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 your patient. 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... » Read More 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 your patient. « Show Less
87862
I had a similar setup before switching over with no problems... BEST move I made was switching from the old to the UN55 Shimano BB...
87863
I put this one on a cheaper Huffy mountain bike with a solid straight shaft and a bearing set on either side! It was a great upgrade and worked perfect. Very simple to install and I think it should work on your bike with problem.
87864
Sounds like you currently have an 'adjustable BB' and upgrading to a cartridge BB is certainly a move in the right direction,chances are it will work, and if not, send it back.....no biggie....good luck.
59866
I replaced the original crankset that comes with this bike (which is actually pretty bad) with a shimano tourney crankset (Shimano FC-A070 Crankset 50/34 x 170mm 7 spd Tourney Black Road Bike). The only special tool that you will need is a crank puller for square taper cranks. You can find a lot of different models in amazon. Any of them can do this job pretty well. Finally, you may need other ordinary tools such as an adjustable spanner and a socket set. And just make sure that the socket walls are not so thick (such as those used for heavy duty jobs), so that you can insert the socket to remove the protection bolt from the crankset (you can see the bolt by removing the plastic cap that covers the crank).
1635481
That staggered bolt pattern is for flywheel/ flexplate with 168 teeth. The straight across bolt pattern is for the smaller 153 tooth. So depending on what size flywheel/flexplate you're using, will determine if this will work or not.
364856
Yeah just count the number of teeth and make sure it's a square taper bottom bracket (it most likely will be).
37132
No it's not tapered. Straight 1 1/8. Great fork for the price. If you want tapered you will need to move up to one of the Reba models. The Reba come in tapered and straight.
1184034
you need to measure the bottom bracket shell and the spindle on the old bottom bracket (it is most likely a 68mm x 115-120mm bottom bracket but measure to be sure) here is an image http://www.peterverdone.com/wiki/images/5/5f/Hollowtech-II-3.jpg and a handy chart http://sheldonbrown.com/bbsize.html
1732430
We bought the Shimano UN55 BB Square Taper Bottom Bracket 68X107mm to use with Origin8 Square Top Track/Single Speed Crankset - 170mm x 46T Square Taper White.
1405581
pulling cranks? maybe the bolt securing the cranks to the BB is 9/16 (though I've seen 15mm more often)?This should work to remove the cranks from most square taper bb's, once youve removed the securing bolts.
1165581
Sorry - I don't have this tire to check, but Continential only lists 27 x 1 1/4 with ISO 630x32. The general rule for bicycle tires IS fractional sizes and decimal sizes DON'T MIX. It's a valid question - although I'm not aware of that problem with 27" size, I have definitely experienced problems with old 26" sizes even within the same inch size designations. I suspect someone that was unaware of the mismatch issues just used the decimal designation by mistake. Best to check the ISO numbers of the old tire ( that did fit ) if possible - look at the larger number, that's rim diameter. In this case you want 630-xx (for a 27" tire). Good source for info on most things bicycle is sheldonbrown.com/tire-sizing.html
716774
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
937154
Hey Gordon, I bought this as a replacement crankset for my Trek FX and haven't gotten around to taking the bike apart yet. All I can tell you is that it is for a square taper BB. Check this website. http://www.rivbike.com/product-p/cr1.htm
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.
835441
I didn't measure it. It was for a 60's era Schwinn and it fit. I just took the sellers word for it and they were correct. If you look on the old bearing you should be able to find a number. All bearings, no matter who manufactured them, carry identical part numbers for identical bearings. I bought a couple of these. I think that rather than pound out the old cup, I just all the new stuff but the cup. Much easier that way. Ed
654517
I really think it depends on your chainstay clearance, chainring and crank arms. What I did to figure that out was to use websites like this one: http://sheldonbrown.com/chainline.html to figure out what length bottom bracket best worked for my bike. If you are running a triple, you should be at 45 (I'm assuming you are because you specifically asked about a chainline of 45), but a double should be 43.5mm...and on and on depending on your bike and gearing. You can also adjust the spacers on the back axle as well, but this shouldn't be necessary if you know that your rear (sprocket end) is at 45mm, which is what you are trying to achieve (explained here: http://www.velodromeshop.net/index.php?p=page&page_id=chainline). Sorry, not an easy yes or no answer. Just check those sites out and do the measurements and you should be ok. Hope I helped...good luck!
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.
448955
the specs on that area a 44 to 48 tooth outer ring, the main thing is also its a 9 speed, I had a seven speed rear sprocket, didn't work for me, so be sure and check your rear sprocket. Then look for a 3 x ?, whatever you have, then you should be ok.
244794
There are different bcd (bolt circle diameter) for different cranks. If yours is a four bolt pattern it is most likely a 74 bcd and this one would work. However, there are many five bolt patterns such as 110 for compact road and 130 for standard road. So find the bcd for your cranks and you will have your answer.