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PART 2
Aluminum Frame Inspection
Section D. Inspect For Safety
GT Bicycle Owner’s Manual
Aluminum Frame Inspection
1. Clean the bike and remove the wheels.
2. Inspect the whole frame carefully for cracks.
Pay particular attention to the underside of
the downtube where it intersects the
headtube
3. Next carefully inspect the area where the
crankset and rear wheel come closest to the
right chainstay, particularly on the innermost
part of the chainstay and the outermost part
of the chainstay. Next look at the welds that
join all of the tubes. Be sure to look at the
inside of the rear triangle or swingarm while
the wheel is out, including the dropouts.
4. Finally check all mounting points such as
disc brake caliper brackets and water bottle
and rack mounts.
Figure 21.
TOPTUBE
DOWNTUBE
HEADTUBE
Inspect this area for cracking
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