Pro Rider: Chris Jenks
National No.: 7
Age: 26
Hometown: Washington, West Virginia
Best National finish: Third in Pro class at Crawfordsville, IN
Sponsors: Four-Stroke Tech, Badger Racing, Big Gun Exhaust, Cometic Gasket, Douglas Wheel, DP Brakes, DuraBlue, Elka Suspension, IMS, Janssen Racing, Maier, Maxxis, Moose Racing, Rekluse Motor Sports, Renthal, Wiseco
Jenks' Four-Stroke Tech Honda TRX530R
Engine
Tuner: Mickey Dunlap
Displacement: 530cc
Bore x stroke: 99x68.8mm
Piston: FST/Wiseco custom piston
Rod: FST forged-billet rod
Crank: FST stroker crank
Porting: FST
Valves: Stock
Cams: FST
Carburetor: Stock
Radiator: Stock
Ignition system: Stock
Airbox: UM
Air filter: White Brothers 250R
Air-filter oil: Twin Air
Exhaust system: Big Gun Exhaust
Oil: Amsoil
Fuel: Klotz
Mechanic: Chris Jenks
Drivetrain
Clutch basket: Wiseco
Plates: Stock
Springs: Rekluse Z-Start auto clutch
Sprockets (f/r): Renthal/Renthal custom-anodized orange
Gearing (f/r): 15/38
Chain: Renthal
Hubs (f/r): DuraBlue/DuraBlue X33
Suspension
Front
A-arms: Janssen Racing Outlaw long-travel, +1
Shocks: Elka Suspension fully adjustable long-travel
Tie-rods: Janssen Racing
Rear
Swingarm: Janssen Racing Outlaw
Shock: Elka Suspension fully adjustable long-travel
Linkage: Elka Suspension
Chassis
Frame: Stock
Frame mods: Gusseting
Steering stem: Janssen Racing, +2
Axle: DuraBlue X33
Footpegs: IMS/Roll Design
Nerf bars: AC Racing/IMS
Bumpers: IMS/Roll Design
Tires & Wheels
Front
Tires: Maxxis iRazr (21x7-10)
Wheels: Douglas beadlock, 4+1 offset
Rear
Tires: Maxxis iRazr (20x11-9)
Wheels: Douglas beadlock, 3x5 offset
Brakes
Calipers (f/r): Stock
Rotors (f/r): Stock
Pads: DP Brakes
Lines: Streamline
Brake pedal: IMS/Roll Design
Brake fluid: Honda
Controls & Misc.
Handlebar: Renthal custom-anodized orange
Grips: Renthal
Steering stabilizer: None
Clutch lever: Stock
Throttle housing: Stock
Cables: Stock
Seat: Stock
Seat cover: Adapt Racing
Graphics kit: Adapt Racing
Rear grab bar: AC Racing/IMS
Shift lever: AC Racing/IMS
Gas tank: IMS
Front and rear fenders: Maier Zest Orange
Hand guards: Maier
Front hood scoop/number plate: Maier
Rear skid plate and belly pan: Badger
Total cost (approximate): $13,000
Pro Rider: Bryan Cook
National No.: 6 (Rookie of the Year)
Age: 25
Hometown: Cesar, North Carolina
Best National finish: Won 2004 Patriot GNCC in Virginia
Sponsors: Four-Stroke Tech, Badger Racing, Big Gun Exhaust, Cometic Gasket, Douglas Wheel, DP Brakes, DuraBlue, Elka Suspension, IMS, Janssen Racing, Maier, Maxxis, Moose Racing, Rekluse Motor Sports, Renthal, Wiseco
Cook's Four-Stroke Tech Yamaha YFZ500
Engine
Tuner: Mickey Dunlap
Displacement: 500cc
Bore x stroke: 98x66mm
Piston: FST/Wiseco custom piston
Rod: FST forged-billet rod
Crank: FST stroker crank
Porting: FST
Valves: Stock
Cams: Stock
Carburetor: Stock
Radiator: Stock
Ignition system: Stock
Airbox: UM
Air filter: White Brothers 250R
Air-filter oil: Twin Air
Exhaust system: Big Gun Exhaust
Oil: Amsoil
Fuel: Klotz
Mechanic: Doug Cook
Drivetrain
Clutch basket: Wiseco
Plates: Stock
Springs: Rekluse Z-Start auto clutch
Sprockets (f/r): Renthal/Renthal custom-anodized orange
Gearing (f/r): 14/36
Chain: Renthal
Hubs (f/r): DuraBlue billet/DuraBlue X33
Suspension
Front
A-arms: Janssen Racing Outlaw long-travel, +1
Shocks: Elka Suspension fully adjustable long-travel
Tie-rods: Janssen Racing
Rear
Swingarm: Janssen Racing Outlaw, with Honda-style bearing carrier
Shock: Elka Suspension fully adjustable long-travel
Linkage: Elka Suspension
Chassis
Frame: Stock
Frame mods: Gusseting
Steering stem: Janssen Racing, +2
Axle: DuraBlue X33
Footpegs: IMS/Roll Design
Nerf bars: AC Racing/IMS
Bumpers: IMS/Roll Design
Tires & Wheels
Front
Tires: Maxxis iRazr (21x7-10)
Wheels: Douglas beadlock, 4+1 offset
Rear
Tires: Maxxis iRazr (20x11-9)
Wheels: Douglas beadlock, 3x5 offset
Brakes
Calipers (f/r): Stock
Rotors (f/r): Stock
Pads: DP Brakes
Lines: Streamline
Brake pedal: IMS/Roll Design
Brake fluid: Yamaha
Controls & Misc.
Handlebar: Renthal custom-anodized orange
Grips: Renthal
Steering stabilizer: None
Clutch lever: Works Connection
Throttle housing: Stock
Cables: Stock
Seat: Stock
Seat cover: Adapt Racing
Graphics kit: Adapt Racing
Flywheel weight: Trail Tech 8-oz
Oil tank with shield: UM
Rear grab bar: AC Racing/IMS
Shift lever: AC Racing/IMS
Gas tank: IMS
Front and rear fenders: Maier Zest Orange Bill Ballance-style
Headlight covers: Maier Zest Orange
Hand guards: Maier
Front hood scoop/number plate: Maier
Rear skid plate and belly pan: Badger
Total cost (approximate): $13,000