Lower headset bearing for 2012 Giant Trance

Home Forum Bike Forum Lower headset bearing for 2012 Giant Trance

Viewing 5 posts - 1 through 5 (of 5 total)
  • Lower headset bearing for 2012 Giant Trance
  • Premier Icon roverpig
    Subscriber

    Thanks. I was hoping just to replace the bearing though. The cups feel fine.

    Premier Icon roverpig
    Subscriber

    Does anybody know what lower headset bearing I need for a 2012 Giant Trance X2? It’s an overdrive (not overdrive 2) headset. I can’t see any markings on the bearing, but it looks to be 40mm ID 52mm OD around 8mm thick with a bevel.

    Premier Icon roverpig
    Subscriber

    A bit more digging suggests that the headset is the same as the overdrive 2. There is just a reducer in the top bearing to reduce it from 1 1/2 to 1 1/8. The bottom bearing is 1 1/2 in both and that’s the one that I can’t find.

    Premier Icon roverpig
    Subscriber

    In case anybody else comes looking for an answer to the same question, I ended up ordering one of these and it seems to fit just fine:

    http://superstar.tibolts.co.uk/product_info.php?products_id=439

    It seems that basically all you need is a 45×45 ACB with 40mm ID, 52mm OD and a depth of 7mm.

    The 45×45 refers to the fact that there is a 45 degre bevel on both the inner and outer races. ACB means angular contact bearing and the other numbers are just the inner (ID) and outer (OD) dimensions.

    Hope make a replacement bearing that looks as though it might fit and may be better quality than the Superstar one, but I didn’t try it:

    http://www.wiggle.co.uk/hope-15-tapered-headset-cartridge-bearing/

Viewing 5 posts - 1 through 5 (of 5 total)

The topic ‘Lower headset bearing for 2012 Giant Trance’ is closed to new replies.