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Submitted by
Zachariah
a Cross Country Rider
from Palm Desert, California USADate Reviewed: September 16, 2009
Strengths: -Far lighter than square taper, Octalink and ISIS bottom brackets
-Ease of installation(w/ BB tool)
-Spin smoothly
-Super stiff = direct power transfer
Weaknesses: -Wash your bike frequently, and you will soon encounter crunchy bearing sounds when turning the cranks...NOT GOOD!
-Weak bearing seals
-Prohibitively expensive to rebuildBottom Line: KEEP THIS BB AWAY FROM ANY MOISTURE!!!
Learn to properly wipe-down your bike(PITA- takes nearly forever) because the bearings will FAIL if you even use mild water pressure. This BB should have a rust warning!
Favorite Trail: Hurkey Creek Park(24 Hours Adrenalin Course)
Duration Product Used: 2 Years
Price Paid:
$35.00
Purchased At: LBS
Similar Products Used: TruVativ MegaExo - the BEST
Race Face X-type - the second WORST
Bike Setup: 2005 Cannondale F2000SL Hardtail - 19lbs of XC rocketry
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Submitted by
Ericmopar
a Weekend Warrior
from Henderson NVDate Reviewed: May 23, 2009
Strengths: For me, they seem to last forever.
I can't understand the reviews below.
I know from talking to others, that they too have had very good luck with these bearings.Weaknesses: None that I know of.Bottom Line: Most people I've talked to are like me, they have had very good luck with these. They have outlasted my old UN types, by a far stretch of time.
Don't even get me started on ISIS and 90 day lifespans, at $80 a pop.
I've gotten more than 2 years and over 4000 miles each, out of two sets, riding in the desert. More than 8000 miles total in 5 years, with a 04, LX Hollowtech II crankset.
I replaced one set while they were still turning smooth.
The other set got replaced recently, only because I got new BB bearings with a new SLX crankset.
The local mechanics have told me, that the problem seems to be people pressure washing after rides.
That and over tightening the tension knob on the non drive side.
It is also a problem for people with unsquare BB shells.
IE, BB shells that aren't faced properly.
Favorite Trail: Bootleg
Duration Product Used: More than 3 years
Price Paid:
$40.00
Purchased At: LBS
Similar Products Used: Old UN-52, 72.
ISIS (true crap).
Bike Setup: All mountain.
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Submitted by
jtlmd
a Racer
from OhioDate Reviewed: April 10, 2009
Strengths: It spins when newWeaknesses: DurabilityBottom Line: Been through 3 sets of these BB cups in the past 3 1/2 years. After a muddy ride they often seize and stop spinning. I've learned how to overhaul them myself, despite shimano saying they are not serviceable. I've learned to keep a spare set in my toolbox! Shimano needs to fix this system. (I've had a set replaced under warranty as it lasted only a few months, and another set has been sent back for warranty replacement).
Don't buy these BB cups unless your bike never gets muddy.
Duration Product Used: More than 3 years
Similar Products Used: Remember how durable the sealed cartridge BB's were! I have one of those over 10 years old and still working fine.
Bike Setup: Blur XC, XT crankset
Overall Rating: Value Rating:
Submitted by
Brazilianbreeze
a Weekend Warrior
from henderson, NV, USADate Reviewed: March 8, 2009
Strengths: Smooth at firstWeaknesses: durability, becomes crunchy when climbingBottom Line: This BB was crunchy and felt like it had a bucket of sand in it within the first 2 months of owning it. I had my LBS inspect it, clean and lube it and they said it was fine. I took it out the next day and it was still crunchy. I wouldn't recommend this to anyone.
Favorite Trail: Skyline
Duration Product Used: 6 months
Purchased At: came with bike
Bike Setup: 07 Scott Ransom 10
Overall Rating: Value Rating:
Submitted by
millerkwm1
a Cross Country Rider
from reisterstown,mdDate Reviewed: January 25, 2009
Strengths: shop had it in stockWeaknesses: not made to last. don't buy it if you want quality. shimano is laughing all the way to the bankBottom Line: garbage
Favorite Trail: rocky
Duration Product Used: 1 Year
Price Paid:
$40.00
Purchased At: local shop
Similar Products Used: oe that came with xt cranks
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Reviews 1 - 5 (5 Reviews Total)
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