Acros Carbon Handlebar and Popular Stem - Review

Mar 2, 2016 at 13:43
by David Arthur  
Acros bars and stem

Acros is a component specialist that has been manufacturing lightweight, high-performance products in Renningen, Germany, for around 15 years. Its range comprises headsets, pedals, wheels, bottom brackets, even a hydraulic shifting system - but for mainstream riders, it's probably not the first name that springs to mind when shopping for a new handlebar and stem.

Acros bars and stem


Carbon Handlebar

That might change with the launch of its new Carbon handlebar, which is manufactured in Germany (unlike so many carbon products made in the Far East). It measures 780mm wide with a 35mm center section diameter, and is available with a 15 or 25mm rise, an 8° back-sweep and 5° up-sweep. It’s pretty light at 196g - a weight that compares well with other carbon handlebars - but its 99kg rider weight limit will be a limiting factor for some. It’s available with a choice of red and white logos (Popular) or black logos (Gothic). MSRP: €149.95, $164,95USD


Popular Stem

If you’re upgrading to a 35mm handlebar, you need a suitable stem. This Popular stem is available in five lengths from 50mm (pictured), to 90mm, It’s beautifully machined from aluminum with a four-bolt faceplate and two steerer-clamp bolts. It’s nicely finished and a pleasant enough design, and weighs 138g. MSRP: €74.95, $79,95USD.
www.acros.de / @acros

Acros bars and stem


Trail Report

I’ve been testing the Acros bar and stem for a couple of months on a 150mm trail bike. They replaced a bar and stem of the same width and length, but with an upgrade in the clamp diameter from 31.8mm to 35mm.The handlebar felt right at home immediately. The angle of the bar put my hands at a comfortable position, with good control when riding at higher speeds and on more challenging trails. Some 35mm aluminum bars I have ridden have felt overly harsh, passing too much vibration through to the hands. The carbon layup of the Acros handlebar got the balance of stiffness to compliance just right, they manage to filter out much of sensation of vibration, something that you'll notice more over smaller, high-frequency bumps than bigger impacts.

If you are a gram counter, the 196g weight (about half an equivalent aluminum bar and lighter than the same width Renthal Fatbar Carbon) means these are some of the lightest 35mm handlebars on the market. Despite the scant weight, I’ve not had any concerns about the strength and durability. Some people would be skeptical of a bar that is so light, but I’ve crashed them and they have yet to explode. The carbon finish has so far proved hard-wearing and durable, and there’s been no problem with grips or brake levers slipping around the bars.

There’s little to report about the Acros Popular stem. It didn’t flex and went about its task of securing the handlebar to the bike. The stem is easy to install with precise fitting hardware, and the finish is exceptionally good, with well-radiused edges. It would be nice to have some more length options, a 35mm would be a welcome addition to the range.


Pinkbike'sTake:
bigquotesUpgrading your handlebar and stem is one of the easiest ways to change the ride and feel of your bike. While the 35mm clamp standard hasn't exactly taken the mountain bike world by storm, Acros has used the larger diameter to design a magnificently lightweight carbon handlebar. If you are in the market for a lightweight, wide, stiff, yet forgiving handlebar and a matching stem with perfect proportions, the Acros kit is worth looking at. - David Arthur





Author Info:
davidarthur avatar

Member since Apr 12, 2015
73 articles

119 Comments
  • 108 3
 Short review but it got the point acros.
  • 42 2
 Should be a popular product.
  • 8 3
 It's a real stem off from their earlier models.
  • 18 4
 But can you handle it?
  • 29 2
 The review is just meant to steer you towards purchasing it.
  • 25 2
 get a grip, you guys.
  • 5 10
flag Bizzam (Mar 14, 2016 at 22:22) (Below Threshold)
 Hold on, these comments are about to get real
  • 4 10
flag headshot FL (Mar 14, 2016 at 23:47) (Below Threshold)
 I came acros this review at just the right time...
  • 8 3
 I cant handle these puns, they're unbarable.
  • 5 4
 Oh steer, these puns are bad
  • 13 4
 We need to raise the bar and see how much we can handle
  • 4 2
 these comments will get a rise out of ya!
  • 1 3
 Can we steer away from the puns
  • 4 2
 I'm done width this pun train
  • 1 2
 The weight of these puns is un bearable
  • 1 2
 @NickKnapton we need to sweep that comment to the side
  • 2 0
 these are the best puns ever, bar none
  • 1 0
 something something clever handlebar pun. hahahahaha
  • 1 0
 Something something, complete
  • 1 0
 Sorry, but I have to TURN down your comments, zippy and rickross
  • 68 3
 99kg weight limit? What is this, a handlebar for ants?
  • 5 2
 And then there's the fact that can't be paired with very short stems.
  • 6 1
 "He's absolutely right?!"
  • 33 2
 oh chub chub is angry. im gonna poke him with a stick.
  • 6 0
 If you want to ride without weight limits, you have to ride old skool. Titec Hellbent.
  • 5 1
 I think a handlebar with a weight limit might break if you hucked to flat too hard or if you had to bail.
  • 5 2
 99kg is over 200 lbs. Still sketchy to see a weight limit on a bar. XC only in my eyes
  • 38 1
 Need to be more careful with wording IMO... "when upgrading to 35mm...". Should read 'when changing'. As 35mm isn't an upgrade in many peoples books!
  • 7 1
 I was thinking the exact same thing when reading that. "Up-sized" would have also worked.
  • 1 2
 Agreed. 'upgrade' and 'running' get used all the time when the sentence makes absolutely no sense. Annoys the hell out of me.
  • 2 1
 Agree. 35mm is not an upgrade, just a different size.
  • 26 1
 It scares me when components start getting too light. Especially when they are with handlebars. Because if your handbar suddenly spits in two and impales you while you fall, its not going to feel good.
  • 11 1
 Especially when it has a 99kg weight limit... what if you're 80kg and you like to huck stuff? Or the bar suffers an impact and you don't notice?
  • 14 0
 Like thats my biggest fear. Hucking to flat and your bar explodes at the stem and goes into your stomach as your body slamming mother nature. Carbon everywhere inside your body
  • 21 1
 heres an idea... aluminum bars
  • 2 1
 I've had a handlebar split in two.. Luckily half of the bar stayed clamped in. The other half dropped away and rolled me down onto my shoulder, so luckily it sent me into a kind of tuck-and-roll. They weren't fancy carbon though.
  • 4 0
 Yeah I have BooBars haha. But sometimes I want carbon. Then I dont
  • 3 0
 I have broken 2 bars and bent one and I wasn't even hucking very big. Broke both carbon and aluminum bars. I'd rather not skimp on the weight on this part of my bike.
  • 2 0
 If they put a 99kg weight limit on it, it's probably able to handle a shit ton more weight and hucks on top of that. They're probably partly saying that so that no one ever hears about anyone snapping one so good reviews and more sales
  • 2 0
 i twisted a straitline directmount stem with carbon easton havoc bars in a 31.8 none the less. carbon is strong, if you get it from the right manufacturer.
  • 18 0
 He keeps touting 35mm is an upgrade like it will somehow add to the biking experience. It seems most opinions on this are that 35 is worse or you couldn't tell the difference.
  • 21 1
 Welcome to Pinkbike reviews - where everything is 5/5
  • 9 0
 Eh I'd give it a 5/7.
  • 3 0
 35mm is a true marketing scam seeing as the difference between 31.8mm and 35mm is so small most people won't notice. I remember reading an article on pinkbike recently where someone openly admitted to that.
  • 21 2
 I have a 35mm bar, and it looks sick, but honestly I can't tell any difference
  • 32 3
 That's what she said
  • 9 4
 Ride harder Smile
  • 12 1
 The trick is to find riders with small hands...makes your bar look huge!
  • 4 2
 Are we still talking about mtn biking?
  • 12 3
 as far as I know the acros carbon handlebars are made in a special layup process which allows to make every handle bar last exacty the same cycles in testing. I know all you US guys are focused on a lot of subjective marketing blabla which germans or europeans aren't; we need some proof of data.
you are concerned about a wheight limit of 99 kg if you have a closer look at teh website teh handlebar lasts the multiload test requirements which are the highest in teh industry!?
what ever it's your choice, but for my point of view I would trust more in a brand which takes really care about their products espacially in a case of the handlebar which is a high quality made in germany product and not a cheap in production vietnamese or cambodian carbon sausage.
cheers from a "usually sausage lover" :-)
  • 3 1
 teh spelling needs some teh work
  • 6 0
 I trusted your input until you said sausage lover
  • 12 0
 What happens if you weigh 98.5kg and stop for coffee and cake?
I'd take a spare aluminium dh bar in the bag just in case
  • 9 1
 Watch out, that spare aluminum DH bar will get you 0.3kg closer to the weight limit!
  • 5 0
 There is no 'what if I stop for cake'. I always stop for cake....and weigh 98kilos. I might also be known for getting a bowl of chips in too.
  • 7 0
 The answer to that question is obvious: This bar isn't for you!
  • 5 0
 Oh my goodness, I could turn so hard into corners with those bars, you can't even imagine how hard I could turn with just that specific set of bars. It's utterly, and completely unfathomable. I honestly could never pay enough for that unrelenting, insurmountable, vastly superior sensation of laser direct cornering.
  • 1 0
 The next turn I do with those bars will be heard around the entire universe.
  • 4 0
 they make hydraulic gear systems and your reviewing a bar and stem? priorities please pinkbike.


Also 99kg weight limit is wild, i imagine most riders throw on 10-15kg of clothing/rucksack/stuff so that really must limit their potential demographic for these bars. but how many companies actually specify a max rider weight for their bits? it could just be to cover their asses. then again if your entertaining weight weenies they should be pretty lean and welterweight themselves.
  • 1 0
 replying to my own comment; 195g isnt actually that light; my 31mm? (normal oversize bars?) carbon bars on my trials bike are 205g and theyre a hundred quid a throw, they arent made in the eu but theyre wildly bespoke for trials and they have no weight limit.
  • 4 1
 Instead of reviewing a bar and stem identical to every other bar and stem out there (except the weight limit) can you review something like they're wheels? Or hydraulic shifting? You know something worth reviewing
  • 35 1
 "..can you review something like they're wheels'?" So, review the bar and stem as if they are wheels?

So this acros bar and stem did not roll very fast, we found they created too much rolling resistance, almost as if they were just scraping along the ground and not actually rotating. We couldn't find a plus sized tyre to fit, in fact no tyres at all fitted on this bar and stem combo. 5/5 Really impressed.

You're welcome!
  • 2 0
 OMG not another wheel standard, I thought we'd only just upgraded to Boost
  • 3 1
 They're wheels? They look like controlly bits for hands
  • 5 0
 @DirtyDee i actually laughed out loud while reading your review. thank you.
  • 2 1
 Looks really good.
But why would I buy this brand when my Raceface Atlas stem and SixC Carbon 35mm bars and stem is so nice?
Not to mention how commonly available,warranted and discounted in many places?
  • 1 1
 "150 mm trail bike". Im stoked that everyone else is finally willing to admit what Santa Cruz bicycles has known since they built the first 150mm travel trail (enduro) bike" about 15 or so years ago. No, not the Nomad. The BULLIT. The first real 150mm trail bike. Those dudes were waaaaaaaaaaaaay ahead of their time.
.....Ok...... I feel better now. ????
  • 3 1
 $164,95USD

Thanks expensive!

*not complaining about cost... , instead of . in the pricing.
  • 1 1
 For a carbon bar that's reasonable!
  • 2 1
 I'm happy with my 31.8 RF SIXC 785mm low rise bars on my Syntace Megaforce 2 60 stem. I have found that the 35mm bars are too stiff for my liking and hurt my hands.
  • 2 2
 Surprised they still make stems without the top lock feature..just looks so much more tidier and makes it that little bit easier to install and set up..Otherwise you get that big untidy gap in the top of the stem...
  • 2 0
 35mm handlebar really popular on the market?
  • 2 0
 Why no chode-ish 35mm stem? You have to cater to the tuna cans..
  • 9 7
 Never buy parts with a weight limit.
  • 13 2
 Why not? I weigh 65kg with all my riding kit. Am I supposed to ride parts that are made for 200kg riders ALL THE TIME? Maybe I'd like to cut some unnecessary weigh from my bike because proportionally it makes a bigger difference to me than to heavier riders.
  • 3 7
flag Extremmist (Mar 15, 2016 at 3:07) (Below Threshold)
 @SintraFreeride or have a steak instead of your croissant and get big like us Big Grin
*OpeningTheNationalStereotypesBox*
  • 4 4
 ORLy Axxe? So you are sceptical becausethey did testing? Does Hussefelt or Octane One give weight limits? No. What does it mean? That it may be anything between 60 and 180kg?
  • 3 1
 @Extremmist lol I like being lean and mean it makes me a better climber.
  • 1 1
 I dunno. Croissants have a lot of carbs and butter, so I'd imagine the fat content and calories to be similar between that and a steak of similar mass.
  • 2 1
 @sintrafreeride - excellent point. I'm around 100kg, so I look at it from the other side. Why would someone over 1/3 lighter want to incur the weight and handling penalty of stuff made for my size/weight? Why would I want to be stuck with gear madenfor people much lighter than me? It seems like such an obvious thing to offer bikes in spec packages aimed at heavy and light riders, respectively.
  • 2 0
 We are talking about grams here not pounds. Go hit the gym more if you cant handle an extra 50g lol
  • 2 2
 For the record I ride a 18kg DH both up and downhill so it's not by getting a carbon handlebar that my bike will get significantly lighter. I laugh when I read a tester complain about a 13kg trail bike I wish my bike weighed 16kg!!!
However, I don't think it is a bad idea to make products weight specific. XC cranks and DH cranks are not built with the same strength so why not bars, frames, etc?
  • 1 0
 @cuban-b in theory you're right, but:
a) You don't build muscles from eating croissants
b) To eat the same mass as a nice big steak you'd need to eat about 5 of them...
  • 1 1
 Ooor you can eat a broccoli and put a handful of cashew nuts into your mouth. You need soooo much protein cuz you lift soooo hard bro.
  • 1 0
 @WAKIdesigns I actually do, hence I eat between 150-200 grams of protein a day. Mountain biking is my number 2 sport.
  • 2 1
 Good on you bro. But steak? Stick to eggs, bacon, chicken and fish man. I started using hemp protein, disgusting, but I don't fart like a V12, like I do after whey stuff, which I have no clue about what it contains.
  • 1 0
 Bacon? I want to get big, not fat, why the hell would I eat bacon?
If you want healthy fats, eat some nuts or fat fish like salmon or fish oil.
  • 1 1
 There's no need to overreact with bacon when you enjoy steaks. Shpeck! I love Hranolky z Bryndzou. Gulasz z Knedlami is one of the best things ever Wink
  • 1 0
 Oh That's right - I forgot that protein is more beneficial to building lean muscle. Let them eat bacon!
  • 2 2
 99kg rider weight limit---- it's probably not the first name that springs to mind when shopping for a new handlebar and stem. Makes sense.
  • 2 0
 Looks like they made a Turbine stem...
  • 2 0
 Chromag BZA bars and 35mm stem combo
  • 1 0
 99kg rider weight limit
What does it fckn means?! Seriously, it doesnt mâle any sense
  • 3 1
 Vut dus it meeeeen?!?!
  • 1 0
 I dunno der stund !!!
  • 2 0
 Ahhhhhh Noooooo i am confoosed ma brain it hurrtttsss
  • 1 0
 @Jack-McLovin ahah :-)
  • 4 4
 780mm / 196g / 99kg limit / 35mm / $164,95USD... WHAT THE HELL ? AND WHY ?
  • 1 0
 Well that's one way to make sure you have a popular stem.
  • 1 0
 oooooo another stem that looks like everyone else's... creative!
  • 2 1
 Weight limit? Lame!
  • 2 2
 looks like a session
  • 3 6
 I don't buy bike parts with weight limit on them.
  • 1 0
 you alright?
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