My square tapered bottom bracket (stbb) is 68/122.5. I have an old 1999 Specialized Hardrock that uses a VERY primitive looking stbb (like ball bearings, and couple of rings) that looks nothing like on the picture. Would it still work? Thank you for...
62011
if you have the old style or AMERICAN style, that is NOT threaded inside the frame, punch out the races and use the TRUVATIV BB conversion! YOU WILL BE VERY HAPPY YOU DID! There are a TON of videos on how to do this, check out bikeman (I think that is his youtube handle) and you wont be let down! JUST MAKE SURE YOU INSTALL THE DRIVE SIDE PROPERLY AND LINE UP THE CONVERSION BEFORE YOU SEAT IT INTO THE FRAME! The screws to the conversion will pull it TIGHT but make sure it is in far enough to not strip the screws or adapter! THIS BB is one of the best values in the industry! I dont recommend any UNDER this model, even though they are VERY RELIABLE. THIS is a small price to pay and while you are there, I recommend an upgrade to your crank set to bring you an upgrade that will breath life into that nice HARDROCK! IF YOUR FRAME IS ALREADY THREADED, no worries, this should work!
509301
there should be a label on the bottombraccet itself with all the specs on it. if you cant find the info on the specialized web site the simplest is to remove the bottom bracket and take the info from there.
1278876
I'd be very surprised if your base bar is 22mm. Most bikes are 25.4 and larger. The bars would only work on your bar if you could find a shim at your local bike shop that's thick enough.
571232
My set up: sram red compact crank and sram 1050 12-32 cassette...works fine, no issues, has been on my bike for over a year...though I did not determine the correct chain length, I had my LBS do it. : )
2278239
I thought it was a weird question until I looked up "Bb68 73" and found this...Shimano XT SM-BB70 Hollowtech II Bottom BracketLooking at the pictures on the left...Now that's weird.
716772
Sorry, I can't find a record of my Bottom Bracket order but would recommend checking out this page for advice. http://sheldonbrown.com/bbsize.html
1182292
The diameter won't likely be your problem. The length was the issue for me. It was a little too long, and wouldn't lock. However, I was able to grind part of the bolt off and get it to work. You might want to measure the space between your forks to get a better idea it it will work for your bike.
1417601
It is for a square taper bottom bracket. Do note that the crank arms are a little shorter than standard adult 170mm to 175mm arms.
1920283
sorry forgot to add. don't throw away your original BB. keep it some place. that way you have the all the measurements when you need to change it again. i would not be able to remember the sizes i need for my bike.i went already through a few of these BB.(never pressure wash your bike that is the beginning of the end of all the bearings... it washes out all the grease)
603805
There are a few things to consider.... first bb width on the frame, then the thread type which is critical cause if you mess that up your frame is as good as done. You should look up your frame online is the best advice i can give you there. And then lastly, you have to determine your chainline, this is going to be unique to your setup. Sheldon Brown has some great charts. Actually Sheldon's website prob has info for all these questions of yours, may he RIP. However these are things that you may want to check with at your local bike shop... shouldnt be more than 25 or 30 bucks for some knowledge and the correct part, here in TX at least. There are a few things to consider.... first bb width on the frame, then the thread type which is critical cause if you mess that up your frame is as good as done. You should look up your frame online is the best advice i can give you there. And then lastly, you have to determine your chainline, this is going to be unique to your setup. Sheldon Brown has some great charts. Actually Sheldon's website prob has info for all these questions of yours, may he RIP. However these are things that you may want to check with at your local bike shop... shouldnt be more than 25 or 30 bucks for some... » Read More There are a few things to consider.... first bb width on the frame, then the thread type which is critical cause if you mess that up your frame is as good as done. You should look up your frame online is the best advice i can give you there. And then lastly, you have to determine your chainline, this is going to be unique to your setup. Sheldon Brown has some great charts. Actually Sheldon's website prob has info for all these questions of yours, may he RIP. However these are things that you may want to check with at your local bike shop... shouldnt be more than 25 or 30 bucks for some knowledge and the correct part, here in TX at least. « Show Less
1417602
Yes. It takes the modern square tapered spindle. I used a Sunlite tapered spindle bottom bracket unit for mine.
937152
That's a pretty specific question. All I can say is that the crank sits fairly far out on the bottom bracket and I've ended up using short BBs like 118s or 123s.
850911
It has a lot of adjustment points. Three holes for the height on the bottom spars. At the top, the connecting arms are adjustable an the horizontal axis. It seem to me that it should work on most hard-tail MTB frames and wheel sizes (26, 27.5, 29)
1405580
9/16 is most likely referring to the size of the wrench needed to use this crank puller. I would recommend using an adjustable wrench with this crank puller. This crank puller should work if your bottom bracket is square taper.
1309073
It should work fine. I put mine on a Venzo Scud 29er MTB that I built up. The Venzo has a 31.8 clamp diameter.
813243
I actually just did a 1x10 conversion with 32 tooth up front and a 42 tooth in back. Still works flawlessly. Definitely start with a new chain though,narrow wide chain ring up front and One Up extended cog in back with the special mad 16 tooth cog that replaces your 15 and 17 tooth cog.
474493
If your documentation says to use Shimano tool TL-LR15, this should work fine. Note that there's some indication on the forums of quality issues some time ago (3 years I think) where the tolerances weren't very good. No guarantee that there isn't bad stock floating out there -- don't be shy about returning it if you get a bad one.