Looks like you’re bearings may be a little crunchy. Repack to bottom bracket.
__Osiris__ on
Good enough
WorkingZombie2281 on
Doesn’t look bad, you could try loosening the non drive side fixing bolt and see if that changes it. Shimano uses sealed cartridge bearings, they are designed to last but do not necessarily spin freely. Do NOT buy ceramic speed, they are ‘faster’ for maybe 300 miles, after that could quality steel bearings are faster. Ceramic bearings don’t last either.
Silver_Weekend_1980 on
Yes. This is spinning freely enough.
Also – it’s normal to ask this question, but I’ll reassure you and say that you would realise if it wasn’t spinning enough, you would do the same test you just did and it would stop quickly enough that you’d think, “yeah, that ain’t right.”
WalkmanCut on
Maybe preload is slightly to high, but its fine IMO
simpuru_clk on
I can’t blame you for doubting it because seeing people with ceramic bbs does give you the impression that there’s no way the difference is this big but yeah.
Vash_the_stampede73 on
Looks good to me but have you checked if your crank is part of the shimano hollowtech recall?
Infamous_Air9247 on
And more freely than it should.
Don’t forget there are 2 bearings with 4 seals total, grease and a preload against them. The forever spinning cranks shown here and there are either square taper or ceramic with oil and half seal design.
Beneficial-Oven1258 on
Yup. Seals create friction, but it’s not enought to slow you down.
ChillinDylan901 on
You should service the bearings once a year at a minimum?!?
Pizzapug64 on
Can’t help you. But I was wondering what clips those are?
12 Comments
Normal. You could pay more for Ceramic Speed.
Looks like you’re bearings may be a little crunchy. Repack to bottom bracket.
Good enough
Doesn’t look bad, you could try loosening the non drive side fixing bolt and see if that changes it. Shimano uses sealed cartridge bearings, they are designed to last but do not necessarily spin freely. Do NOT buy ceramic speed, they are ‘faster’ for maybe 300 miles, after that could quality steel bearings are faster. Ceramic bearings don’t last either.
Yes. This is spinning freely enough.
Also – it’s normal to ask this question, but I’ll reassure you and say that you would realise if it wasn’t spinning enough, you would do the same test you just did and it would stop quickly enough that you’d think, “yeah, that ain’t right.”
Maybe preload is slightly to high, but its fine IMO
I can’t blame you for doubting it because seeing people with ceramic bbs does give you the impression that there’s no way the difference is this big but yeah.
Looks good to me but have you checked if your crank is part of the shimano hollowtech recall?
And more freely than it should.
Don’t forget there are 2 bearings with 4 seals total, grease and a preload against them. The forever spinning cranks shown here and there are either square taper or ceramic with oil and half seal design.
Yup. Seals create friction, but it’s not enought to slow you down.
You should service the bearings once a year at a minimum?!?
Can’t help you. But I was wondering what clips those are?