Never seen this happen. Working with bikes for couple of years. Have you tightened the left side correctly?
avexdev on
poor installation
nnnnnnnnnnm on
Knock off parts?
JonDankstophanes on
Needs way more grease on that thing. Like I’ve seen them slather in copper anti seize, and that seems to work well.
lantern264 on
Put it full of grease, mine gets nasty after 6 months due water damage as well.
GenericName187 on
Judging by the level of rust, you might be leaving your bike outside or riding in a wet, slushy environment with salted roads?
Also, saw your other post about the chainring rubbing. Are you sure you did not get a new bottom bracket with a shorter spindle length?
I have had good luck with SunLite and FSA bottom brackets. Tange/IRD is the upgrade choice if you want to spend a bit more.
ActualOpposite7904 on
Why is so much water getting in and why isn’t it draining?
Twig_Scampi on
Looks like you are not tightening enough when you install and not using grease.
ocspmoz on
On the plus side, pretty thrilling fight for Drivers’ Championship though, right?
shushdaisy on
Also 2 different spindle lengths?
Feisty_Park1424 on
UN300 are junk, probably the worst bottom bracket that Shimano have ever sold. Tange, Token, Genetic and half a dozen other companies sell more durable bottom brackets than un300 – these are all worse than Shimano’s previous UNxx series
Illustrious-Ape on
Are you pressure washing your bike?
FarAwaySailor on
I’m seeing advice about grease on here, I have to say: you can put grease on the cartridge side if you want, but don’t put it on the cap side – the blue stuff is threadlock and it won’t do its job if you cover it in grease!
Bufordtannan on
Probably no tightening non drive side down enough. Those Shimano ones with the lock tight on non drive side are so hard to get in tight. I would get a sunrace one and grease it up and make sure it’s in there snug and tight.
15 Comments
Getting wet ?
Never seen this happen. Working with bikes for couple of years. Have you tightened the left side correctly?
poor installation
Knock off parts?
Needs way more grease on that thing. Like I’ve seen them slather in copper anti seize, and that seems to work well.
Put it full of grease, mine gets nasty after 6 months due water damage as well.
Judging by the level of rust, you might be leaving your bike outside or riding in a wet, slushy environment with salted roads?
Also, saw your other post about the chainring rubbing. Are you sure you did not get a new bottom bracket with a shorter spindle length?
I have had good luck with SunLite and FSA bottom brackets. Tange/IRD is the upgrade choice if you want to spend a bit more.
Why is so much water getting in and why isn’t it draining?
Looks like you are not tightening enough when you install and not using grease.
On the plus side, pretty thrilling fight for Drivers’ Championship though, right?
Also 2 different spindle lengths?
UN300 are junk, probably the worst bottom bracket that Shimano have ever sold. Tange, Token, Genetic and half a dozen other companies sell more durable bottom brackets than un300 – these are all worse than Shimano’s previous UNxx series
Are you pressure washing your bike?
I’m seeing advice about grease on here, I have to say: you can put grease on the cartridge side if you want, but don’t put it on the cap side – the blue stuff is threadlock and it won’t do its job if you cover it in grease!
Probably no tightening non drive side down enough. Those Shimano ones with the lock tight on non drive side are so hard to get in tight. I would get a sunrace one and grease it up and make sure it’s in there snug and tight.