Full Speed Ahead (FSA) has received reports that the bolt shoulder (Figure 1)on the non-drive Gossamer BB30 series crankarms can crack and break if the installer exceeds the recommended torque specification while tightening the crankbolt. If the bolt shoulder is cracked or damaged in any way, the crank arm can potentially loosen, allowing the rider to lose control and fall.
Gossamer BB30 non-drive crank arms that are subject to recall have serial numbers beginning with 10B, 10C, and 10D. Serial numbers are located on the backside of the crankarm by pedal threads (Figure 2).
Models affected are: Gossamer Pro BB30 CK-OS6021CC/ Gossamer Pro Compact BB30 CK-OSC6021CC/ Gossamer BB30 CK-OS6020SS/ Gossamer Compact BB30 CK-OSC6020SS.
MegaExo crankarms are not affected. Gossamer BB30 Triple cranksets are not affected.
Gossamer BB30 Cranksets have been assembled as original equipment on the following bicycles for Europe :
CAAD 10 105
CAAD 8 105
Synapse Carbon 105 / Apex
Synapse Alloy 105 / Apex
Super Six 5 105
SEMPRE Veloce 10v
Bicycles with non-drive crank arms subject to recall should not be ridden until a replacement non-drive crank arm has been installed.
To receive replacement non-drive crankarms and for other questions, please contact Full Speed Ahead Europe at +390396885265 or contact: