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AER Series II

Light As AER

Long recognized as the world’s lightest headset, the new AER now offers a hybrid steel and aluminum bearing that provides even greater durability and a 40% weight savings over comparable models. Strategic machining and precision contours provide an optimal balance between weight savings and strength. The new AER headset is now an ideal headset choice for road and mountain bike applications- a high quality durable headset with durability and lightweight performance in mind.

AER Aluminum Lightweight Bearing

The AER-Series hybrid Steel/Aluminum maintains the quality and durability our bearings are known for, while shaving 35% of the weight.

$46.00$70.00

Features

Technical Documents

Got more questions? Check the Headset FAQ here.

Additional information

Cups and Covers

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

Compression Ring

Cup-in compression ring

Crown Race

Aluminum crown race with integrated low-friction seal

Bearings

Lightweight aluminum/ steel hybrid 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.

Interlok®

Interlok® spacer compatible

Stack Heights

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

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