s profile on instagramview thegravitygroup s profile on youtube toggle navigation the gravity group llc menu home about us portfolio roller coaster projects timberliner trains services news contact us switchback to the future riders on switchback enjoy this thrilling dual direction ride in a compact layout . located at zdt s amusement park in seguin tx switchback is the first and only wooden tracked shuttle coaster in the world . take a ride the irish legend awakens experience europe s first over banked turn on a wooden coaster and 19 moments of airtime on the c chulainn coaster ireland s first wooden roller coaster . take a ride timber timber is the first new wooden roller coaster to be built in france in nearly two decades . riders are enjoying this popular attraction at walibi rh ne alpes full of thrills for all ages take a ride explore our collection of wooden roller coasters that transcend cultural boundaries to bring exhilarating rides to people around the world . timberliner trains are the best choice for both the riders and the ride structure on a wooden coaster . read more about the trains for the modern wooden coaster . with remarkable smoothing technology and the most experienced team of wooden roller coaster engineers let the gravity group breathe new life into your classic rides . interested in more information about a product or service we offer get in touch with the team at the gravity group contact us take a look at the newest projects from the gravity group worldwide fun from the wooden roller coaster experts . see all projects timber switchback the c chulainn coaster 2016 the gravity group llc 1 513 948 8400