1. Skateboard Wheels By Tyler Beumel

2. The First Skateboards The early 1900’s Roller Skates Homemade

3. My Wheel Timeline 1900’s / took wheels off roller skates 1955 / metal first skateboards electrocution 1963 /added clay wheels but not much different 1973 / urethane /faster, griped better,cushioned

4. My Wheel Timeline 1976 percussion bearings/ flexible, better traction 1977-1983 High Rebound Double Radial softer urethane more grip 1985 Ramp Wheel / harder, faster, good for pools and ramps 1989 street wheel Smaller, Lighter More Stability 1992 street wheel Tiny Hard, Smooth Surface

5. Pros A nation wide culture Transportation Exercise

6. Con’s Flat spots Caked with dirt A little pricey

7. The Numbers Behind Skateboarding 11 million Americans $5.7 billion in annual revenue 600 to 700 skateboards a month Surfing and snowboarding combined 13 million skaters 2500 skate parks

8. The Wheel Experience

9. The Production Of Wheels Molds Higher quality heated & cooled several times Lower quality – heated & cooled once Lathes

10. My Sources 1990s, the middle of the, such exposure gave the sport an air of legitimacy. It is not as dangerous a sport as many think. In 1997 there were 8.2 million skateboards, around 48, 186 reported injuries, 644, and 921 reported injuries (0.124% resulting in hospitalization)—the fear seems misplaced.. " Skateboard: How Products are Made." eNotes - Literature Study Guides, Lesson Plans, and More.. N.p., n.d. Web. 3 Dec. 2009.. "The Evolution Of Skateboard Wheels | Skateboarding Magazine." Skateboarding Magazine - Skateboard Mag - Skate Magazine. N.p., n.d. Web. 3 Dec. 2009.. mark.jpg&imgrefurl=http://sonicpromos.com/compress_ts/index/page:8/limit:50&usg=__kyMphcsMiKb XFb2t1jZ3R6Yg15A=&h=450&w=575&sz=32&hl=en&start=21&um=1&itbs=1&tbnid=8VAOvDvwxlcDSM:&tb nh=105&tbnw=134&prev=/images%3Fq%3Dquestion%2Bmark%2Bin%2Bskateboard%2Bwheels%26ndsp %3D18%26hl%3Den%26safe%3Dactive%26rls%3Dcom.microsoft:en- us%26sa%3DN%26start%3D18%26um%3D1>. " Google Image Result for http://www.gifs.net/Animation11/Sports/Roller_Sports/down_the_road.gif." Google Images. N.p., n.d. Web. 6 Dec. 2009.. Works Cited "Tony Hawk Foundation - Background." Tony Hawk Foundation. N.p., n.d. Web. 10 Dec. 2009.. MLA formatting by BibMe.org.

11. My Sources Washburn, David, and San Diego. " SkateboardDirectory.com: News : Skateboard Pioneer Tony Alva Forges Ahead." SkateboardDirectory.com: The Skateboard Directory: Home. N.p., n.d. Web. 3 Dec. 2009.. “ Google Image Result for http://school.discoveryeducation.com/clipart/images/question.gif." Google Images. N.p., n.d. Web. 3 Dec. 2009.. " Google Image Result for http://sonicpromos.com/img/gallery/question-mark.jpg." Google Images. N.p., n.d. Web. 3 Dec. 2009. <http://images.google.com/imgres?imgurl=http://sonicpromos.com/img/gallery/question- " Google Image Result for http://www.gifs.net/Animation11/Sports/Roller_Sports/Bart_on_skateboard.gif." Google Images. N.p., n.d. Web. 6 Dec. 2009.. " Google Image Result for http://www.gifs.net/Animation11/Sports/Roller_Sports/down_the_road.gif." Google Images. N.p., n.d. Web. 6 Dec. 2009.. " Google Image Result for http://www.sailingscuttlebutt.com/blog/uploaded_images/feature29-759750.jpg." Google Images. N.p., n.d. Web. 6 Dec. 2009..

12. My Sources " Google Image Result for http://www.radicalskatekids.com/images/skatehistory/1940s/1947fruitcratescooter_making.jpeg." Google Images. N.p., n.d. Web. 3 Dec. 2009. <http://images.google.com/imgres?imgurl=http://www.radicalskatekids.com/images/skatehistory/1940s/ 1947fruitcratescooter_making.jpeg&imgrefurl=http://www.radicalskatekids.com/history.html&usg=__UiZ k4ww- DGhuSe0fOYmMp9OvkEQ=&h=600&w=453&sz=34&hl=en&start=47&um=1&itbs=1&tbnid=6UqQ__AF6E dg9M:&tbnh=135&tbnw=102&prev=/images%3Fq%3Dmaking%2Bskateboard%2Bwheels%26ndsp%3D18% 26hl%3Den%26safe%3Dactive%26rls%3Dcom.microsoft:en- us%26sa%3DN%26start%3D36%26um%3D1>. "Science of Skateboarding: Skateboard Design: Wheels." Exploratorium: the museum of science, art and human perception. N.p., n.d. Web. 3 Dec. 2009.. " Google Image Result for http://www.sailingscuttlebutt.com/blog/uploaded_images/feature29- 759750.jpg." Google Images. N.p., n.d. Web. 6 Dec. 2009..

13. Questions