Once you replace these low end units with a high quality Wheels Mfg Bottom Bracket , you can easily maintain them. The two biggest wear factors are miles and contamination.
In my experience contamination is the most important. Ride a lot of miles and that will do it in as well. In our lab at Wheels Mfg, I tested bottom brackets for mileage wear. Keep in mind we are in a lab without any environmental concerns like dust or moisture. Just miles. This is what our research found. Ceramic bearings lifespan varies greatly and is very dependent on conditions.
I do not recommend Ceramic bearings be used day to day or for high mileage applications. If you own ceramics do plan on maintenance every miles. Ray If you are speaking of the bb you mean the bearings or the shell? Add a comment. Active Oldest Votes. Pull your cranks laterally. Do they move? Give your cranks a good spin, preferably without the chain. Hear any unusual grinding noise or little clicks? If you answered no to both questions, keep pedalling.
You're still fine. Improve this answer. To add to the recommendation of spinning the cranks I would add the following: take the chain off of the chain rings, when giving it a spin, as the chain will interfere with your ability to assess by ear. That's about all I've got. It is an older style shimano square taper BB.
No point to subjecting it to winters wrath again, if you live in an area such as I do. Goodbye Stack Exchange Rick Ant Rick Ant 4 4 gold badges 13 13 silver badges 16 16 bronze badges. I have one suggestion to add to this thread However, once you start hearing some noise when pedaling or if the crank is wobbling, you may need to replace the bottom bracket. Just like other parts of the bike, bottom brackets also wear out due to various factors such as weather and riding condition. In case you realize that your BB is making some noise or you are not able to pedal comfortably, you may need to remove the bottom bracket and then apply some grease.
Road bikes normally use threaded bottom brackets which has a measurement of 68 mm wide. However, if you have a cross country or trail mountain bike , you should go for a BB with a measurement of 73mm. How do I know when to replace my bottom bracket? How to replace a bottom bracket — Post by Cyclist. How to Service a Bottom Bracket.
Last Updated on November 24, Topics we've covered 1 Greasing. Greasing Greasing the bottom bracket bearings is one of the most important things you should do to boost the durability of your BB. Anyway Red, it is fine to use if you want. It tells me it is an entry level Fixie. The cartridge style Bottom brackets are night and day smoother and less hassle to upkeep thats all. The shop had your best interest in mind and possibly trying to make a sale. When you feel like upgrading and want it smooth as possible try it out.
DaveM Hall of Famer. Joined: Aug Fixies put a small amount more stress on a BB than a typical geared road bike, though not more than any off-road bike. The type of BB you have is fine, but it is more important that it be adjusted correctly or it will wear out faster. The fact that a new bike came with type probably means it is a pretty low end BB and it may not last that long anyway.
But there's no reason to change it now. Adjust it and ride it. If it wears out, replace it. The BB is exactly what one would have seen back in that time - yes lower end, but useable. If when properly tightened it still comes loose then replace it.
My only argument was with the shop's dismissal of anything but a modern BB. I with you on the trifocals, things are not what they used to be anymore thats for sure.
0コメント