1. Cycling PhysicalEducation

2. Parts of a bycicle Cycling

3. Powertrain Set of parts (axle, chainwheel, cranks and pedals) transmittingtheforceexertedbythecyclistonthepedals to therearwheel.

4. Road cyclingcompetition Sport Road-racingbicycle and cyclist Sport that consists of racing a bicycle on a road for one day or in stages. Event that consists of riding a bicycle a given distance on a road as quickly as possible.

5. Cross-country bicycle and cyclist Sport Cross-country bicycle: relativelysmall, sturdybicycledesignedforperformingacrobatics and competing in competitionson rough terrain. Back suspension Device that dampensvibrationsfromthewheels; thisincreasesthebicycle’sstability and itsgriponthetrail. Clipless pedal Pedal with a safety system so that thefoot can beattachedordetachedquickly. Front fork Fork whose air/oil or elastomer suspension provides a controlled ride over rough terrain. Goggles Eyewearwithplasticlensesfitted in a framewitharms; itprotectstheeyesfromflyingmud, stones and insects

6. Downhillbicycle and cyclist Downhillbicycle: small, verysturdybicycleforracingon rough groundwithsteephills and strewnwithobstacles.

7. Pursuitbicycle and racer Pursuitbicycle: bicyclewithlimitedequipment, that is, no brakes, no derailleur (no gears) and no freewheel.

8. BMX Sport that consists of performing freestyle acrobatics using a small, one-speed bicycle. Half-pipe Wooden U-shapedtrack that is set up forperformingvariousacrobatic stunts (such as jumps and slides).