Is the correct headset size for the E-160S?

[EchoLima21]

Hi all, can anyone confirm for me if these are the correct headset bearings for the E-160 S?

FSA SA No.57E Orbit Tapered Headset Sealed Bearing 1.5E ZS 1-1/8"-1.5" OD 50mm/62mm

I can't find the precise information anywhere - the best I can do is:
"FSA No.57E Orbit ZS, 1 1/2" lower end and 1/18" upper sealed cartridge bearings"
from the Whtye site. The bit I'm concerned about is their mention of "ZS". Is that important/relevant?

Thanks in advance,

DB

 

[Clubby]

ZS means Zero Stack, so the headset sits flush with the head tube, as opposed to the traditional way with the bearings sitting outside the frame.


Good explanation on Hope site showing the myriad of different versions.

https://www.hopetech.com/_repository/1/documents/HOPEHEADSETS2011Web.pdf

 

[Clubby]

Never used the seller but found these here. Look like the right ones to me.

FSA Orbit 1.5E No. 57E Headset Bearings - Blueseal Bike Bearings™

This Blueseal Bike Bearing kit contains the upper and lower headset bearings needed to replace your FSA NO.57E headset bearings. Specifications: 1 x 1 1/8" Upper Bearing 1 x 1.5" Lower Bearing Premium Marine Grease Blueseal Bike Bearings™ contain Mobil XHP 222 grease. Standard stock bearings...

trailvision.co.uk

 

[KennyB]

I think this is the headset I had on my Whyte 905. Bearings were expensive to replace and sealing was poor so I binned the bottom (and later the top) set and fitted Hope mix and match ones for little more than bearings alone. Much better sealing and still going strong 3 years later.

 

[EchoLima21]

I replaced the lower bearing on my 2020 Whyte E-150 with this a few months ago.
Didn’t have any info, just measured what came out and selected the same size bearing in stainless from Aire Velo Bearings online.
Perfect

ACB518K-SS STAINLESS £16.67

edit. Just looked it up, it’s £20 now

Out of stock, but thanks ?

 

[EchoLima21]

Never used the seller but found these here. Look like the right ones to me.

FSA Orbit 1.5E No. 57E Headset Bearings - Blueseal Bike Bearings™

This Blueseal Bike Bearing kit contains the upper and lower headset bearings needed to replace your FSA NO.57E headset bearings. Specifications: 1 x 1 1/8" Upper Bearing 1 x 1.5" Lower Bearing Premium Marine Grease Blueseal Bike Bearings™ contain Mobil XHP 222 grease. Standard stock bearings...

trailvision.co.uk

Bought and fitted - thanks v much ?