Hmm0r tempted... GP4000IIs or whatever they're called are about £40 each?
Does that still make the Fulcrum Racing 3's deal better value? I can't maths today.
No - no it's not.
But i Have no idea what innertube flavour to get - 23/700 tyreses
'Normal' 12-28cm tubes, not the 25-32 or whatever you sometimes find.
700x25mm tyres are nicer than 23mm. The GP4000IIs' can be found for £30-34, sometimes cheaper (ordered mine yesterday for below £30 from Rose inc delivery).
Me last night catching a guy up on Beeley Bar who overtook me at a ridiculous speed going up the previous hill.
The tour of Britain goes up this hill next month, about 2 miles long, one of nicest hills around here for scenery.
https://www.strava.com/segments/2228179?filter=overall
https://www.youtube.com/watch?v=NToQbZksMyc
He was taking it very easy on the descent - hardly pedaling! What a slacker!
Road surface looks amazing and smooth! Jealous!
There is no benefit to ceramic as a material over a steel bearing.
The benefit of ceramic is that it can be machined to a smoother surface than steel to create a smoother rolling bearing. It still needs all the precision machining work put in to make it a better bearing though so a cheaply made ceramic bearing will likely be worse than a properly machined steel bearing.
(ok, maybe ceramic doesnt rust so that would be a benefit over steel but if your steel bearings are dry enough to start rusting then you're probably not all that bothered about rolling resistance anyway)
I'd read about ceramic being hard enough that the bearings destroy dirt and grime rather than gumming up/damaging along with the lack of rust that if looked after will last for many thousands of miles.
I was looking for an 'upgrade' over the standard ones which started making some noises after only 1500 miles.
Giant website says it takes a standard shimano external threaded bottom bracket, so that's hollowtech ii to you and me.
My Defy 1 2015 is hollowtech (ii?). As it's hollow?! But Hollowtech can be threaded and press fit...? In fact the Giant Defy has different BB's in America and Europe, without different model numbers...
I'd previously read (forums) about 'Shimano press fit' (quoted by Giant) as being BB90. But read somewhere today about the BB being 86mm and here it's mentioned as PF86/92 so now I'm totally confused.
The Giant site lists it as 'Shimano press fit' but I know mine isn't Shimano branded, other websites list is as a 'FSA bottom bracket' and with it being an FSA crankset it would make more sense (and explains the lack of branding).
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