Bird Makes its First Carbon Frame with the Aether 9C Trail Bike

Jul 30, 2020
by Daniel Sapp  


PRESS RELEASE: Bird

Bird have released their first carbon bike, the Aether 9C today. The 29" wheeled trail bike sports 130mm of rear suspension designed to be mated to 130-150mm of front suspension. The bike has a 65-degree head tube angle, 430mm chainstays, and a 484mm reach on the ML size.


Size Specific Angles
The Aether 9C is unique for Bird as it's their only bike with size-specific seat tube angles. With taller riders needing a longer seat post, that puts them and their weight further back relative to the wheels of the bike which can create too little weight on the front end and the front wheel lifting up on steeper climbs.

The seat tube angle on the Aether 9C starts at 76.5-degrees on the size medium and steepens to 78-degrees on the size XL. Bird claims this will keep the weight distribution even across sizes. They also increased the head tube stack on each size to aid in rider fit and comfort.



Frame Details
The Aether 9C has the best water bottle clearance of all Bird's full-suspension frames with even the smaller size accepting a 750ml bottle with a piggyback shock. In addition to water bottle clearance, the frame has room for up to a 2.6" tire.

The bottom bracket on the full carbon frame is BSA threaded and there is fully internally guided cable routing with an internal Y-connector that allows the rear brake to be run on the left or right size. The suspension is tuned for efficient pedaling and a lively feel.




Builds
The Aether 9C is available in several different builds as well as a frame only option.

The frame alone sells for £1,700.00 It includes the rear axle, SRAM Universal Derailleur Hanger (UDH), and rubber frame protection on chainstay and down tube. All Bird frame-sets come ready to build with clean chased BB threads, tapped ISG05 mounts and axle threads, as well as a fully faced BB and headset.

Shimano 12-speed builds start at £3,786.50, and SRAM 12-speed builds start at £3,463.50.

There is a complete bike builder on Bird's website that allows users to customize their builds from the ground up. It should be noted that there are certain items that would typically be in the store that are currently low stock which has pushed up the complete prices of bikes for the moment, however, they have plenty of kit available.





For more information, visit bird.bike


127 Comments

  • 50 1
 Lot of hate on this... clearly in the minority here but I think it looks awesome, and that black and silver build, dayum son. For what it's worth, good job Bird!
  • 8 2
 It's weird how people froth over texas-gate looking steel bikes, and then something like this comes out and it gets completely trashed.
  • 9 0
 good looking bike
  • 5 2
 The bike looks really good. Just not a fan of the name.
  • 28 0
 When your carbon frame is cheaper than the mainstream brand's alloy frames. I know it doesn't come with a shock but still very impressive!
  • 6 0
 Great pricing! Hopefully they're actually available on the regular.
  • 16 0
 > fully internally guided cable routing with an internal Y-connector that allows the rear brake to be run on the left or right size

This is such a cool feature, it drives me nuts having my left side rear brake route into the left side of the frame.
  • 2 0
 Trek supports Moto/UK riders with all their bikes.
  • 16 1
 A frame designed around a water bottle! Surely, PB must be happy now.
  • 1 3
 Let's hope, all that rants about water bottle, won't bottling down, Designs.
  • 10 0
 Came for the comments

Love this bike and love the brand!

May not be to everyones taste looks wise but bird bikes have never been the sexiest looking. If, however, youve ridden one youd know Dans engineering, the ride quality and the feel of the bikes are second to none!

You’ll also know if you owned one the customer service is second to none.

Those two facts should be enough to put aside the looks after all, you dont see the bike when you are grinning down the trail
  • 7 0
 CS length of 430mm paired with 541mm Reach for sure is an interesting combination.

Luckily it has a "low bottom bracket for carving turns" (from their webpage). You will have to drive that handlebar pretty hard to carve turns on an XL.
  • 3 0
 This is the longest carbon bike reach I've seen in XL. Nice to have the steeper STA as well. TBH it's a little odd to be paired with the short CS but maybe the STA/Reach are extreme enough that the short rear center isn't so much of a hindrance for a taller rider.
  • 2 3
 @alexsin: I’m skeptical - the actual STAs aren’t that great.
  • 3 0
 @alexsin: As a fellow tall guy, I'd love to try a bike with a reach like this. Also, they've been paying attention and have made the STA steeper as the frame size increases. Thanks Bird!
  • 3 0
 @powderturns: I think the actual seat angle is steeper than most.. Bike manufacturers only provide virtual STA for a reason.
  • 1 0
 juicy detail..... the 430 mm aren't even measured horizontally if the drawings are correct. Might be 427 or something like that.
  • 9 0
 Cheap, not overly horrible to look at (there are far worse out there), geo looks OK. Threaded BB. Trendy standards. Struggling to find much wrong with it to be honest.
  • 5 1
 The aesthetics aren't something that jumped out me when I saw this bike in real life some weeks ago. It looks solid and purposeful, probably more handsome than pretty, but definitely not the ugly that some people see in the pics. Riding it was great fun. I'm an ML sized guy and it felt spot on. Not at all overly long. Bike is planted and super playful, I'd be happy to own one. For context I ride a large Aeris 1.5.
  • 11 5
 The top tube hump aesthetic does not appeal to me. Bike seems like a great value though.
  • 15 4
 My brain likes this bike. My eyes don’t. Very conflicted.
  • 3 2
 My Vitus Escarpe has a similar top tube bump. I agree, it's not very attractive.
  • 1 0
 Does the hunch back increase strength or allow for more reach..both?
  • 1 0
 I was thinking about it and I think a hump or a convex toptube looks odd and equally a concave downtube is weird looking. Other way round looks fine.
  • 1 0
 I should also note I don't think it's an ugly bike, but also not pretty. And I'm a Bird owner so I've nothing against them.
  • 3 0
 I like the aesthetic of the bike and how the top tube how it goes out flat from head tube. It looks better than a droopy top tube that looks more like a ladies cruiser bike.
  • 2 0
 @jrocksdh: I think the hump is there so the shock sits higher in the frame and allows more room for water bottle activities, especially when running a shock with a piggyback.
  • 7 0
 Aether??? I barely even know her.
  • 3 0
 I think YT and Transition hit the nail on the head with aesthetics of a short travel trail bike recently, clean and unbroken lines are just pleasing on the eye, the same reason a lot of the steel bikes are popular aesthetically.

Some of the bikes, like this one, look a bit like they have been in a crash before you’ve put a leg over it.
  • 6 4
 Great price but a bit of a miss aesthetically. These will sell like hotcakes though. Also am I the only one that disregards bikes that don't have size specific chainstays? It doesn't make sense to me that I (6'3) would want the same rear-center as someone under 6.
  • 1 0
 I'm 6'5 and ride the same size bike as you... does that make sense?
  • 4 1
 That is a big bike. The smallest reach available is 455mm. I do wonder if we are going a bit silly with reach numbers on some of these new bikes.
  • 4 0
 I agree. Yes a very long bike feels more stable in fast rough and straight section but it is absolutely compromised everywhere else.
  • 3 0
 @NotSorry: who would have thought....
  • 3 1
 I wouldn't get to hung up on it, seat angle makes a big difference and puts you forward so it feels much shorter than youd think. I've gone from a 435 reach to 490 and was really paranoid it wouldn't work, and in very tight and twisties it doesn't! However for 90% of my riding its more comfy and goes like the clappers
  • 1 0
 I just wish someone made bikes with Large size reaches and Medium sized ETT. The current ETT paradigm does not work for people with bad backs.
  • 2 1
 @skerby: Isn't that one of the things that the more progressive companies are trying to achieve with the super steep seat angles? A long reach when standing, but the seat is in a far more forward position due to the seat angle so the seated reach can actually be quite compact.
  • 1 0
 @thekaiser: not sure why you got downvoted, as that is exactly right. For a given reach, areepening
  • 1 0
 *steepening the seat angle will of course shorten the ETT and make the seated position more upright/shorter
  • 1 0
 So people apparently don't like the design? I guess I am as biased as they come when it comes to Bird, but that's because I ride one. Water bottle with piggyback was discussed a lot in the bird thread here on pinkbike, so I'm glad it's adressed. If it rides anything like the am9, you're not gonna spend much time looking at it anyway. The green is absolutely gorgeous btw. Cheers
  • 4 0
 Nice to see proper XL sizing.
  • 2 0
 Ha ha ????
  • 3 0
 @Richt2000: 5'9" riders shouldn't be out here on xls. If you aren't extra large, you shouldn't worry about extra large bikes.

I for one am tired of xl bikes that I'm cramped up on.
  • 1 0
 @RonSauce:

Have you seen the geo?!?

I’m 6’1 and would be deciding between a ML and L. You’d have to be a giant to eide the XL
  • 5 0
 @Richt2000: believe it or not, some of us giants do like to ride.
  • 1 0
 @Richt2000: Exactly, nice to be able to look at a large size frame and have the option to pick longer size depending on your preference. Usually I'll go straight to the geo and see that the XXL is still too small for a person who is 6'2" - Which isn't that tall
  • 1 0
 Another big plus is the chart giving at least rough visuals of the different sizes. Spent waaay too long scouring the internet for pictures of XL and XXL models. And usually only to find they look like a field gate. Last was the only company that I came across which had actual pictures of their frames in different sizes.
  • 5 1
 Industry take notice: steeper seat tubes for L, XL!!
  • 1 0
 I’ve always been curious about Bird. Almost bought an Am9, great guys, awesome build tool, but that damn exchange rate takes them from a bargain to the same price as Banshee, GG, and others.
  • 5 0
 The AM9 is a great bike and Bird provide by far the best customer service I’ve ever experienced.
  • 1 1
 Just a friendly opinion here... I don't hate, but rather dislike the 'outline' logo. It almost makes it look like they taped the lines ready for painting, but forgot to actually paint. Also that dramatic bend in the downtube reminds of using a ruler to draw a line, and the ruler slipping mid line-drawing.
  • 2 0
 Very impressive pricing! I just don't know if a 512 mm reach in size L would be for me. Seems quite long for a "playful" trail bike.
  • 2 0
 I dont think its bad looking at all. Geo seem on point for todays trends. But they definitely bent up that down tube just to fit a water bottle.
  • 3 0
 All this trash talk ...... but c’mon y’all have to admit you’ve enjoyed riding an ugly bird in the past .
  • 2 0
 Bird offers Miami Vice colors on their AL frames. They are awesome. End of story.
  • 2 0
 Pretty solid pricing at $2200 USD for the frame. Wonder how it rides. Anyone have experience riding their alloy frames?
  • 1 0
 Same price as GG.
  • 2 1
 @Bondseye007: True...and you can't beat that they're made in Colorado. The GG guys are awesome, and their Smash is a really fun bike (I'm sure they all are).
  • 2 0
 A couple people in Colorado (me being one) have AM9s and love them. No nonsense, easy to live with bikes with great geometry and suspension.
  • 3 0
 @srstudent: I'm on my second one, first had a V1 AM9, now on a coil V3 AM9 and honestly wouldn't trade it for any other bike on the market, regardless of budget. Had a go on several other enduro 29ers (Sentinel, Meta AM, Ripmo, owned a Stumpy Evo for an year) and none came close to the AM9.
  • 2 0
 Geo looks great but she looks a bit of a big bird
  • 3 0
 I like it. Looks fun
  • 1 0
 Poor hunch back looks like it has a sore back! Kinda looks how i feel when i wake up
  • 6 8
 It's nearly as ugly as a Guerrilla Gravity. That steepening seat tube wins points for me, though. I'm 6'2" with a 37" inseam, and I've never been able to get on with an XL. Bikes that have a claimed 76° effective STA end up at ~74° by the time I raise the seat waaaaay up. By that point, the ETT is so damn long that the bike is unmanageable uphill.
  • 1 2
 Yea except the GG is manufactured in Colorado.
  • 3 1
 @PHeller: Agreed. We should have lower expectations from our local companies.
  • 1 0
 @PHeller: is that a good thing?
  • 2 0
 One things for sure it won't be cheap cheap.... i will get my coat....
  • 1 0
 I'd really like to see this frame unpainted before making any judgements. Good on 'em though for doing this!
  • 2 0
 pretty sure the "black" one is just clear coated carbon
  • 1 0
 Can anyone see where it states the rear axle spacing?142/148 or new super dupa new standard boost size?
  • 1 1
 Very nice geo. Longer is better, like the girl said

But bird? Maybe put some ”Santa Scott” stickerkit on it and it would rock
  • 1 0
 Just a few degrees(like 80) steeper seattube and then the geo would be perfect
  • 1 0
 The bike is for taller people. All the dimension of the sizes are quite big and they don't have a small.
  • 1 1
 If you, like me, find carbon frames about as appealing as a turd sandwich, there is an alu version of this frame coming in October too.
  • 1 0
 Actually some people in China or Taiwan make the frame/ parts. They now sell a carbon frame I dont think they make it.
  • 1 0
 "Ma-ma-mow, pa-pa, ma-ma-mow, pa-pa
Ma-ma-mow, pa-pa, ma-ma-mow

--------------------------------------------"
  • 6 5
 I came here for the comments.
  • 21 0
 Comments are for the birds
  • 4 5
 Don't you know about the word?

Everybody knows that the bird is the word!

m.youtube.com/watch?v=9AZA6fREkoA
  • 1 0
 I hear ya chirpn bird
  • 1 0
 Legible geo tables please FFS.
  • 4 4
 Bird alu frames looked cool and respected them more for staying away from carbon.
  • 2 0
 Why respected...?
  • 3 0
 What's wtong with offering both?
  • 1 0
 Respect aaaaaiiiiiiit.
  • 1 0
 There is an alu version of this bike coming in Oct.
  • 1 0
 Wasting opportunity to have a pic of someone flipping a Bird
  • 1 0
 Fezzari must’ve shared their copyright.
  • 1 0
 ...but it is better looking than a Niner
  • 1 1
 541mm reach on the XL.. that’s giving Geometron a run for their money
  • 1 0
 I like it. Good looking paintjob as well! Nice Bird!
  • 1 0
 If Bird can manage this why not Turner?
  • 1 1
 looks like a transition bottle rocket
  • 3 3
 Why are there no AEthertons in the video ?
  • 1 1
 Haven't you heard?

Ba-ba-ba-bird bird bird...bird is the word.
  • 1 0
 It’s a plane.
  • 1 0
 Mmmmm, Pisgah bike!!!
  • 1 2
 looks like its had a head on collision.
  • 2 5
 I'm going to eye bleach by squatting over a mirror
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