I was expecting to drop the top bearing in by hand, but it looks like it's a bit tight on the front (blue arrow) and a bit wide on the side (red arrow).
Is this common in alloy frames or did it take a hit in transit? (New frame)
Also, should I just use force and press it in or is there a more sophisticated way to sort this out? Will it impair the performance of the bearing?
Apologies for the total noob question
They don't always drop in, might need to give it a slight tap with your hand, if it's so tight that it's deforming the bearing then it's damaged I'm afraid
But should go in by hand right? Not press stuff
Not always, I’ve had to pop a few in with a plastic mallet. But they shouldn’t need to be pressed in.
I can’t really tell from the pic, but is the bearing fully level or is it slightly wonky? Can give take a pic from side on?
It could be that the head tube has distorted slightly during welding, rather than a bend. But if the bearing won’t fit then it back to the dealer, I’d say.
Before or after the rubber mallet treatment?
@giofox if it helps you can borrow a digital vernier gauge from me, I'm in E11. I have no idea what the tolerances on the stuff like this is but if you're sending it back at least you're armed with some info.
After. Is the bearing sitting squarely in the head tube in that photo, but there’s still a gap?
It wasn't perfectly square in the photo.
With a bit of love it went in "by hand" followed by a few tap with a hammer and a flat piece of wood.
Thanks all for the tips!
hippy's top tips #276: Same time and angst! Always start with the hammer.
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