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[Closed] headset tolerances and compatibility

Bike Forum

Last Post by dovebiker 5 years ago

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karnali

Posts: 1925

Free Member

Topic starter

New frame coming and headset required is

IS42/28.6 IS52/40

wiggle do one that will get mn going for tapered steerer but the measurement is

IS42/28.6 IS52/39.8

anyone know if that will work fine or will the 0.2 in the lower cup bearing ( i assume) cause issues?

thanks

Posted : 16/02/2021 9:36 am

the00

Posts: 774

Free Member

That number refers to the lower steerer diameter. 40mm is the approximation of 1.5". 39.8 is also suitable.

Please can you link to headset, I need one the same.

Posted : 16/02/2021 9:43 am

the00

Posts: 774

Free Member

Perhaps this one?
https://www.wiggle.co.uk/brand-x-headset-integrated-tapered-steerer?sku=100278196&utm_source=affiliate-window&utm_medium=affiliates&utm_campaign=Skimlinks&utm_term=Skimlinks&utm_content=Sub+Networks&sv_campaign_id=78888&sv_tax1=affiliate&sv_tax2=5425%7C5509%7C159115&sv_tax3=Skimlinks&sv_tax4=singletrackworld.com&sv_affiliate_id=78888&awc=1857_1613468822_3eff5776487b2fa145878c8288ce27e1

Posted : 16/02/2021 9:48 am

karnali

Posts: 1925

Free Member

Topic starter

certainly is

Posted : 16/02/2021 9:49 am

dovebiker

Posts: 6829

Full Member

The lower bearing sits on a crown race and is self-centring - either size will work

Posted : 16/02/2021 10:33 am

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