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AER Series II



Light As AER

Long recognized as the world’s lightest headset, the AER series offers a hybrid steel and aluminum bearing that provides even greater durability and a 35% weight savings over comparable models. Strategic machining and precision contours provide an optimal balance between weight savings and strength. The AER headset is an ideal headset choice for road and mountain bike applications- a high quality durable headset with durability and lightweight performance in mind.

AER series headsets are available at select retailers

Description

Features

Technical Documents

Additional information

Cups and Covers

7075 T-6 Aluminum, contoured and relieved to minimize weight and maximize strength

Crown Race

Aluminum crown race with integrated low-friction seal

Bearings

Lightweight aluminum/ steel hybrid cartridge bearing

ZS44 will take a 41mm bearing
EC44/40 will take a 52mm bearing
EC44/33 will take a 47mm bearing
ZS56 will take a 52mm bearing
IS41 will take a 41mm bearing
IS42 will take a 42mm bearing
IS47/33 will take a 47mm bearing
IS52 will take a 52mm bearing

All complete Cane Creek AER series headset assemblies (top or bottom) will use a 36×45 degree contact angle bearing, with the exception of our IS47/33 and EC44/33 headset assemblies. IS47/33 and EC44/33 will use a 45×45 degree contact angle bearing.

Complete Assembly Weights

IS41 Tall Cover (H15) Top BAA0956K – 40.6 grams
IS41 Short Cover (H9) Top BAA0957K – 39.2 grams
IS42 Tall Cover (H15) Top BAA2958K – 40.8 grams
IS42 Short Cover (H9) Top BAA0959K – 39.4 grams
ZS44 Tall Cover (H15) Top BAA0962K – 52.4 grams
ZS44 Short Cover (H8) Top BAA0961K – 49.8 grams
EC44 Bottom BAA1029K – 39.6 grams
ZS56 Bottom BAA1030K – 39.4 grams
IS52 Bottom BAA1044 – 28 grams

Bearing Weights

41mm Bearing BAA0925A – 12.8 grams
42mm Bearing BAA0926A – 13 grams
47mm Bearing BAA0930A – 17.8 grams
52mm Bearing BAA0927A – 22 grams

Stack Heights

ZeroStack (ZS) — 8mm or 15mm top, 4mm bottom, Integrated (IS) — 9mm or 15mm top, 1mm bottom

Compression Ring

Cup-in compression ring

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Related Reviews

4.6
Based on 114 reviews
Showing 5 of 114 reviews (3 star). See all 114 reviews
David Lynch
David Lynch
Reviewer
3/5

I have been using the original Ergo Control bar ends on my touring bike for about 10 years, they are finally starting to wear out after 50,000 plus kilometers.
I was super excited to see these bar ends reissued because I am about to start a 2 year bike tour around the world.
I received a set of the new version today and can only give them 3 stars...
They have a different shape than the originals.
The new ones are very squared off on the outside of the palm, unlike the originals which contoured off softly downward.
The new finish is ok, I have to try them for a while to see if they are as comfortable and durable as the old ones.
If you know Oury grips, then that describes the tactile feel of the old ones, sticky without being sticky if you know what I mean.
Now for the worst part... the "universal lock system" simply means no lock system. The originals mated with locking grips which had the double lock system or you could simply put them next to any grips you happened to be using.
The new version doesn't have any mating lock system, so if you use grips that have a double lock, you will have to have a ring between the grip and the bar end. That is a bit disappointing.
The new Ergo Control bar ends are still the best bar ends of this type on the market, but missing some of the great features of the originals. Too bad...

6 months ago
Ed
Edus
Verified OwnerVerified Owner
3/5

I really like the concept of these, I found them a bit quirky, took a few tries to get the correct o ring for my bars.. I found that they can get a bit dislodged when hit, but that sorta makes sense as something rigid maky not work. I bought three sets, of the only one is still intact, one had the spreaders/clamping device break and another fellout, luckily I found it… I would say they are worth the cost, but, you might need to be careful with them.. Kind of defeats the purpose. Finally, Cane Creek makes great stuff, I have headsets, BB’s a fork all perfoming flawlessly.

Verified reviewVerified review - view original

7 months ago
Ed
Edus
Verified OwnerVerified Owner
3/5

I really like the concept of these, I found them a bit quirky, took a few tries to get the correct o ring for my bars.. I found that they can get a bit dislodged when hit, but that sorta makes sense as something rigid maky not work. I bought three sets, of the only one is still intact, one had the spreaders/clamping device break and another fellout, luckily I found it… I would say they are worth the cost, but, you might need to be careful with them.. Kind of defeats the purpose. Finally, Cane Creek makes great stuff, I have headsets, BB’s a fork all perfoming flawlessly.

Verified reviewVerified review - view original

7 months ago

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