Guess I have a worn bottome bracket.
#1
Thread Starter
Kitten Legion Master
Joined: May 2010
Posts: 900
Likes: 1
Bikes: Fuji silhouette, Dawes SST-aL
Guess I have a worn bottome bracket.
My SST AL is starting to creek when I put X amount of pressure on the pedals and I was told it is the bottom bracket.
So I must ask, what should I look for in a bottom bracket, brands, materiel and where is the best place to get one?
I am more interested in durability (one that will last a long time) over performance. But a good balance is best.
Thanks
So I must ask, what should I look for in a bottom bracket, brands, materiel and where is the best place to get one?
I am more interested in durability (one that will last a long time) over performance. But a good balance is best.
Thanks
#4
Thread Starter
Kitten Legion Master
Joined: May 2010
Posts: 900
Likes: 1
Bikes: Fuji silhouette, Dawes SST-aL
It's just creaking, I will double check tomorrow though.
#7
#8
Just looked at the BD specs. What is a "semi sealed BB"?
Wouldn't surprise me if the current one is not correctly assembled.
I would go with one of the Shimano sealed BB, UN26 or UN54, cheap and reliable, if you need to replace.
Wouldn't surprise me if the current one is not correctly assembled.
I would go with one of the Shimano sealed BB, UN26 or UN54, cheap and reliable, if you need to replace.
#9
Veteran Racer


Joined: Jul 2009
Posts: 11,855
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From: Ciudad de Vacas, Tejas
Bikes: 34 frames + 80 wheels
bd specs are notoriously inaccurate, inconsistent or downright wrong. What it says is "sealed ball bearing" and "semi cartridge bearing" huh? Look at the photo, and it looks to me like yer standard non-adjustable cartridge bearing design, found on all of their bikes. Basically, the only thing that needs to be done is to make sure the cups are tight. To do this you need to pull the cranks arms with a crank puller tool and then tighten the cups with a splined cup tool. If you don't have these tools, then you either buy them or take it to your lbs.
The problem could also be caused by loose chainring bolts or even loose crank arms. Crank arms need to be tightened to about 33 ft-lbs, which can't be done with a simple hex wrench, unless you have monster hands. I use a calibrated torque wrench to do this.
The problem could also be caused by loose chainring bolts or even loose crank arms. Crank arms need to be tightened to about 33 ft-lbs, which can't be done with a simple hex wrench, unless you have monster hands. I use a calibrated torque wrench to do this.
#10
Senior Member
Joined: Jan 2006
Posts: 2,671
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From: East coast
Bikes: Specialized Tarmac Expert, Cannondale R700, Specialized Langster, Iron Horse Hollowpoint Team, Schwinn Homegrown
If you are going to spend the time pulling the cranks and tightening the cups you should just pull out the cups, clean the threads, regrease and re torque everything. You don't know how many times I have did this twice before I learned. If a customer comes in complaining of a BB/Crank creak I do this everytime so they don't come back a week later with the same problem.
#11
Senior Member
Joined: May 2007
Posts: 1,959
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From: Flagler Palm Coast, FL
Bikes: 1986 Fuji Allegro 12 Spd; 2015 Bianchi Kuma 27.2 24 Spd; 1997 Fuji MX-200 21 Spd; 2010 Vilano SS/FG 46/16
https://classicwww.summitracing.com/s...ts_fordtrq.htm
Every bolt can be torqued to a recommended value or range, some require a longer handle lever to get to that value, the torque wrench allows a mechanic to accurately tighten a bolt. Otherwise, you're just guessing, like tire pressure without an air pressure gauge.
#12
My name is Alex
Joined: Jul 2010
Posts: 1,669
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From: PDX
Bikes: Mercier Kilo TT Stripper in RAW, Schwinn Madison 2008 Blue, Leader 725tr, Brassknuckle, Leader 722, Traitor Ruben
When I got my BB replaced (Kilo TT from bikesdirect) they told me the threads were cross threaded. Luckilly I got to trade services for services with my LBS to fix bikesdirect errors.
#13
Senior Member
Joined: Jan 2006
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From: East coast
Bikes: Specialized Tarmac Expert, Cannondale R700, Specialized Langster, Iron Horse Hollowpoint Team, Schwinn Homegrown
#14
I recently bought a BD bike and the non drive side BB cup was not even installed nor included. You probably would have noticed this instantly like i did because it sounded like it was about to break every pedal rotation. I sent them an email and they quickly responded wanting to help. As inconsistent as the bikes are from them the customer service seems to be great. If the bike has a defect don't hesitate to talk with them.
#15
Veteran Racer


Joined: Jul 2009
Posts: 11,855
Likes: 913
From: Ciudad de Vacas, Tejas
Bikes: 34 frames + 80 wheels
I recently bought a BD bike and the non drive side BB cup was not even installed nor included. You probably would have noticed this instantly like i did because it sounded like it was about to break every pedal rotation. I sent them an email and they quickly responded wanting to help. As inconsistent as the bikes are from them the customer service seems to be great. If the bike has a defect don't hesitate to talk with them.
#17
Senior Member
Joined: Aug 2010
Posts: 119
Likes: 0
i have an SST AL as well, just a couple months old, and it does the same thing. Ive taken off the crankset, greased it, torqued it tight, and still have the same problem... just a ****ty BB to be honest.
And i have 2 BD bikes, had a small missing dropout screw on the SST that they fixed for me right away. On my mtb, BD even sent me a replacement fork with very little questions asked.
And i have 2 BD bikes, had a small missing dropout screw on the SST that they fixed for me right away. On my mtb, BD even sent me a replacement fork with very little questions asked.





