08 Bianchi Pista BB size?
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i just ordered a dura ace bb and set of dura ace cranks for my pista concept and the required axel length was in the crank specs
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I know this is noob question but, if I want to get new sugino rd messenger crankset do I need to get a new BB, this is for a 08 bianchi pista also.
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the truvativ cranks use a powerspline (i.e., not square tapered BB), so you need a new BB that works with whatever cranks you want to use.
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Yep, just realized that =(. Any suggestions on the best priced BB to match the 75's to ensure a proper chainline? I think the Pistas rear hub is 42mm but i'm not too sure. The 75's suggest using anything from a 109-110mm BB.
I was looking into order that as well, but I figure you'd have the same problem with the non square tapered BB. The matching RD BB is pretty cheap though, but the combo apparently gives a 45mm chainline which some people have apparently found problematic so I decided it would be best to go for the better cranks anyway. Hopefully somebody else more knowledgable can help out.
My cranks came pretty scratched up so I might just see about trying to buff out some of the scratches first, so I suppose that will end up being the first thing to go.
My cranks came pretty scratched up so I might just see about trying to buff out some of the scratches first, so I suppose that will end up being the first thing to go.
Last edited by taylor138; 06-25-08 at 09:32 AM.
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Look at Business Cycles online for the 110mm English Miche Primato Pista BB. Don't buy the 107 by mistake! This will give you 42mm spot on with the adjustable cups. AND it is Cheap which is what you are asking for.....
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If you don't want the more expensive Sugino BB then you can use a Miche Primato Pista BB in the 110 size. The BB is around $25 and has adjustable cups. It is ISO taper and will work fine. Otherwise if you want to spend a bit more any of the Campy 111mm ISO BB's will work. They can be found for $35-45 online. Both of these BB's are sealed and will work fine for street us. The Sugino 75 BB is great but can become damage if not cleaned well from time to time as it is unsealed. It is designed for track use. I can be used on the street, many people use it on the street, but unless you plan on a regimented service schedule, I would go with one of the cartridge styles that are sealed.
Look at Business Cycles online for the 110mm English Miche Primato Pista BB. Don't buy the 107 by mistake! This will give you 42mm spot on with the adjustable cups. AND it is Cheap which is what you are asking for.....
Look at Business Cycles online for the 110mm English Miche Primato Pista BB. Don't buy the 107 by mistake! This will give you 42mm spot on with the adjustable cups. AND it is Cheap which is what you are asking for.....
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Yep, just realized that =(. Any suggestions on the best priced BB to match the 75's to ensure a proper chainline? I think the Pistas rear hub is 42mm but i'm not too sure. The 75's suggest using anything from a 109-110mm BB.
I was looking into order that as well, but I figure you'd have the same problem with the non square tapered BB. The matching RD BB is pretty cheap though, but the combo apparently gives a 45mm chainline which some people have apparently found problematic so I decided it would be best to go for the better cranks anyway. Hopefully somebody else more knowledgable can help out.
My cranks came pretty scratched up so I might just see about trying to buff out some of the scratches first, so I suppose that will end up being the first thing to go.
I was looking into order that as well, but I figure you'd have the same problem with the non square tapered BB. The matching RD BB is pretty cheap though, but the combo apparently gives a 45mm chainline which some people have apparently found problematic so I decided it would be best to go for the better cranks anyway. Hopefully somebody else more knowledgable can help out.
My cranks came pretty scratched up so I might just see about trying to buff out some of the scratches first, so I suppose that will end up being the first thing to go.
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I know at least 10 people running the Miche BB with Sugino 75 cranks. You get what you pay for. Works fine and is a good value for the money. Is it as nice as the matching Sugino 75 BB or a Phil Wood BB? Well, NO! But it is cheap and will do the job. Can I assume you are using this bike on the street?
Last edited by fast_track; 06-25-08 at 09:46 AM.
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Yes, I'm using is solely for the street as a commuter, so the Miche BB sounds like it would suit me well.
Just have to add up the combined costs to see if it's possible right atm. Gonna need a new 42t chainring as well.
Just have to add up the combined costs to see if it's possible right atm. Gonna need a new 42t chainring as well.
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As a note, if you are looking to get into real track cranks most of the quality track chainrings start at 46T and up. A rider on the track would have no real use for a 42T ring. If you look you will see that the 42T chainrings are almost 100% resigned for used with 130 BCD cranksets.
The only one I can think of that is 144 BCD and comes in a 42T is Sugino's Zen Messenger ring. Their are a few 43 and 44's out there but the choice of a 42 is quite limited.
What size cog are you running? If you are starting from scratch you may want to get a more standard track chainrings size that is still cool for the street (like a 46-48T) and then get a cog that is more suited to the gear ratio you want to ride.
Oh, are we talking 1/8 drivetrain? On Bianchi's site for the 08 Pista is doesn't state if the crainring or the cog are 1/8 or 3/32 size but the chain listed (KMC Z610H) is only a 3/32 chain according to KMC's Website so, one can assume that the stock cog and cr on the bike are only 3/32 as well.
So, if you go with the 75's you have one choice for a 42T, 1/8 chainring, and have to get a new cog anyway and a new 1/8 chain on top of the crank arms and new bottom bracket. In effect you are replacing 100% of your drive train! If you are gonna do that, move away from 42T and find another CR to Cog combo that gives you the gear inches you want to ride.
Look at Sheldon Brown's thoughts on gear ratios online, it will be very helpful.
Last edited by fast_track; 06-25-08 at 11:40 AM.
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Thanks again, you've been more than helpful.
Would there be a problem with going with the messenger chainring for now, buying a 16t cog and then switching the chainring later? The reason I ask is because I do plan on moving up to LA within a few months where it's less hilly and there will be access to some tracks.
*Sorry for edit
Would there be a problem with going with the messenger chainring for now, buying a 16t cog and then switching the chainring later? The reason I ask is because I do plan on moving up to LA within a few months where it's less hilly and there will be access to some tracks.
*Sorry for edit
Last edited by taylor138; 06-25-08 at 04:11 PM.
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Thanks again, you've been more than helpful.
Would there be a problem with going with the messenger chainring for now, buying a 16t cog and then switching the chainring later? The reason I ask is because I do plan on moving up to LA within a few months where it's less hilly and there will be access to some tracks.
*Sorry for edit
Would there be a problem with going with the messenger chainring for now, buying a 16t cog and then switching the chainring later? The reason I ask is because I do plan on moving up to LA within a few months where it's less hilly and there will be access to some tracks.
*Sorry for edit
The Zen Messenger rings are nice, not the best, but still a very good chainring. You don't need a $90+ ultra round chainring for a commuter.
Ben Cycle has a lot of the parts we've been talking about and has GOOD photos so take a look if you don't know about them yet
https://www.benscycle.net/index.php?m...65be9fb8b4eac6
Last edited by fast_track; 06-25-08 at 05:18 PM.
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Why would you want to spend all this money upgrading an already decent set of TruVativ cranks? It'd be less hassle, and a wiser use of the cash to spend your money on a decent set of wheels.
I'm guessing as it's an 08 Pista the bike is pretty much new, you could wait until the chainring/sprocket/bb starts wearing out, then upgrade to the 75.
I just got a set of TruVativ Omnium's for 08 Pista and once the rest of my bike arrives I look forward to testing them out. Overkill for street use? definitely.
I'm guessing as it's an 08 Pista the bike is pretty much new, you could wait until the chainring/sprocket/bb starts wearing out, then upgrade to the 75.
I just got a set of TruVativ Omnium's for 08 Pista and once the rest of my bike arrives I look forward to testing them out. Overkill for street use? definitely.
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Pista Truvativ to Sugino RD swap
Yep. I just performed this switch on my '08 Pista and I used an IRD QB-55 JIS square taper bb 68x103mm. The Truvativ Power Spline BB that comes stock is 68x108mm and is ISIS so it must be replaced to use Sugino RD's. I think Sugino makes a 68x103mm square taper as well.