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Old 11-21-10, 11:18 PM   #1
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Widespread bicycle recall due to faulty crank
A Washington-based bicycle component manufacturer is recalling 9,300 bicycles that were outfitted with a faulty crankset that can break, causing falls and injuries.

The recall involves 21 different bicycle models from 8 bicycle brands (see list below) that were sold between February and October this year.

The US Consumer Protection Agency urges owners of the listed bicycles to stop using them immediately and take them back to the dealer for inspection and free replacement of the faulty crank arm. Eleven breaks have been reported, and two injuries.


The importer, Full Speed Ahead of Woodinville, Wash., issued the recall for its BB30 Gossamer crankset installed as standard equipment. The cranks were manufactured in Taiwan by TH Industries.

The cranks involved have two drive gears (triples are not involved in the recall). They are painted either black with "Gossamer" printed in white on the arm or white with "Gossamer" printed in black on the arm. The crank arms at fault have serial numbers beginning with either 10B, 10C, or 10D on the backside of the arm, near the pedal threads.

If the fixing bolt on the non-driver crank arm is over-tightened, the bolt shoulder can crack or break, causing the crank arm to fall off the bicycle.

The bicycle models in the recall are:

2010 Sempre Ultegra

2010 CAAD9 5, CAAD9 5 Feminine
2010 Six Carbon 5
2010 Slice 4, Slice 4 Nytro, Slice 5
2010 Synapse Carbon 4, Carbon 4 Feminine, Carbon 5
2011 CAAD10 5 105, CAAD10 5 105 Feminine
2011 Slice 5, Slice 5 Womens
2011 SuperSix 5 105, SuperSix 5 105 Womens
2011 Synapse Carbon 4 Rival, Carbon 4 Rival Womens, Carbon 5
2011 CAAD8 5 105
2011 CAADX 105 Cyclocross

2011 F75
2011 F75X

2010 ACR 1.0
2010 ACR 2.0
2010 ACR 3.0

Quintana Roo
2010 CD.0.1

2010 C3

2011 RX 1.0
2010 RX 1.0

2010 CFR Comp

More information

For additional information on obtaining a free replacement non-drive crank arm, contact Full Speed Ahead toll-free at (877) 743-3372 between 9 a.m. and 5 p.m. PT Monday through Friday, via email to [email protected], or visit the firmís website at (pdf)
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Old 11-22-10, 09:12 AM   #2
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If only they'd up the price a bit on bikes and USE THE CRANK FROM THE GROUPSET YOU CLAIM THE BIKE HAS.

I hate it when they cheap out on the crank.
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Old 11-22-10, 09:40 AM   #3
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Doesn't sound like its necessarily a design defect, but more of an assembly defect, overtightening of a fastener.
Il faut de l'audace, encore de l'audace, toujours de l'audace

1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
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Old 11-22-10, 09:47 AM   #4
Faster but still slow
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Undertighten and they fall off. Overtighten and they fall off. This whole ISIS style of crank/BB interface sucks.
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