Description:Truvativ BB's. Featuring the ISIS Drive System, Our spline BB's are 25% stiffer with twice the strength* which means you'll spend more of your time on your
bike... not in the shop.
CNC machined AL
Sealed cartridge
Hard chromed spindle
*as compared to a equivalent square hole crank and bottom bracket.
Submitted by
Chino
a Cross Country Rider
from Murrietta, Ca Date Reviewed: December 12, 2005
Favorite Trail:
Vail Lake, Temecula
Duration Product Used:
2 Years
Purchased At:
Came with bike, Pricepoint
Strengths:
Set it and forget it!
Weaknesses:
A little heavy
Similar Products Used:
Race face SRX ISIS drive, FSA ISIS Drive
Bike Setup:
KHS FXT Pro, 50% upgraded. Came with my Truvativ team Stylo crankset.
Bottom Line:
This BB is one of the few components that I have NOT changed on this bike! I've broken the rear derailleur, fork, front wheel, front rotor, pedals and upgraded many of the remaining ones. If you face the BB shell and torque it properly, (with a quality wrench and in small steps instead of maxing it out in one go with a cheap torque wrench) it will last. I've ridden in the rain, through river crossings that were knee deep, in adobe mud, and dry, dusty conditions without performing any maintanance. These BB's (ALL ISIS drives)require finesse and attention to detail during the setup process. I have a similar setup on my 2004 roadbike (FSA carbon cranks and FSA BB) with zero maintenance also. Note- you don't absolutely need to torque it to the max spec, make sure it spins freely with no lateral play, but you do need to recheck it after the first ride or two. Afterall, you don't pump your tires to the max rating before you ride, do you?
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Submitted by
Mike L
a Cross Country Rider
from Canada Date Reviewed: November 2, 2004
Duration Product Used:
2 Years
Strengths:
Hmm, not all that light; compared to other high quality BB out there (such as the Platinum Pro Ti and Signature Ti). To be honest, I can't think of any strengths.
Weaknesses:
I thought this was a very nice BB when first got it. It seemed very good and promissing. After only 10km ride, the bearings were shot. If you turned the crank, it would stop after 2 - 3 turns. I took it out and turned it by hand and it wasn't smooth at all.
Bottom Line:
I had this BB with my Stylo Team, which has been doing very well. The stylo team is light and very strong, I love the crank. Which is why I don't know what happened to the BB... I guess I got a melon or something... I didn't expect a Truvativ BB to be that crappy.
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Submitted by
Dan R
a Racer
from NJ Date Reviewed: May 4, 2004
Favorite Trail:
Any with dirt
Duration Product Used:
2 Years
Purchased At:
came on bike
Strengths:
Its a bottom bracket that holds my cranks on. Is ok for weight. Lasted two years of nasty northeast rain and mud.
Weaknesses:
Hey it lasted two years, so that seems ok to me.
Similar Products Used:
Sh1tmano.
Bike Setup:
Santa Cruz Stupidlight at 23.5lbs.
Bottom Line:
I see a lot of reviews of ISIS brackets that are negative. Maybe I'm a lucky one. This lasted two years of nasty mud and muck and stream crossing that went over the bottom bracket. Two years for a $40 BB is fine by me. Heck Every year I have to buy a new chain, new cassette, new chainrings, cables and housing, so whats the big deal about a new BB. If you tool you bike yourself, it isn;t a problem.
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Submitted by
Greg
a Cross Country Rider
from ID Date Reviewed: April 12, 2004
Favorite Trail:
the next one
Duration Product Used:
1 Year
Price Paid:
$24.00
Purchased At:
QBP
Strengths:
The potential of the shared technology of ISIS
Weaknesses:
piece of Sh$&
Similar Products Used:
full spectrum of Shimano
Bike Setup:
one with a cool seat and two tires.......it even has brakes....
Bottom Line:
Had this BB for one year. Noticed that it was never smooth, even out of the box. Also, as someone mentioned below, the install/removal "teeth" are very easy to round or sheer off.... The BB is now deteriorating noticeably. You can feel resistance when pedaling. Have uninstalled/reinstalled, made no difference. Bottom line, this is a cheap BB.... Haven't inquired about warranty, but doubt it would help.
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Submitted by
John
a Cross Country Rider
from Bristol, CT Date Reviewed: April 10, 2004
Duration Product Used:
1 Year
Price Paid:
$35.00
Strengths:
Still going after a year of use.
Weaknesses:
None yet. (Fingers crossed)
Similar Products Used:
Several types of ISIS Race Face BB's. They generally wear or the bearings wear very quickly.
Bike Setup:
Giant NRS1
Bottom Line:
Still going OK after a whole year of riding. Lots of water crossings, and rough trail abuse. No creaking or slop. Well worth the $35 I paid.
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Submitted by
Mark Harman
a Racer
from Dublin,Ireland Date Reviewed: February 22, 2004
Favorite Trail:
Three rock
Duration Product Used:
3 months
Purchased At:
Cycle inn,dublin
Strengths:
Light,i guess
Weaknesses:
Shoddy I.S.I.S design gives too many problems-raceface and f.s.a. are having as many probs with this design
Similar Products Used:
Raceface,F,S.A
Bike Setup:
Which one?.Muddy fox D'hill bike,litespeed obed c/country bike,Volume bmx
Bottom Line:
The B/B Devoloped play and grinding noise within 2 months on my cross country machine.I work in a bike shop so went to replace it.The tighting mechanism sucks.You have to use an xtr tool to take it out.The tool snapped the teeth clean off and the b/b 'teeth' rounded of.I know your gonna think It was my fault but I've done hundreds ot these things(b/b's) and these ones suck ass
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Submitted by
Joe Case
a Cross Country Rider
from Pensacola, FL Date Reviewed: January 21, 2004
Came with the bike and is just about dead after 5 months of use. Guess it can last longer if you stick to fire roads and flat single track, but according to mech at the shop, just not designed to handle any kind of sustained bump or abuse. Started hearing slight grinding after a couple of months (about 300 miles), then just went downhill quick from there. Will give RF or FSA a shot next.
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Submitted by
Adam
a Cross Country Rider
from Pennsylvania Date Reviewed: September 22, 2003
Favorite Trail:
Anything in Rothrock
Duration Product Used:
1 Year
Strengths:
good until it I could hear the bearing rattling around while I rode.
Similar Products Used:
regular old shimano BB's
Bike Setup:
Stylo team crankset.
Bottom Line:
Well, this was a great setup until recently when the BB started giving out. I got the tool, overhauled and adjusted it. After 1 ride it has slop again, but hopefully 1 final tightening will take care of this. My friend has the race face isis FR and he is having problems with that as well. I guess until chris king comes out with their BB we will just have to deal with constant overhaul/adjustment/replacement.
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Submitted by
King Bernas
a
from Quezon City, MM, Philippines Date Reviewed: August 26, 2003
Duration Product Used:
1 Year
Price Paid:
$20.00
Strengths:
None beyond the fact that they fit ISIS drive cranksets, which by the way aren't any better then shimano octalinks.
Weaknesses:
"Sealed" bearings.
I went through two of these BB's in the past year. the first one developed play after around 6 mos but it was used in a bunch of adventure races, a 24 hour race & a lot of wet muddy rides so i guess that was understandable. the next one didn't last much longer though, despite the fact that i was more diligent with having my bike serviced around once a month during our rainy season (muddy, wet rides, river crossings, etc.) yet it still broke! worse it happend during the first day and 35 km into a three day 120 km bikeout in the Cordilera! it developed play, started squeaking before finally, literally grinding to a halt! i had to bail and take a long bus ride home while the rest of my friends rode on.
While this BB has been on some set, muddy rides, it hasn't gone through anything that i haven't done on my old square taper Shimano UN-52, which by the way still works fine! i bought the ISIS FSA cranks & Truvativ BB because i was upgrading & wanted to try something other then Shimano. what a disappointment! the FSA's are great but if the Truvativ SL is indicative of the quality of ISIS bbs, forget it! they're expensive too! they're priced at the same level as Shimano XTR bb's, and a lot more then the XT/LX model!
i replaced the Truvativ w/ an FSA Ultimax Pro (only one i could get at the local shops since apparantly ISIS BB's are really hard to find here in the Philippines) that was at least the same price as the Truvativ SL (but still more then Shimano's. but i've learned my lesson though. as soon as i can afford it i'll be replacing the whole crankset/bb with Shimano
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Submitted by
Chris H
a Cross Country Rider
from Doylestown, PA Date Reviewed: April 22, 2003
Duration Product Used:
1 Year
Price Paid:
$44.00
Purchased At:
mail order
Strengths:
ISIS spline design, stiff spindle
Weaknesses:
Not cartridge bearings. Drive-side ring fractured (see reviews by Simon and Ade) leaving bottom bracket stuck in BB shell, chewed up mounting face of BB shell.
Bike Setup:
Rocky Mountain Element Race
Bottom Line:
I was perfectly happy with this bottom bracket, running with Truvativ Stylo Team cranks, until I began having troubles shifting on the front. Thought it was a problem with the front derailer. (it's only an LX) No problem, I can ride on the middle ring, ignored it. A little while later I discovered that it was getting difficult to spin. Turns out the crank had shifted all the way to the left until the rings were rubbing against the frame. The flange which has the wrench spots for tightening the BB had sheared off, allowing the BB to thread itself farther into the BB shell until the cranks hit the frame. This also managed to tear up the mounting face of the BB shell on the frame.
I managed to get the non-drive side cup out easily, but without the wrench spots on the flange, I was not able to pull out the bottom bracket. Using a combination of tools to jam the spindle, (as that is the only thing sticking out of the frame that I can use to turn the bottom bracket) I am working on getting the bottom bracket out so I can replace it.
In the meantime, I'll be staying away from the Truvativ BBs (even though I still love the cranks) and using Race Face.
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Submitted by
Carlos
a Weekend Warrior
from Florida Date Reviewed: March 20, 2003
Favorite Trail:
Razorback at Reddick
Duration Product Used:
Less than 1 month
Purchased At:
0
Weaknesses:
Does not last long. Bearing grinding occurred after one year of racing.
Bike Setup:
Trek Fuel 100, Rock Shox SID, Float rear shock
Bottom Line:
This thing broke after one year of use, and it is not one of the cheaper bottom brackets. There is no way to check inside without a special tool. This might be good for people that don't put too much pressure on the bracket, but then again this is mountain biking.
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Submitted by
Seeker
a Cross Country Rider
from SC Date Reviewed: January 27, 2003
Duration Product Used:
2 Years
Purchased At:
40
Strengths:
Still working, which is more than I can say for the other ISIS BBs I have tried.
Weaknesses:
None so far. Not the prettiest BB in the world, looks kinda cheap.
Similar Products Used:
Race Face FSA Shimano
Bottom Line:
This BB has performed well for over 3000 miles of combined road and offroad riding with no problems. It is the least expensive of the 3 isis BBs I have purchased, and so far the best.
My first isis BB was a RF which was retired in under 500 miles due to bearing failure.
I will post a review of my FSA isis BB when I get some more miles on it.
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Submitted by
Russell Hanna
a Racer
from Columbus,TX,USA Date Reviewed: January 2, 2003
Favorite Trail:
Rocky Hill
Duration Product Used:
1 Year
Price Paid:
$40.00
Purchased At:
LBS
Strengths:
Splined engagement very positive fit. Easily installed in frame.
Weaknesses:
Insufficient bearing surfaces, and poor sealing from elements. Very difficult to repack with grease.
Similar Products Used:
Shimano xt
Bike Setup:
GT 2001 1.0 I-drive.
Bottom Line:
Went with Truvativ crank and bb. after hearing all the raves when they first came out. Should have waited until everyone else tested them. Back to the big S. tried and true.
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Submitted by
Jeff Elsner
a Cross Country Rider
from Fort Collins, CO, USA Date Reviewed: November 6, 2002
Duration Product Used:
3 months
Price Paid:
$25.00
Purchased At:
pricepoint
Strengths:
fits both 68 and 73mm shells for what thats worth
Weaknesses:
They WEAR OUT, ussually in less than 250 miles. My old lx bb is still working after nearly 4000 miles. Also any bottom braket that uses the Isis (oversized) crank bolts is worthless. I have now lost 3 crank bolts durring a ride, it lossened up and fell out, lockwasher and all. I even tried locktighting them in there and they fell out! And yes they were installed to the correct torque
Similar Products Used:
Shimano. For bottom brackets I think they are still the way to go.
Bike Setup:
Giant xtc/Shwinn Rocket 88
Bottom Line:
Don't buy these they are not worth it.
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Submitted by
Tom Gramp
a Cross Country Rider
from southern nj Date Reviewed: November 4, 2002
Favorite Trail:
fairhills
Duration Product Used:
6 months
Purchased At:
online
Strengths:
I guess it worked for a while....
Weaknesses:
but I thought this part was supposed to be one of those install it and forget it parts.
Similar Products Used:
FSA,Shimano
Bike Setup:
Hardtail
Bottom Line:
This piece is supposed to be a install and forget it part. Can you really tell the difference from one to the other...lets be for real. They all spin and go in circles. Where I could tell the difference was a scraping sound that made you feel like sand was inside your bike somewhere. Yup, that,s what happened...cheap sh%t. I found the thing had all kinds of play. What gives TV? I read other reviews on this BB and found I am not alone. I guess TV wont be much help(poor customer service).....so I know never buy a BB from them again.
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Submitted by
Alan
a Racer
from Salt Lake City, Utah Date Reviewed: October 21, 2002
Duration Product Used:
6 months
Purchased At:
Came stock on my Kona Jake the Snake
Strengths:
None
Weaknesses:
Less than 100m iles on a bottom bracket and the bearings are shot, poor quality, poor customer service!
Similar Products Used:
Shimano un72, world class ti, Shimano Dura-Ace, Shimano Ultegra.
Bike Setup:
Kona Jake The Snake, Ultegra Derailleurs, 105 shifters, Mavic MA3 wheel set w/ a 105 rear Hub and Deore Front Hub Now with ULTEGRA Cranks AND BB.
Bottom Line:
If this crap comes on your bike ask your shop for a credit and replace it with something else! This is not the first problem I have had with truvativ. My BB on my Kona Stinky Deluxe had the outter retainer ring sheer off like some of the other people in the reviews I read. I sent the back to truvativ and they never even responded to it.
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Submitted by
Simon
a Weekend Warrior
from Austin Date Reviewed: September 28, 2002
Duration Product Used:
1 Year
Price Paid:
$40.00
Similar Products Used:
Shimano square, Truvative square BB's.
Bike Setup:
NRS-1 frame custom, XT, XTR, Firex cranks.
Bottom Line:
Unlike others I had no problem with crank arms loosening or bearing wear. However, like Ade below, my drive side ring sheared clean 4 months after installation (with 6 months of service on my prior frame). The bb case width of the NRS-1 requires the Truvativ-supplied spacer on the drive side. The metal bond is only a few mm and I attribute the failure to the lack of adquate surface area or reinforcement for the ring. It is possible that it was weakened during the original or 2nd installation, but in any event, this is something to be looked out for, and given that I am not the only one, perhaps not my fault at all. I note that I had 4 months of fine riding and was careful to check the bb to insure no play or sign of over tightening (note I never tightened the bb for for months then one afternoon poof the ring is off and jangling along with the spacer). I had very good luck with the Truvativ square bb and my Firex square and now spline cranks. But this is my first bb failure in 5 years and I am sure to switch to something else.
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Submitted by
John
a Cross Country Rider
from Bristol, CT USA Date Reviewed: September 8, 2002
Duration Product Used:
1 Year
Price Paid:
$45.00
Purchased At:
Speedgoat
Strengths:
It has lasted so far, over 1 and a half years.
Weaknesses:
Zero. Have had no problems with it.
Similar Products Used:
Shimano square taper (worked ok), Race Face Ti ISIS (lasted 6 months or so)
Bike Setup:
2000 Specialized Enduro, this is my beater bike.
Bottom Line:
I bought this bottom bracket early 2001 because I wanted ISIS crankset durability, and an overbuilt spindle. It was also able to adjust to an e-type front derailleur, because it has a removeable spacer for this purpose. I have never lubricated it, I don't see any grease ports. It has lasted this long , over 500 miles off road. I just remoed it from the bike and put it into my GIANT NRS1 because the Race Face Ti ISIS BB in that bike blew up(see my review). This BB has no play, and spins freely, smooth as can be. I am glad I kept the spacer ring in my toolbox, I needed to reinstall it for my GIANT to have the correct chainline. When my Race FAce gets back from warranty, if it fails again, I will buy another Truvative for sure.
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Submitted by
Magnus
a
from Motala Date Reviewed: September 6, 2002
Duration Product Used:
1 Year
Strengths:
Light?
Weaknesses:
Doesn't keep adjusted
Similar Products Used:
Shimano LX
Bike Setup:
XT-XTR-Mavix517-RS SID XC-Cyclepro M1
Bottom Line:
Yes, it's adjustable. Does that mean you have to adjust it every 100 km? Seems like it. Use a Stylo Team crankset with it, crankarms needs tightening about as often. I'm 82 kg, not too heavy, but this constant work is a pain in the ***! Any suggestions on what to replace it with? Gotta be ISIS-drive though...
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Submitted by
Ade
a
from Malaysia Date Reviewed: August 29, 2002
Duration Product Used:
1 Year
Strengths:
Cheaper then Race Face and XTR BBs. Good crank arm to BB interface(ISIS) - plenty stiff. The Team cranks are superb
Weaknesses:
BB drive side ring broke! and 2 different BBs!
Bike Setup:
Klein Attitude, Marzocchi Z2 Light and mix of XT and other parts
Bottom Line:
Has been replaced 2 times as the drive side ring broke off after ride. Don't know if anyone out there faces this problem but it started as a BB play and ended up with a broken drive side ring (2 times). Went to Race face ISIS Prodigy BB. Not bad except the bearings are now starting to give a play. That makes a total 3 BBs in a span of about 6 months. Abit sick of changing it! just saving to get something else with a install and forget robustness so I can spend more time riding and less in repairs.. Maybe it is just me.. might just go back to good ol' square taper BB. What's the use of stiffness if it can't hold up? Good idea though. Maybe a product at infancy that needs time to iron things out?
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Submitted by
Rick
a Weekend Warrior
from San Diego Date Reviewed: July 23, 2002
Favorite Trail:
Noble Canyon
Duration Product Used:
1 Year
Price Paid:
$40.00
Strengths:
Light weight, inexpensive.
Weaknesses:
Poor durability.
Similar Products Used:
Shimano, Raceface, Bontrager.
Bike Setup:
Titus Switchblade, Truvativ Cranks (ISIS).
Bottom Line:
After about 1 year (dry) it creaked and had excessive bearing drag. I've gotten 2 to 3 years out of Shimano and Raceface BBs. To be fair the Truvativ costs 1/2 the Raceface and weighs a lot less than the Shimano so it's a bit of a trade off. In my case I'll stay with the Truvativ cranks but go with a heavier Shimano or more costly Raceface BB.
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Submitted by
Geoff Goldsmith
a Cross Country Rider
from Australia Date Reviewed: July 2, 2002
Duration Product Used:
2 Years
Purchased At:
LBS
Strengths:
Fitted well onto the bike
Weaknesses:
Creaked far too much, poor quality bearings
Similar Products Used:
Shimano, FSA
Bike Setup:
Who cares?
Bottom Line:
I was initially happy with this bottom bracket until it began to creak like a mofo shortly into it's life. A bit of grease seemed to solve this problem but then I noticed that it started to feel notchy. This combined with a return of the creak. The BB finally expired when we broke it trying to disassemble it. Looking at the innards of the BB I could not help but be disappointed at the state of wear of the bearings which had only done about 2000k's of cross country riding. I would not buy another truvativ BB although I do like their cranks (I am using stylo teams).
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Submitted by
Greg
a Cross Country Rider
from South County Date Reviewed: May 8, 2002
Duration Product Used:
6 months
Price Paid:
$40.00
Purchased At:
LBS
Strengths:
Stiff BB, good weight.
Weaknesses:
Bad bearings. Excess creaking.
Bike Setup:
XTR, Truvativ Stylo Team cranks
Bottom Line:
After dealing with the excess creaking by using teflon tape, the bearings began to bind after less than 500 miles. The mechanics at my LBS agreed that the unit needed to be replaced and/or repaired. Unfortunately, customer service at Truvativ seems to be non-existent!! After many attempts to communicate my problem with them, a Truvativ service person finally contacted only to refer me to their warranty department. This went nowhere... I'm dumping the whole Truvativ BB and crankset and going to XTR or Raceface!!
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Submitted by
Brian
a Weekend Warrior
from Edmonton AB Date Reviewed: April 12, 2002
Duration Product Used:
Less than 1 month
Strengths:
Bearings are OK, I guess.
Weaknesses:
Splines not within tolerances.
Similar Products Used:
XT square taper, Bontrager ISIS
Bike Setup:
Giant AC1
Bottom Line:
This is a poorly produced product. The cranks (Hussefelts, another Truvativ product) slid all the way to the stops without tightening. The bolts held them on, but the non-drive side creaked and clunked after it developed a rotational play within a few days, and the drive side walked off after some drops. When I replaced the BB with a Bontrager, the cranks tightened on properly, and are so far holding on really well, no creaking anymore. Soooo, Truvativ cranks rock, their BB's suck.
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Submitted by
Mat Wintzer
a Cross Country Rider
from san luis obispo Date Reviewed: March 13, 2002
Favorite Trail:
If I told, everyone would ride it
Duration Product Used:
3 months
Price Paid:
$23.00
Purchased At:
factory direct
Strengths:
Relatively light. Uses the ISIS drive. Extremely affordable. Not Shimano. Maintenance free
Weaknesses:
Should come with some lock tite on it or some pipe threading tape.
Similar Products Used:
Shimano LX (that creeked on every stroke even without a load)
Bike Setup:
GT i-drive 3.0, Uno stem, Truvativ Stylo team BB and crank, IRC Notos tires, Avid mech. and speed dial 7 levers, XT front der., Selle Italia flight max seat, Total Air Judy upgrade, and a partridge in a pair tree
Bottom Line:
I have had no problems with the Truvativ BB. It works fine. It is stiffer, lighter, quieter, and cheaper than Shimano. It seems like most peoples problems stem from a lack of lock tite or threading tape. Most of these poor reviews would not exist if Truvative put lock tite or threading tape on their equipment.
If you are having problems with your BB or crank set coming loose, go to the hardware store and buy pipe threading tape for $0.65 and place it on the bottom part of the thread closest to the bolt. This will prevent it from coming loose and rusting shut.
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Submitted by
Dave
a Racer
from Columbus Date Reviewed: January 25, 2002
Duration Product Used:
6 months
Similar Products Used:
raceface XS ISIS
Bottom Line:
I bought a Truvativ crankset and wore out the chainrings, crank arms constantly came loose and the BB developed about an inch of slop in less than three months. Truvativ told me that i needed to tighten the BB and the tool i needed was not available yet, i would have to send the BB back to them to tighten. Question: Why would Truvativ make a BB that they knew would need serviced and not have the tool available? Truvativ was good about sending me another BB, i even got some cool stickers. However this one has lasted less than two months. Although i race and ride alot i only weigh 140lbs and a BB should last at least a season. My shimano LX BB lasted over 5000 miles!!
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Submitted by
rik
a Racer
from seattle, wa Date Reviewed: December 10, 2001
Duration Product Used:
1 Year
Strengths:
Very Stiff (ISIS compared to Shimano Octalink and especially the square taper) Affordable Durable
Similar Products Used:
XT
Bike Setup:
Ibis Mojo with XT and Sram mix
Bottom Line:
Like many, I got sick and tired of my XT cranks and BB creaking like a mouse under load. That and they're expensive. I was going to get XTR but that BB sucks too. Rather than waste a bunch of xtra$$ to stick with the big S I tried a Stylo Team crank and this BB...It rocks! Noticeable stiffer than my old XT splined setup. The cranks shift way better too...I've been running the same BB for a year and its still running strong. i see there are some posters who don't like them...and all i can say to that is my experience with this BB (and all Truvativ products I use) is stellar. Best of all--its much more affordable than Shimano and Race Face.
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Submitted by
Brian Shiverdecker
a Cross Country Rider
from Pismo Beach Date Reviewed: December 3, 2001
Favorite Trail:
What?
Duration Product Used:
1 Year
Price Paid:
$40.00
Strengths:
Super stiff, ISIS Drive compatible, Smooth, Rebuildable, great value.
I'm a fairly serious racer and I've been using my Truvativ bottom bracket for almost a year and it's still holding up great. I just wanted to give ISIS Drive and Truvativ a bunch of Chilis and let everyone know that it's working well. I'll probably get a 2002 version for next seaoson, I've heard rumors of some improvements.
R.I.P. George
Peace!
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Submitted by
Shawn
a Racer
from Atascadero Ca 93422 Date Reviewed: December 3, 2001
Duration Product Used:
6 months
Purchased At:
K man cyclery
Strengths:
Can you get any closer to profection? This thing is Bomb proof. The Bottom bracket will not lose its smoothness. Its like butter (Only Smoother). I definatly would say this is the best BB out on the market. The best thing to do is run Truvativ cranks along with it. Then you know your getting optimum usage out of you BB.
$
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