ACROS AZ-55 Headset Lower Part 1 1/8 + 1.5 Inches Press Fit ZS55/30+40

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Description of ACROS AZ-55 Headset Lower Part 1 1/8 + 1.5 Inches Press Fit ZS55/30+40

Symbolic picture: Details of the pictured headset may differ slightly in appearance.

To maximize the compatibility with different fork steerers, bikes and frames, the upper and lower parts of ACROS headsets are being offered separately in a great variety of dimensions.

The semi-integrated ACROS AZ-55 Headset Lower Part features the newest seal technologies from ACROS and high-end bearings in stainless quality for 1 1/8" or tapered forks and frames with a 55 mm inner diameter headtube.
Precisely manufactured angular contact bearings made of stainless steel form the heart of the AZ-55 and offer play-free and smooth steering characteristics for a long time.

VULCANIZED SEALING
New for the year 2017 is a sturdy vulcanized seal bonded to the compression ring and the base plate as an additional and first barrier against water and dirt.

V-LIP
In addition to the new vulcanized seal on the compression ring and the base plate, the sealing discs of the bearings now have a special v-groove double split lip (V-LIP). Furthermore, the V-LIP is recessed in a fine polished groove, which significantly increases the sealing effect once again.

The name ACROS AZ-55 describes the semi integrated (also known as press fit or zero stack) Ahead headset for 1 1/8" or tapered forks (two different crown races are included in delivery) and frames with a 55 mm inner diameter headtube. The S.H.I.S. denotation (see attachment) for the lower part offered here is ZS55/30 (with the 1 1/8" reducer crown race) or ZS55/40 (with the 1.5" crown race).
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Fact Sheet of ACROS AZ-55 Headset Lower Part 1 1/8 + 1.5 Inches Press Fit ZS55/30+40

Product Name: ACROS AZ-55 Headset Lower Part 1 1/8 + 1.5 Inches Press Fit ZS55/30+40
Manufacturer: ACROS
Item Code: ACR319465
Year: 2019
Material: headset cup: aluminium
bearing: stainless steel
Weight: approx. 53 gram (manufacturer information)
S.H.I.S.: ZS55/30+40
Construction type (Ahead/Thread): Ahead
for fork diameter: 1 1/8" or 1.5"
Stack height in mm: 3 mm
Cup skirt length in mm: 10 mm
Included in delivery: 1x lower part of the headset, 1x 1.5" crown race, 1x 1 1/8" reducer crown race
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Selection: ACROS AZ-55 Headset Lower Part 1 1/8 + 1.5 Inches Press Fit ZS55/30+40
Still 1 in stock in stock, delivery time 11-12 days Color black
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