Next generation X4F front wheel touring car moves to the X4 platform with advanced upper/lower arm suspension mounted to a new mid-motor chassis layout for improved balance and handling Unique CFF™ - Carbon Fiber Fusion upper and lower suspension arms for outstanding handling & durability All suspension components mount directly to the CFF™ arms without any additional brackets, inserts or bushings for accuracy and reliability ARS suspension with highly adjustable geometry settings including roll center, caster and an active toe adjustment Precision Hudy Spring Steel™ pivot balls in all suspension pivots for smooth suspension movement All-new hubs are universal front and rear to reduce the number of spares for easier maintenance New anti-roll bar shapes match the updated mounting points on the CFF™ suspension arms All-new aluminum shock towers with multiple shock mounting positions for maximum adjustability All-new upper bulkheads with caster inserts for quick setup changes feature centering pins for precise installation and improved reliability Lower bulkheads updated with raised diff height option for improved cornering speed Bulkheads and motor mount feature centering pins for easy assembly and consistent geometry setting All-new super-strong one-piece motor mount for better reliability and has special countersunk holes for purpose-made tweak-free top deck screws Motor mount with top access to the motor for easier gear mesh adjustment Perfectly symmetrical chassis designed to work with the all-new CFF™ suspensions, motor mount and bulkheads All-new top deck with a narrow shape for easier installation & improved handling Various Multi-Flex settings out of the box Rear body mounting system is connected directly to the chassis for improved downforce and traction Adjustable front body up-stop system incorporated into the front upper arm allows for lower front body positioning to improve high speed steering & stability Updated gear diff for the centered belt position that improves consistency & forward traction Redesigned aluminum layshaft is secured by a new battery backstop washer New super narrow, lightweight & perfectly balanced wheel hubs New longer driveshafts for better stability and drivetrain efficiency Improved steering system with a more efficient geometry and lower height for reduced play and more consistency & adjustability All-new aluminum steering arms included in the kit with improved geometry All-new steering bridge with adjustable steering backstop to control steering angle Electronic layout moves the servo to the battery side for better weight balance when using a low-profile shorty battery Motor moved forward to place more mass over the front axles for improved balance for the FWD class All-new 100g weight in the front bumper for optimized weight balance out of the box All-new foam bumper from stronger material for improved durability and weight balance