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Shimano LX Bottom Bracket

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# of Reviews 114
Average Rating 2.65/5
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Description: Shimano LX Bottom Bracket


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    Submitted by lauren a Cross Country Rider from long beach, ca
    Date Reviewed: August 23, 2007
    Duration Product Used:More than 3 years
    Strengths:still working after 12 years
    Weaknesses:none so far
    Bottom Line:lasts a really long time. came on a '95 cannondale. in '03 i moved it to a new hardtail frame. now moving it to a new fs frame. other than a bit of corrosion on the shell, still works great. maybe it's heavy compared to newer models, but i'm not a weight weenie.
    Value Rating:5Overall Rating:4

    Submitted by Marty a Weekend Warrior from Canada, NB
    Date Reviewed: November 8, 2004
    Duration Product Used:More than 3 years
    Price Paid: $25.00
    Purchased At:LBS
    Strengths:durable, affordable, worry free..
    Weaknesses:heavier then xt??? looks shiny.. too bad you hafta hide it
    Similar Products Used:ummm.. other cheaper heavier not as good BB's
    Bike Setup:this n that its an oldie but a goodie
    Bottom Line:after 3 years.. still going strong.. not many other components on my bike lasted this long.. im impressed with durability.. creaks after water crossings once in a while
    overall its a good product not a great one.. then again its a good price.. not a huge one!
    Value Rating:4Overall Rating:3

    Submitted by Connor a Weekend Warrior from Denver, CO USA
    Date Reviewed: October 22, 2004
    Favorite Trail:Porcupine Rim
    Duration Product Used:More than 3 years
    Purchased At:Came with bike
    Strengths:Reliability.
    Weaknesses:None. ?Weight.
    Similar Products Used:None.
    Bike Setup:Trek 970 cromo hardtail, Z2 Atom 80, front Avid mech disk, Rolf Urracco/Mavic 717 wheels.
    Bottom Line:This is for the stock UN-51/52 bottom bracket delivered with my bike in 1996. Not really relevant now with newer splined/ISIS cranks but instructive. Other than removing it every other year to inspect and regrease the housing threads, no maintenance at all despite daily use commuting to work in rain/snow/heat, road biking on slicks and mountain biking in Colorado and Moab innumerable times. I keep waiting to replace it after 5900 miles of use but it just keeps on smoothly trucking, like the LX 5-arm crank it's attached to. It may not be the lightest and is old square taper technology, but it is hard to imagine a better price-to-performance product out there.
    Value Rating:5Overall Rating:5

    Submitted by Eyal a Cross Country Rider from Israel
    Date Reviewed: June 9, 2003
    Duration Product Used:3 months
    Price Paid: $60.00
    Purchased At:at some www...
    Strengths:It looks like a crank !! (for a reasonable price)
    Weaknesses:But it not!
    Similar Products Used:Deor02 Bontrager01
    Bike Setup:S.C heckler, manitou Sherman fork, F$@imano B.B.
    Bottom Line:The middle chainring died after 300 miles on single tracks

    So flex, the drive train would have to "choos" what chainring it wants when putting force on it.

    Shifting even on normal conditions is bad and noisy.
    No durabilty what so ever

    I do ride aggressive but not free ride!
    Value Rating:2Overall Rating:1

    Submitted by Rob a from exeter
    Date Reviewed: May 8, 2003
    Duration Product Used:2 Years
    Strengths:pretty strong (as far as i can tell)
    smooth bearings
    creak free
    cheap
    Weaknesses:heavy
    Similar Products Used:other cheaper shimano BB's
    Bike Setup:trials
    Bottom Line:dunno why every one has been saying how cr*p these are, i havent broken one yet and have hit it very hard and it has outlived lots of pairs of cranks.
    has survived lots of messed up gaps landing on the bashring. the sorta landings that bend bashrings and spiders, yet the bearings and axle still run smooth as ever.
    doesnt look pretty but you cant see it. heavyer than its hollow higher ranger counter parts but from other trials riders use of hollow BB's i'll stick with LX. untill i ride smoother that is!
    Value Rating:5Overall Rating:4

    Submitted by Baube a Weekend Warrior from Baie-Comeau
    Date Reviewed: July 24, 2002
    Duration Product Used:1 Year
    Purchased At: spinsport www.spinsport.qc.ca
    Strengths:though, easy to install
    Weaknesses:none
    Similar Products Used:stock bearing and shaft
    Bottom Line:i've made some five foot gap and nothing broke even my rims(stock rigida) and the bb is still performing like it was just came out of the shop.
    Value Rating:5Overall Rating:5

    Submitted by Eder Giovani Savio a Downhiller from Florianópolis - Brazil
    Date Reviewed: May 22, 2002
    Favorite Trail:Três Pedras - Nova Veneza/SC - Brazil
    Duration Product Used:3 months
    Strengths:Just the name Shimano LX, but name don't get my money.
    Weaknesses:Squeak, flabby. It is very weak. Deore LX is weak like Deore and Alivio. Three craps!
    Similar Products Used:Deore, Altus, Alivio.
    Bike Setup:Haro MX2 7" rear travel. Mozo Delta 5". Specialized Dh tires, Tektro Gemini disc-brakes, Big-Boy Sadle, XT, LX, STX.
    Bottom Line:I don't understand. My old hard-tail specialized has a bb Altus about six year and never had troble. In others full bikes I had Alivio, Deore and Deore LX. All broke after three months. I don't know if a buy XT or Altus... I'm thinking about another brand...
    Value Rating:1Overall Rating:1

    Submitted by Fluffy a Cross Country Rider from Belgium
    Date Reviewed: April 3, 2002
    Duration Product Used:More than 3 years
    Price Paid: $10.00
    Purchased At:LBS
    Strengths:Cheap
    Weaknesses:Weight
    Similar Products Used:XTR, On One, STX, Alivio
    Bottom Line:I've used this BB on my XC bike for about 3 years. Never had any problems with it. There was a little play in it recently, so I replaced it with a new one.
    To all the people that claim to have snapped 3 or more: stop buying them!! Get something stronger!!!
    If you're a DH racer: get XTR and expect it to break!
    If you're a freerider: get On One crancks + BB
    If you're a XC-racer: get XTR
    If you're a XC-rider: get an LX and replace it after a few years...
    Value Rating:5Overall Rating:5

    Submitted by Greg a Downhiller from Bay Area, CA
    Date Reviewed: February 9, 2002
    Favorite Trail:Northstar @ Tahoe
    Duration Product Used:Less than 1 month
    Price Paid: $20.00
    Purchased At:LBS
    Strengths:Cheap, easy to install.
    Weaknesses:BREAKS OFF ANYTHING. BROKE OFF A 4 FOOT DROP. WORTHLESS, USELESS PIECE OF CRAP. I COULD PROBABLY MAKE A BETTER BB MYSELF WITH 2 BEARINGS AND A PAPERCLIP FOR THE AXLE.
    Similar Products Used:XT BB, much better.
    Bike Setup:Giant ATX, RaceFace cranks, Stratos blah blah.....
    Bottom Line:Well, if you are an idiot and like breaking BB's then get this. I know that they are cheap, but if you keep breaking them, then htye get expensive after awhile. I've gone trhough 3 of them so far and fianlly got an XT BB and its much better. Save your money now and get an XT- It'll last longer and save you more in the long run.
    Value Rating:1Overall Rating:1

    Submitted by Gaz a Cross Country Rider from England
    Date Reviewed: February 3, 2002
    Duration Product Used:6 months
    Price Paid: $20.00
    Strengths:cheap
    Weaknesses:heavy, resin cup is kind of crappy
    Similar Products Used:cheesy stock bb that came with bike
    Bike Setup:Hardtail
    Bottom Line:This thing wieghs half the wieght of my ride. Too cheap I think, this bb has only lasted 1000 miles before it packed in. makes so much noise it scares the wildlife. I am getting the xt version in the hope of a bit more quality.
    Value Rating:3Overall Rating:2

    Submitted by Johnny C. a Weekend Warrior from Christchurch, New Zealand
    Date Reviewed: January 5, 2002
    Favorite Trail:Lava Flow
    Duration Product Used:6 months
    Price Paid: $23.00
    Purchased At:Penny Sport Cycles
    Strengths:Hard to say with a bb, but it works and hasnt broken after several 5 foot drops to flat concrete
    Weaknesses:none so far, although ive heard heaps of bad reviews for this bb, i havent had any trouble.
    Similar Products Used:stcok wheeler
    Bike Setup:Wheeler hardtail
    Bottom Line:this is a good bb and has lasted much longer than the stock one, which i broke three of takes hard drops, good buy very cheap
    Value Rating:5Overall Rating:4

    Submitted by kalyn no a Weekend Warrior from nanaimo
    Date Reviewed: November 14, 2001
    Favorite Trail:big hits
    Duration Product Used:3 months
    Price Paid: $34.00
    Purchased At:the realm
    Strengths:not many, if you want a bb that likes to snap off 8 ft drops or bigger, buy this bb!!!!. broke 4 of em!!! and 1 xt bb
    Weaknesses:everything, they bend off 5 fters and snap off 8 and cut your leg to heck!! if you want 8 stiches in you calf buy this bb!!
    Similar Products Used:shimano!! xt broke it off a 5 ftr no better!!
    Bike Setup:norco vps buzz (kooka cranks)
    Bottom Line:if you like to cut your legs open and sack yourself eevery time you do a drop then buy it cause its cheep as crap!

    Shimano needs to go suck themselfs!! and do everyone a favor and throw there bb away!!
    Value Rating:1Overall Rating:1

    Submitted by Philip Collins a from Southampton, England
    Date Reviewed: November 4, 2001
    Favorite Trail:Stoke Woods
    Duration Product Used:3 months
    Price Paid: $10.00
    Purchased At:Peter Hansfords
    Strengths:good design cheap price
    Weaknesses:Some prducta have dodgy bearings than never set as a result of this i have been through about 6 in two years.
    Bike Setup:Viper F14 frame, Deore/XT groupset
    Bottom Line:good cheap bb, but if you do jumps or anything that involves landing hard on them then buy a different one, i only had to go a few foot high out of a bombhole in my local jumps and much to my surprise the axel snapped, much to my local bike shops disbelief as he thought you caouldent snap them, so if you are a town rider looking for a smooth bb then this one will do but if you intend doing some big jumps with big hits the get a much stroger one maybe try hope, or raceface
    Value Rating:3Overall Rating:3

    Submitted by Derek a Cross Country Rider from Springfield, SC
    Date Reviewed: October 30, 2001
    Duration Product Used:1 Year
    Strengths:It goes around when you Pedal
    Weaknesses:Heavy
    Has a plastic holder
    Similar Products Used:XT
    Bike Setup:Trek 8000 with XT components
    Bottom Line:I pulled the BB to clean the bike and when I went to put it back in I was screwing in the support ring on left side and the thing came apart. I was using a torque wrench. I had no other problems with it.
    Value Rating:2Overall Rating:2

    Submitted by a monty a Weekend Warrior from yorkshire England
    Date Reviewed: August 3, 2001
    Favorite Trail:owt
    Duration Product Used:Less than 1 month
    Purchased At:scott F.O.C.
    Strengths:Costed me s0d all. replacement for the rubbish fitted on my scott timber under 1 year old warrenty
    Weaknesses:time taken to fit by shop
    Similar Products Used:sh1t fitted orriginally
    Bike Setup:scott timber custom
    Bottom Line:At £0.00 i cant complain
    Value Rating:5Overall Rating:4

    Submitted by Rob aka Wheezer a Cross Country Rider from Van.
    Date Reviewed: July 19, 2001
    Favorite Trail:Any N.S. Double/Single D.trail
    Duration Product Used:Less than 1 month
    Price Paid: $26.00
    Purchased At:a shop on n. shore
    Strengths:Absolutely nothing
    Weaknesses:squeeks, creeks,and is very week
    Similar Products Used:lots o crap out there
    Bike Setup:Brodie Devo w/JR T. ,Blackspire cranks,Hayes brakes,Sun Double Wides and Gozzi. tires
    Bottom Line:I had this bottom bracket for less than a month and already its creeking and bent.This is my second one "Silly Me" in 6 months.My last one snapped doing a teeny little 3ft drop.Yes I know its horrible.I haven't a clue what i'm going to try next I geuss I'll try raceface I suppose.Anyways bottom line is that this BB may be okay for "Urban Riders"but when it comes down to the shore....shop around trust me!
    Value Rating:1Overall Rating:1

    Submitted by Nick Fenton a Racer from Clinton Connecticut
    Date Reviewed: June 28, 2001
    Favorite Trail:Any one with rocks
    Duration Product Used:1 Year
    Purchased At:came with bike
    Strengths:good paper weight, if u take the broken spindle out of it it makes a nice pencil holder
    Weaknesses:it is weak, and noisy, and bad, and i dont like you (UN52 that is)
    Similar Products Used:Race Face, truvativ, XTR
    Bike Setup:Trek, K2, Specialized P3
    Bottom Line:Broke, dont buy, go with a spined system by shimano, or by ISIS, if you buy it careful not to breath on the box, it may break.

    If you want a nice hood ornament i guyess you could polish it up and use it for that.
    Value Rating:1Overall Rating:1

    Submitted by poida a Weekend Warrior from Melbourne, Australia
    Date Reviewed: June 9, 2001
    Favorite Trail:one with big obstacles
    Duration Product Used:1 Year
    Strengths:It is cheap and runs smooth
    Bike Setup:DMR Sidekick trials
    Bottom Line:I've had this bb for about 1 and a half years and had it in two bikes. It doesn't have any play and it still runs well. I'm surprised how long it's lasted, buy it if you want a reliable bb but it seems there are good ones and bad ones so take your chances if you're game
    Value Rating:4Overall Rating:4

    Submitted by tony a from kingston - ENGLAND
    Date Reviewed: May 14, 2001
    Duration Product Used:6 months
    Price Paid: $30.00
    Purchased At:mail order
    Strengths:reasonbly cheap
    readily available
    Weaknesses:it snapped

    i was not happy , in doing so it messed up the taper on my RS7 which i cannot replace under warrenty
    I know that i wont get a replacement which is annoying and this being my second shimano BB snapped I will now look at alternatives, those being raceface for trials and 3 piece for jumping
    Similar Products Used:UN72
    Bike Setup:Ms Ilse , sidekicks middleburns, azonic , roox DMR , Spesh and other stuff
    Bottom Line:if your a dedicated rider look at alternatives especialy if you ride hard
    Value Rating:3Overall Rating:2

    Submitted by Bobby Brawnson a Cross Country Rider from Burlington
    Date Reviewed: May 12, 2001
    Favorite Trail:Kelso
    Duration Product Used:2 Years
    Purchased At:Came with bike
    Strengths:Cheap
    Weaknesses:Poor reliability
    Similar Products Used:none
    Bike Setup:hardtail with a big fork and wheels
    Bottom Line:This is my third season with the same bottom bracket and i have had no problems with it at all. I ride hard, but i don't weight anything. My brother on the other hand, is on his third in two years. I think the quality of some is better than others. So take your chances if your cheap otherwise, go RACE FACE
    Value Rating:3Overall Rating:2

    Submitted by Bryan Lorencz a Weekend Warrior from Hinton
    Date Reviewed: April 26, 2001
    Duration Product Used:2 Years
    Strengths:Cheap to purchase
    Weaknesses:Weak
    Similar Products Used:None yet, but going to try Race Face
    Bike Setup:KONA Stinky Five
    Bottom Line:I have broke 3 of these pieces of s&*t (always seems to happen at the top of the trail). Granted, they have broke from pilot error, but what the hell, f$%&ing up is part of the learning curve. A BB should be able to take a mega beating without breaking, bending or creaking. Spend the extra money and try something other than the UN52.
    Value Rating:2Overall Rating:2

    Submitted by PAUL a Weekend Warrior from ENGLAND
    Date Reviewed: April 5, 2001
    Duration Product Used:2 Years
    Price Paid: $20.00
    Purchased At:BRILLIANT BICYCLES
    Bottom Line:TOTAL CRAP IVE BEEN THROUGH 4 NOW AND ALL THE TIME I ONLY GET AROUND 3 HOURS LIFE BEFORE THEY START TO CREAK AND GROAN AT ME, I RIDE TRIALS SO THE BOTTOM BRAKET DOES NOT LAST LONG ANYWAY BUT I WOULD EXSPECT THEM TO LAST A COUPLE OF MONTHS , I LIKE OPEN BOTTOM BRAKETS , AT LEAST YOU CAN FIX THEM
    UN52 RESEMBLES A CHEEP PEN THAT YOU TRUGH AWAY WHEN THE INK RUNS OUT , PLEASE TRY AND STAY CLEAR OR THEM
    Value Rating:1Overall Rating:1

    Submitted by joe a Downhiller from hull
    Date Reviewed: March 6, 2001
    Favorite Trail:spook wood
    Duration Product Used:6 months
    Price Paid: $20.00
    Purchased At:ken ellerker cycles
    Strengths:smooth, cheap, fairly strong
    Weaknesses:bends if abused, also creaks after bending
    Similar Products Used:none
    Bike Setup:saracen n-zyme, magura's full LX setup
    Bottom Line:this BB is ok for xc, but anything more i reckon it is to weak.
    Value Rating:4Overall Rating:3

    Submitted by Jeff a Cross Country Rider from T.O. Canada
    Date Reviewed: February 25, 2001
    Favorite Trail:Hardwood Hills
    Duration Product Used:2 Years
    Strengths:costs near 75¢
    Weaknesses:Cheap (hey, it's Shimano...)
    Heavy
    Flimsy
    Similar Products Used:Race Face
    Shimano
    Bike Setup:'99 Trek 8000, Race Face ISIS BB, Race Face Turbine LP, XTR
    Bottom Line:This product was unbelieveably cheap from day one! It's heavy, makes odd noises, and only lasts around a year IF you're lucky! HA! So now I have a Race Face BB that is ISIS drive. WAY better, GO RACE FACE!
    Value Rating:1Overall Rating:1

    Submitted by Adam a Downhiller from South Wales, UK
    Date Reviewed: December 7, 2000
    Duration Product Used:3 months
    Price Paid: $15.00
    Purchased At:Various Stores
    Strengths:Price
    Weaknesses:Weak, heavy, plastic,
    Similar Products Used:XT BB
    Bike Setup:Check.
    Bottom Line:I made the wrong decision of trading off quality for price. Never again. I snapped the first BB after a week, attempting a 5 foot drop. The second one bent after a DH race. Spend a bit more and get an XT, they seem far stronger for DH / freeriding.
    Value Rating:2Overall Rating:1

    Submitted by Petrol a Weekend Warrior from Richmond, VA
    Date Reviewed: August 25, 2000
    Favorite Trail:any dirt trail
    Duration Product Used:2 Years
    Price Paid: $16.00
    Purchased At:local bike shop LBS
    Strengths:cheap, reasonable quality
    Weaknesses:ounces/grams what ever you weight winnies are counting
    Similar Products Used:XT
    Bike Setup:hardtail
    Bottom Line:lasted over two years with 2-3 weekly rides of 1-3 hrs, i am over 200 lbs. just wore out, good enough.
    I spend the extra $5 and upgraded to an XT (UB-72 or what ever) no problems with that so far, none expected
    Value Rating:4Overall Rating:4

    Submitted by Matt a Cross Country Rider from Little Rhody
    Date Reviewed: August 25, 2000
    Favorite Trail:Arcadia- Mt Tom
    Duration Product Used:1 Year
    Price Paid: $20.00
    Purchased At:Jensonusa.com
    Strengths:Quiet
    Smooth
    I pretty much beat on it and it still works....
    Cheap as all hell.
    Weaknesses:Not going to bother with the weight "issue"
    Will get to below....
    Similar Products Used:Nothing worth mentioning!
    Bike Setup:GT Xizang Ti, Marzocchi 3.5, Magura Hydraulic, Thompson Elite, Bontrager, Middleburn rings, WI cranks, old-bombproof-heavy wheelset
    Bottom Line:Bought this as an inexpensive upgrade when I purchased my new cranks and forgot about them. Certainly not top of the line on a part which for some reason is only now getting attention it deserves as one of the most important parts of your rig.
    I really couldn't not complain about it's performance on the trail, as it IS quiet, and it does turn fine. Just switched my parts over to my "new" Xizang frame and made an interesting discovery: Half of the threads on the drive side stripped out in the threads of my old bike's BB. The metal that composes the theads (what is it, lead??) are GLUED to the cylinder housing the bearings, which promply fell off when I took the BB out. Now- the BB tube of my old bike is not a problem- just needs to be retapped, so I am not worried about that. And I am figuring that this is just another instance of Shimano using the consumers as guinea pigs and is fully aware of the problem and I can get a replacement part to GLUE back on.... Apparently, Shimano is aware of this, but will ONLY sell you the piece on the non-drive side, meaning that I am SOL.
    My LBS hooked me up with the part off of one of his BB that he had in stock, hoping that he can get one of those pieces off of his distributors, if not- maybe he just ate a BB. Yes, the BB is cheap, and yes, it is still working on another bike, but I think that the wise choice would have been for me to fork over the coin for a BB that will last a lifetime, at a price that I'll be paying off for a lifetime. That way- I won't have to worry about dodging bullets on a cheap part. For now, though- I am in this battle and want to see how far I can last before having to switch to something else.
    3 value chilis because it IS inexpensive, but you get what you pay for, and 3 overall chilis because it is made pretty cheaply, but it is still working and quiet- until I decide to switch it to another bike.....
    Value Rating:3Overall Rating:3

    Submitted by Shawn Austin a Weekend Warrior from Milford, MA
    Date Reviewed: August 15, 2000
    Favorite Trail:Vietnam
    Duration Product Used: