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自転車 Day6 JourneyのPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Day6 Journey 16 ページ。

The Big 4
These are the things people overlook most often
when it comes to regular maintenance.
Underinflated tires.
Check tires weekly to prevent
premature aging of tires, hard pedaling, accidents, and
getting stranded.
Over lubricated chains. Lubrication sounds good but
too much attracts dust and dirt which wears out chains,
derailleurs, and chain rings.
Loose spokes. Check spokes regularly. Loose spokes
lead to broken spokes which can cause accidents and, at
the least, lead to large repair bills.
Seat post too high. NEVER have more than 6" of seat
post showing between the top of the seat post collar and
the bottom of the horizontal backrest tube. A seat post
pulled out too far can lead to serious injury if the seat post
or frame breaks while riding.

General Inspection:

Check for loose parts by raising your bicycle about 3" off the
ground and dropping it on the tires.
Make sure ALL quick release mechanisms/clamps are
locked and tight.
Make sure wheels, fork, headset, and seat post are tight.
Check frame/welds for cracks and bends.
Immediately replace a damaged frame as this can cause a
crash and lead to a severe injury.
Take immediately to your local bicycle dealer.
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