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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 03-11-07, 03:01 PM   #1
tbrtbx
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B123 vs B123AA

Alright buddies, i've done a search and found nothing so can someone tell me the difference between the two? Weight/handling/crash durability?

Merci.
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Old 03-11-07, 03:04 PM   #2
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The AAs are made of aluminum, the others are made of steel. The steel bars weigh a lot more but cost less.
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Old 03-11-07, 03:07 PM   #3
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Yeah, the AA is alloy and therefore lighter. The steel ones are burly and stiff - I think most of the keirin guys run steel even though it's heavier, because if you're really doing speed, that stiffness is a good thing. Also, they look better and they're not bad when you ride them 'naked' (no grips). The aluminum ones are flexier, lighter and more expensive, and don't look shiny. I run the steels and they are fine - my bike is still very light even w/ Fusion rims and 80's Tange no. 2 steel, though if I switched out the bars and seatpost I could subtract a pound or two.
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Old 03-11-07, 03:14 PM   #4
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Originally Posted by andre nickatina
I think most of the keirin guys run steel even though it's heavier, because if you're really doing speed, that stiffness is a good thing.
Not that it matters, but they don't - they run the AA bars with the steel NJS-Pro stem.
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Old 03-11-07, 03:18 PM   #5
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Thanks guys!

By the way, why the hell can't i find a 34cm Nitto B123? I love really narrow handlebars
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Old 03-11-07, 03:20 PM   #6
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Quote:
Originally Posted by mcatano
Not that it matters, but they don't - they run the AA bars with the steel NJS-Pro stem.
Yes, that is definitely true.

Also, running track bars on the street is still monumentally
stupid.
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Old 03-11-07, 03:21 PM   #7
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damn this is the stupidest question to come down the pike in a while

have your ever looked at a product and actually read the description
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Old 03-11-07, 03:26 PM   #8
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damn this is the stupidest question to come down the pike in a while

have your ever looked at a product and actually read the description
No i get all my information from bikeforums.net
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Old 03-11-07, 03:30 PM   #9
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they're slightly different in size as well. see: http://www.businesscycles.com/tbars-nitto.htm
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Old 03-11-07, 03:35 PM   #10
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Quote:
Originally Posted by bonechilling
Also, running track bars on the street is still monumentally
stupid.
I don't really understand this anti-track bars sentiment after riding them in the streets myself. I run some 39cm Nittos and they work just as well as my flip/clipped road bars, except with these you can get super aero when the winds act up. Do I ride with my hands next to the stem like a lot of people? No. And my wrists have yet to hurt. The only thing I can see is that it wouldn't be the most optimal setup for long distances, as in riding to the suburbs and back, but for around the city, it's fine. It takes maybe a day or two to adapt and then they feel as fine as anything else. With all that said, some 125's may be better than 123's for street, but they're both track anyway.
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Old 03-11-07, 03:37 PM   #11
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is your stem a negative or positive degree stem mine is a zero so my track drops are fine on the street I also am built like big foot so I need something out there to grab
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Old 03-11-07, 03:42 PM   #12
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is your stem a negative or positive degree stem mine is a zero so my track drops are fine on the street I also am built like big foot so I need something out there to grab
Me too. I think i'll get the steel bars.
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Old 03-11-07, 03:46 PM   #13
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Quote:
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is your stem a negative or positive degree stem mine is a zero so my track drops are fine on the street I also am built like big foot so I need something out there to grab
Negative rise and it's fine. The stem on my other bike was almost level, slightly negative, and it was cool too. I like to ride in a foward position anyway, it's more comfy when doing speed.
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Old 03-11-07, 04:44 PM   #14
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you can't get any leverage or not nearly as much as you can with hoods/bullhorns.
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Old 03-11-07, 05:36 PM   #15
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you can't get any leverage or not nearly as much as you can with hoods/bullhorns.
werd me likey bullhorns but it is flat where I live so....
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Old 03-11-07, 05:43 PM   #16
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I was just going to make this same topic, weird.
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Old 03-11-07, 05:53 PM   #17
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So is it worth it? I was thinking of getting them.. I ride with the steel drops on the street and it can be a little rough on the hands.. would the Aluminum bars help? Are they too flexy for the track?
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Old 03-11-07, 06:50 PM   #18
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I was just about to order the steels in 36 and then you say they're rough on your hands. Damn you!
This may take some thinking about. I have some really ****ed up alu bars with no grips/tape, and they are they aren't hard on my hands. They feel nice as could be expected.

Could somebody tell me the weight differences between the steel/alloy in the same size?
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Old 03-11-07, 07:54 PM   #19
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Check the Business Cycles website, they list the weight.
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Old 03-11-07, 08:17 PM   #20
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As a general rule, steel is considered much EASIER on the
hands than aluminum. As for the idea that the aluminum
bars are too flexy for the track: Nitto aluminum bars are
still a standard item at all levels of competitive track racing.
If Theo Bos doesn't break them, then you won't either.
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Old 03-11-07, 08:26 PM   #21
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Check the Business Cycles website, they list the weight.
Damn, the steels are twice the weight...
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Old 03-11-07, 08:55 PM   #22
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300g is less than the weight of a decent sandwich. If you want the ride and look of steel, it's not a big problem. But if you like the flex, or the extra-nimble bar, then enjoy your weight savings. FWIW i have alloy bars on both my bikes (anatomic road drops and RB021s) and love the feel of both, but will probably put steel 123s or 125s on my next build.
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Old 03-11-07, 09:26 PM   #23
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Yeah, your probably right. The thing is, my frame is really really flexible aluminium, and it pisses me off a bit sometimes. 300g isn't a big deal.
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Old 03-11-07, 09:30 PM   #24
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Steel has generally been fine on my hands. I'm running naked tops and grips on the bottom, but that may change soon.
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Old 03-12-07, 12:02 PM   #25
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Yeah, your probably right. The thing is, my frame is really really flexible aluminium, and it pisses me off a bit sometimes. 300g isn't a big deal.
Shall we open a new can of worms about frame flex?
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