Laserfiche WebLink
To really become good at jumping your bike you must first understand the various types of jumps and related <br /> terminology. From there, it's time to understand the what, why and how of jumping.And once you've got all that dialed, <br /> learn how to apply your new understanding of jumping mechanics to all the different types of jump features you might <br /> encounter on a trail. Learning how to jump isn't a straightforward journey—it's takes time, practice, and a good <br /> guide. That's where we come into play. Let's get started. <br /> The following illustration breaks down the parts and types of jumps you may encounter on J-Gulch Dirt Jump Park. <br /> The anatomy of jumps �- <br /> There is infinite variation in the shapes and sizes of jumps,but the same Table-top(has a flat top) <br /> basic principles apply everywhere.Good dirt jumps will be close together <br /> with smooth,rounded transitions to help with pump and flow,but jumps on <br /> a downhill course could be very different,usually designed to be ridden at <br /> high speed.Here is a basic introduction to some aspects of jump design. Double(has separate take-off and <br /> landing ramps).Gap can be severe or <br /> Best smooth and rounded. <br /> Transition .Lip landing <br /> (tranny) area <br /> Step-up(landing is higher than take- <br /> Take-off Landing off).Again,gap can vary. <br /> ..---...............------......--......---------------------------........-----......-------............---............•------•---......--................----•------•--------------------......--......--......--......----......-------- <br /> Smooth,rounded transitions between jumps Pump <br /> Pump <br /> Pump 1111, 11 All, <br /> ►. T ► . ... Launct <br /> Roll-in Roller/Pump bump Set-up jump Main jump <br /> The approach— Used to get speed with- Small and easy jump What it all leads up to.Usually the last jump in the line <br /> nicest if there's a out pedalling,and starts used to gauge speed will have a mellower landing to make it easier to land <br /> downhill with little the rhythm of the line. and get pump for the tricks.The others will have nicely curved and steep <br /> or no pedalling. main jumps. landings to keep pump and rhythm for the next jumps. <br /> 18 Steps to Building the Dirt Jump Park and status of each step <br /> #1. Permission and Partnership Done <br /> #2. Team Input Done <br /> #3. Location Done (Property Survey completed) <br /> #4. Water Source Natural PWN conditions <br /> #5. Risk Management Plan Recreational immunity; IMBA, USDA Forrest Service, WA DNR, <br /> Evergreen MTB, NRPA, AWC <br /> #6. Signage System Underway <br /> #7. Indemnification Risk Management <br /> #8. Schedule Inspection and Maintenance Underway <br /> #9. Design Underway. 3 Lines, using IMBA Trail Difficulty Rating System. <br /> Easy, More Difficult, Difficult <br /> Surface Features, Gradient, Width,Technical, Fitness Level <br /> #10. Design for EVERYONE "Jumping is all about progression:" <br /> #11. Table Tops and Gaps <br /> #12. Measurements and Geometry <br /> #13. Construction Plan Cost, Permits, Equipment, Labor <br /> #14. Good Dirt Screened Loam with a fairly high clay content. <br /> #15. Grade Site for Drainage Gentle slope perpendicular to the jump lines <br /> #16. Build and Compact Formed Rough Jumps to be sculpted and packed <br /> #17 Stewardship Done. Youth Advisory Council, Mentorship, Organized Local Group <br /> Receiving guidance to operate under established By-laws and APA WA <br /> Youth in Planning Task Force Model. <br /> #18. LEARN <br />