// MANUAL
DIRT JUMP
• CONDITION 5: Bikes designed for jumping, hucking, high
speeds, or aggressive riding on rougher surfaces, or landing
on at surfaces. How-ever, this type of riding is extremely
haz-ardous and puts unpredictable forces on a bicycle which
may overload the frame, fork, or parts. If you choose to ride in
Condition 5 terrain, you should take appropriate safe-ty precautions such as more frequent
bike inspections and replacement of equipment. You should also wear comprehensive safe-
ty equipment such as a full-face helmet, pads, and body armor.
• INTENDED: For man-made dirt jumps, ramps, skate parks other predictable obstacles
and ter-rain where riders need and use skill and bike control, rather than suspension. Dirt
Jumping bikes are used much like heavy duty BMX bikes.
• A Dirt Jumping bike does not give you skills to jump. Read Section 2. F, p.11.
• NOT INTENDED: For terrain, drop offs or landings where large amounts of suspension
travel are needed to help absorb the shock of landing and help maintain control.
• TRADE OFF: Dirt Jumping bikes are lighter and more nimble than Freeride bikes, but
they have no rear suspension and the suspension travel in the front is much shorter.
CYCLO-CROSS
• CONDITION 2: Bikes designed for riding Condition 1, plus
smooth gravel roads and improved trails with moderate grades
where the tires do not lose ground contact.
• INTENDED: For cyclo-cross riding, training and racing. Cyclo-
cross involves riding on a variety of terrain and surfaces including dirt or mud surfaces.
Cyclo-cross bikes also work well for all weather rough road riding and com-muting.
• NOT INTENDED: For off road or mountain bike use, or jump-ing. Cyclo-cross riders and
racers dismount before reaching an obstacle, carry their bike over the obstacle and then
remount. Cyclo-cross bikes are not intended for mountain bike use. The relatively large
road bike size wheels are faster than the smaller mountain bike wheels, but not as strong.
APPENDIX C
THE LIFESPAN OF YOUR BIKE AND ITS COMPONENTS
1. Nothing Lasts Forever, Including Your Bike.
When the useful life of your bike or its components is over, continued use is hazardous.
Every bicycle and its component parts have a nite, limited useful life. The length of that
life will vary with the construction and materials used in the frame and components; the
maintenance and care the frame and components receive over their life; and the type
and amount of use to which the frame and components are subjected. Use in competitive
events, trick riding, ramp riding, jumping, aggressive riding, riding on severe terrain, riding
in severe climates, riding with heavy loads, commercial activities and other types of non-
standard use can dramatically shorten the life of the frame and components. Any one or a
combination of these conditions may result in an unpredictable failure. All aspects of use
To Next Page
Loading...
