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Alan Thread
Dec 4, 2018
000
610cc
bent
berg
cam
rpm
twin
Replies: 8
Forum: Mechanical
G
Has anyone built a FE570 Berg with the Thumper Racing 610cc kit yet ???
Looking for some feedback from anyone who may have already done one before I pull the trigger
Gazza Thread
Jul 15, 2010
570
610cc
kit
racing
thumper
Replies: 16
Forum: Mechanical
