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Old 05-23-07, 07:46 AM   #1
wiles9
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Adjustable Stem

I recently bought a BBB adjustable stem at about 35 euros. Dont know how good this make is, but the stem seemed to be the job.

Heres some info:

BHS-22 HighSix
Bar bore: 25.4mm.
Weight: 274 grams.
Extensions: 90, 110, 130mm.

BHS-23 HighSix OS
Bar bore: 31.8mm.
Weight: 282 grams.
Extensions: 90, 110, 125mm.

Special Features
Adjustable: 0 to 60 degrees. High angle for riding comfort and steering control. Low angle for speed and less wind resistance.
Superlight 6061 T6 alloy forged.
Comes in high-polished silver and sand-blasted black.
Steering tube: 28.6mm.
Angle: Adjustable 0 to 60 degrees.
For hybrid bikes.


http://www.bbbparts.com/


Seems after trying two of the stems, no matter how much you tighten the adjustable part, the stem has movement in it. Design fault or bad batch who knows. Left me with a sore wrist, and back with my original stem....
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Old 05-23-07, 07:57 AM   #2
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IMO, adjustable stems are useful for figuring out what stem height/angle works best for you, so you can then get the proper fixed stem.
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Old 05-23-07, 02:45 PM   #3
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Quote:
...Design fault or bad batch who knows....
I know two guys who got adjustable stems at different times. Both were returned in a few days. In both cases, the stems woudn't hold a position.
Chipcom has a good explaination of why they even sell these things. They should market them as such.
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Old 05-23-07, 05:21 PM   #4
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Some of them do work well and hold adjustment. My neighbor has rode with one on his Giant road bike for years, and he's ~220 pounds.

But, I agree, mostly for a learning tool - always better off rigid stem.
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Old 05-23-07, 05:37 PM   #5
robmcl
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The Pro-logic stem that comes with the Safaries seems to work fine.
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Old 05-23-07, 09:26 PM   #6
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I got about 5 Kalloy adjustable stems that work fine. Not as stiff as a fixed stem, but holds their adjustment. Great for someone with back issues. One is on my regular commuter. Never had a problem with it. I ride this bike 6 out of 7 days a week.
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Old 05-24-07, 09:47 AM   #7
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I have and adjustable quill stem (Radical) that has kept its adjustment for a year. My son's adjustable quill stem on his Giant kept losing its adjustment until I put loctite on the bolt - it has now stayed put for years.
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Old 05-24-07, 10:05 AM   #8
Shiznaz
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The look ergostem adjustable stems are rock solid but weigh a total ton
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