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31.8 or 35. Wtf?

Electric_City

Torture wrench
Apr 14, 2007
2,047
783
I thought 35mm bars were the new trend. Yet I had a hard time finding a DM stem that was 35. I'm seeing new bikes (ie. Mojo HD) with 31.8 still. Was this a trend like flat bars on DH bikes? Is the 35mm dead?
 

6thElement

Schrodinger's Immigrant
Jul 29, 2008
17,148
14,622
I find the 35mm bars on my newest MTB horribly stiff, would rather stick with 31.8.
 

Electric_City

Torture wrench
Apr 14, 2007
2,047
783
When I Google it I get a ton of stuff to pop up, but when I click on them most show up as 31.8

I was looking on CRC a couple of months ago and found like 5 DM stems that were 35mm.
 

Electric_City

Torture wrench
Apr 14, 2007
2,047
783
Even when I Goggle "35mm direct mount stem", most (not all) that come up are 31.8 when you click on them. I'm not going to lie, I initially wanted an orange one. But that didn't exist in 35. So black was fine. When you go to the links that pop up for 35mm dms 95% seem to be 31.8. I guess I figured this was one of those things The Industry™ would force on us.

Point is, if I stuck with a 31.8 bar, I'd have a ton more choices.
 

slimshady

¡Mira, una ardilla!
Even when I Goggle "35mm direct mount stem", most (not all) that come up are 31.8 when you click on them. I'm not going to lie, I initially wanted an orange one. But that didn't exist in 35. So black was fine. When you go to the links that pop up for 35mm dms 95% seem to be 31.8. I guess I figured this was one of those things The Industry™ would force on us.

Point is, if I stuck with a 31.8 bar, I'd have a ton more choices.
See if any of these two fancy you:


https://www.ebay.com/itm/EASTON-2014-HAVOC-35-STEM-2PC-45-50X35MM-ORANGE-NEW-2031593-W/142777077877



https://www.ebay.com/itm/New-Deity-Intake-35-Direct-Mount-35mm-50mm-Length-Stem-Orange/153572706134
 

Electric_City

Torture wrench
Apr 14, 2007
2,047
783
While we're at it, whats up with $100+ for these things? Others are in the $40 range like the Funn that I bought.
 

canadmos

Cake Tease
May 29, 2011
21,898
21,422
Canaderp
Even when I Goggle "35mm direct mount stem", most (not all) that come up are 31.8 when you click on them. I'm not going to lie, I initially wanted an orange one. But that didn't exist in 35. So black was fine. When you go to the links that pop up for 35mm dms 95% seem to be 31.8. I guess I figured this was one of those things The Industry™ would force on us.

Point is, if I stuck with a 31.8 bar, I'd have a ton more choices.
I think what you're actually seeing is Google's inability to decipher that you are looking for a 35mm bar clamp stem and not a 35mm length stem.

I'm sure there are way more 35mm length stems of the smaller variety which is why you're seeing the search skewed in that direction.

My suggestion is to try it now, again. Computers are dumb, except the ones with le-tits.
 

HardtailHack

used an iron once
Jan 20, 2009
7,663
7,021
I find the 35mm bars on my newest MTB horribly stiff, would rather stick with 31.8.
I found my first 35mm bar to be very flexy, the second one is properly stiff and is a much nicer shape.
With the extra rise trend of late a larger diameter has to beneficial for resisting rotation at the clamp doesn't it?

As this thread is already pretty stupid, I would like to take it a bit more off track-
Seems to me high rise bars are coming back because some bike companies like the look of shorter headtubes with integrated headsets and they run one or no spacers and set the seat at the same height as the grips.
How many people run an Enduro with one spacer and a low rise bar?
For every 10mm spacer you add you'd be knocking off almost 4mm on something like a Stumpy Evo.
I wonder what the effective STA would be when this is set up for an average rider with the seat at full height?

1576312249340.png
 

Bikael Molton

goofy for life
Jun 9, 2003
4,088
1,235
El Lay
My 35mm OD aluminum bars work fine. I’ve never experienced a handlebar that’s too stiff. That isn’t to say that 31.8 or 25.4 even was holding me back because of flex.

The bar is sitting on top of 180mm travel and a 2.5 tire of course.
 

Wuffles

Monkey
Feb 24, 2016
157
98

RaceFace SixC 35mm. Which strangely enough gets a lot of complaints for being too stiff, but it's the Little Bear Porridge for me. Run 'em on all my bikes, and combined with Chromag Squarewave grips my arm pump has dropped to zero.
 

canadmos

Cake Tease
May 29, 2011
21,898
21,422
Canaderp
RaceFace SixC 35mm. Which strangely enough gets a lot of complaints for being too stiff, but it's the Little Bear Porridge for me. Run 'em on all my bikes, and combined with Chromag Squarewave grips my arm pump has dropped to zero.
Interesting tidbit on the grips. They look great and I like the integrated end cap.

Going to have to order some. Might be time to finally move on from the ODI Crosstrainers.

How has the wear on them been?
 

Jm_

sled dog's bollocks
Jan 14, 2002
20,062
10,626
AK
RaceFace SixC 35mm. Which strangely enough gets a lot of complaints for being too stiff, but it's the Little Bear Porridge for me. Run 'em on all my bikes, and combined with Chromag Squarewave grips my arm pump has dropped to zero.
SixC in 31.8. I never think about the bars...so that means they are good?
 

Udi

RM Chief Ornithologist
Mar 14, 2005
4,918
1,213
Like the others here, I've been running SIXC bars for years now, in 31.8 at first and then in the last two generations (including current) of 35mm. No problems and very happy with them, and I've found there is a positive improvement in stiffness + improved control as a result (compared to alloy 31.8), while comfort hasn't really changed. I've kept the same fork/wheel/frame/etc between the changes.

I found it much easier to find 35mm stems and bars both, though I didn't really ask or care for it initially like slimshady. After running both setups for a while though, I'd say at least for my preferences, I do marginally prefer the 35mm - possibly because I still run wider (800) bars which get a bit flexy in the lighter 31.8mm options.

More importantly, google isn't a search engine anymore. I recommend using literally anything else.
 

slimshady

¡Mira, una ardilla!
After running both setups for a while though, I'd say at least for my preferences, I do marginally prefer the 35mm - possibly because I still run wider (800) bars which get a bit flexy in the lighter 31.8mm options.
Gotta agree with you here Udi. As I posted back when I switched to my 35mm bar/stem combo, I tested my two setups back to back, several times. And going back to 31.8 felt like I was loosing control horrifyingly.
 

mykel

closer to Periwinkle
Apr 19, 2013
5,470
4,205
sw ontario canada
Anybody ever ride the Syntace Vector carbon stuff?
I have a 780 x 20mm that I really like, but my only other carbon reference point is an Easton.
Both in the proper 31.8 size.

I like the Syntace much more than the Easton, but was wondering how it compares to the better known labels.
 

6thElement

Schrodinger's Immigrant
Jul 29, 2008
17,148
14,622
Anybody ever ride the Syntace Vector carbon stuff?
I have a 780 x 20mm that I really like, but my only other carbon reference point is an Easton.
Both in the proper 31.8 size.

I like the Syntace much more than the Easton, but was wondering how it compares to the better known labels.
Yes, I've had them on my trail bike for a few years with their 50mm stem. I like them a lot.
 

OGRipper

back alley ripper
Feb 3, 2004
10,732
1,243
NORCAL is the hizzle
I found my first 35mm bar to be very flexy, the second one is properly stiff and is a much nicer shape.
With the extra rise trend of late a larger diameter has to beneficial for resisting rotation at the clamp doesn't it?

As this thread is already pretty stupid, I would like to take it a bit more off track-
Seems to me high rise bars are coming back because some bike companies like the look of shorter headtubes with integrated headsets and they run one or no spacers and set the seat at the same height as the grips.
How many people run an Enduro with one spacer and a low rise bar?
For every 10mm spacer you add you'd be knocking off almost 4mm on something like a Stumpy Evo.
I wonder what the effective STA would be when this is set up for an average rider with the seat at full height?

View attachment 139293
To continue the derail, I personally like shorter headtubes and seatubes. They allow people to make a purchase based on reach/tt length and not worry about ending up with a super tall headtube.

And isn't the Evo a bit of an outlier due to its super slack HA? With most bikes you're not losing that much by adding a spacer or two.

But yeah, as far as effective vs. real STA, the struggle is real. That said, loving my 210mm dropper post on the Megatower.
 

Wuffles

Monkey
Feb 24, 2016
157
98
Interesting tidbit on the grips. They look great and I like the integrated end cap.

Going to have to order some. Might be time to finally move on from the ODI Crosstrainers.

How has the wear on them been?
About normal, I probably get a season of hard riding on the gravity oriented machine, or 3-4 on the more XC bikes. Neither bombproof nor flimsy.
 

Wuffles

Monkey
Feb 24, 2016
157
98
Anybody ever ride the Syntace Vector carbon stuff?
I have a 780 x 20mm that I really like, but my only other carbon reference point is an Easton.
Both in the proper 31.8 size.

I like the Syntace much more than the Easton, but was wondering how it compares to the better known labels.
That's what I used before the SixCs, mostly because you can get them in 12 degree back sweeps. Bars are fine, felt like a high quality piece of kit, and the geometry worked on my older bikes, but not so well on the newer ones.

I'd have no qualms about their performance, but I can get the RF bars for like half the price, and they seem to work.