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.
42173
Measure your bottom bracket to be sure, but this is the most common size I've run into while replacing bottom brackets on bikes I fix. Provided your crank is a square taper and not an octalink or something like that.
1165579
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 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,... » Read More 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 « Show Less
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.
511915
I just realized which trucks you were buying. Any standard 70 mm wheel and bearing kit is great. Get a riser and bolt length depending on how you are mounting them and how thick the riser is. I would recommend a full kit that includes everythung. Bearings are standard sizes. Sorry I didn't read through before answering.
1417600
I can't say what a "standard square" is...but I bought this to put on my Mongoose Beast and it fit just fine....I'm guessing that Mongoose (Pacific Cycle) uses standardized square taper size.
1054162
Can't find the specs but it almost certainly will work. Almost all older mtb cranks are the same bolt circle diameter.
379885
A 113mm bottom bracket will potentially give you chain alignment issues. The suggested 110mm BB's are readily available and its suggested by the manufacturer to use that length.Thanks
860517
I am not familiar with that bottom bracket. My fist question is : is that a square taper style bottom bracket? That's what you need at the most basic level . there are other factors that come into play : straight road bike style chInstays or MTB style chainstays .can you replace the spindle on that bottom bracket if nessary? That might be the only way to decide the correct spindle for your bike and the sugino crankset. Or... Quick answer : take the whole thing to your local bike shop to see what they might say. I hope this helps. Perhaps there are some other amazon customers out there with experience with this bottom bracket? I am not familiar with that bottom bracket. My fist question is : is that a square taper style bottom bracket? That's what you need at the most basic level . there are other factors that come into play : straight road bike style chInstays or MTB style chainstays .can you replace the spindle on that bottom bracket if nessary? That might be the only way to decide the correct spindle for your bike and the sugino crankset. Or... Quick answer : take the whole thing to your local bike shop to see what they might say. I hope this helps. Perhaps there are some other amazon customers out there with... » Read More I am not familiar with that bottom bracket. My fist question is : is that a square taper style bottom bracket? That's what you need at the most basic level . there are other factors that come into play : straight road bike style chInstays or MTB style chainstays .can you replace the spindle on that bottom bracket if nessary? That might be the only way to decide the correct spindle for your bike and the sugino crankset. Or... Quick answer : take the whole thing to your local bike shop to see what they might say. I hope this helps. Perhaps there are some other amazon customers out there with experience with this bottom bracket? « Show Less
716773
I used this one: Shimano UN55 BB Square Taper Bottom Bracket (68x110mm)it is a 110mm length BB.
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
1335466
they sent me a 27.2 when I ordered a 26.8... they had told me it was indeed a 26.8 when I asked them BEFORE I purchased... they refunded my money... ask them before you buy it! I wanted one for my old diamondback ascent mtb.... i'll just keep riding the nice aluminum one I found elsewhere for now, besides, the weight is almost the same within a few grams....
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!
211090
Because the back corners are not square, that is, there is slight depth difference on the left and ride sides, a 12 square does not fit. It will fit if the slight difference does not bother you. The two back corners will be slightly bent but not that bad. It is a very close call.
1386916
"bottom bracket must measure 123mm from one end of the spindle to the other end " AND the bottom bracket must have the correct offset, measure from the center of the bottom bracket to the end of spindle. Many bottom brackets are symetrical (same length on each side), some frames are not, resulting in one crank leg sticking out a little further on one side. Often this is not a problem.
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
1530209
This fork in here is a 1 1/8 non tapered. it works but you need to look for the tapered version.