed the bars without the shim and tightened the stem nut. The new bars seem secure and, at a quick glance, there's still a few threads of travel left on the stem-tightening bolt. Just wanted to check with you-all. Am I missing something? Is it odd or dangerous to have a 26.0 stem accept and hold a 25.4 bars without a shim required? Many thanks.
06-23-11, 11:10 PM
#13
Junior Member
Tejano Trackie: Thanks for your note. Last night, after I posted my message, I decided it was best to install the Nitto shim, so I did it. Had to gently pry open the stem clamp to get the shim to fit, but it wasn't too difficult. I feel better now. I value my teeth!
06-26-11, 06:23 PM
#15
Senior Member
Join Date: Jul 2010
Location: Fogtown
Posts: 184
Bikes: Litton, Gunnar, Iro
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
06-28-11, 02:00 AM
#16
Senior Member
ElliotSF: If you want to be super extra sure, you should totally trade with me. I have two Nitto Technomic stems, 25.4 with moderate reach. In search of 26.0 Nitto stem of similar dimensions. For everyone else: Don't stick handlebars into non-matching stems if you value your face. Shims are acceptable, but you should always check them every few months, grease, etc. to prevent seizing. Over-clamping does not work.
