Filing out the cracks will help to prevent new ones starting and the old ones propagating - definitely a good idea - I took a crank off a frame last week where the crack had spread more than a 1/3 of the way across the arm...
@hilarystone started
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Filing out the cracks will help to prevent new ones starting and the old ones propagating - definitely a good idea - I took a crank off a frame last week where the crack had spread more than a 1/3 of the way across the arm...