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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
Cups and Covers | 7075 T-6 Aluminum, contoured and relieved to minimize weight and maximize strength |
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Crown Race | Aluminum crown race with integrated low-friction seal |
Bearings | Lightweight aluminum/ steel hybrid cartridge bearing ZS44 will take a 41mm 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 |
Bearing Weights | 41mm Bearing BAA0925A – 12.8 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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These brakes are Sierra Hotel for any rim brake lover. Nothing better on this planet.
Verified review - view original
As a machinist/ME, building MTBs is a nice hobby to have. I have built a few biked over the past couple years and have had trouble with the plastic pre loaders that come on cranks. Theae alloy pre loaders have a better feel of tightness than the original plastic pieces. Gives a builder more confidence that all the play is out of the crank arms. Plus with the color options, it gives a custom build good options for personalized look.
Verified review - view original
As a machinist/ME, building MTBs is a nice hobby to have. I have built a few biked over the past couple years and have had trouble with the plastic pre loaders that come on cranks. Theae alloy pre loaders have a better feel of tightness than the original plastic pieces. Gives a builder more confidence that all the play is out of the crank arms. Plus with the color options, it gives a custom build good options for personalized look.
Verified review - view original
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