AER Series II

Description

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