Headset bearings

bikeit65

Getting my Planet X RT58 carbon road bike ready so i can use it over the winter and want to replace the existing headset bearings, the old ones have no markings on them, i know this is a long shot but anyone know the size i need?

pippi_langsamer-2

Have you tried emailing Planet-X?

me-109

A bit of Googling finds a Single-track world forum thread which points to it being an FSA Orbit C-40 No.42 ACB tapered headset.

Check the sizes for comparison and don't forget the angles.

bikeit65

pippi_langsamer-2 said:

Have you tried emailing Planet-X?

Weeks ago, still no reply,

bikeit65

me-109 said:

A bit of Googling finds a Single-track world forum thread which points to it being an FSA Orbit C-40 No.42 ACB tapered headset.

Check the sizes for comparison and don't forget the angles.

Thank you.

bikeit65

https://www.airevelobearings.com/product/fsa-orbit-c-40-acb-no42-steel-pair/

Are these the correct bearings?

gethinceri

Measure the current ones, go to simplybearings.co.uk

commuterlegs

I have an aluminium RT-58 and use the Brand X Integrated Tapered Headset - 1.1/8" - 1.5" so that might be an alternative.

paulbnix

Planet X can be a bit obscure with headset bearings.
I have a Px Spitfire and a Hurricane.
The headset bearing for the Spitfire quoted on Px website actually fitted the Hurricane and not the Spitfire.

bikeit65

Update, the bearings I ordered above are a perfect fit for the Planet X RT 58 carbon.