After the success of the Hot Bike/S&S Cycle 124-inch VFI Challenge project, S&S President, Brett Smith, felt it was time to form an S&S specific sportsman class in the AHDRA. The Sunday after the shootout in Earlville, IA, on July 10th, Brett called Craig Tharpe and Colbert Seagraves of the AHDRA with a proposal.
After Bill McGrew of the AHDRA compiled an original list of rules, S&S Race Department employees, Jody Anderson and Ted Grabowski worked with S&S Media and Events Manager, James Simonelli, and Bill to fine tune them. They were introduced during today’s Rider’s Meeting at the S&S sponsored AHDRA Thunder in the Valley Nationals in Bristol, TN.
“I really believe this class reflects the desires of the V-Twin enthusiast,” said Brett. “James’ idea for a marketing project showcasing our 124-inch VFI engine has morphed into what will become one of the most popular and competitive classes in the AHDRA. My hat’s off to James for the original idea and to the AHDRA for their willingness to implement my suggestion. Now I’m looking forward to watching the entrants next year in this 124-inch S&S Challenge class.”
S&S Cycle has agreed to sponsor the purse for the class, which will be one of the richest sportsman classes in the AHDRA, but will compete using a heads up .400 pro tree. A complete list of rules can be obtained through the AHDRA or the S&S Cycle, Inc. Race Department. Or just scroll down, damnit.
For more information, contact Jody Anderson at 608-627-0223
mailto:janderson@sscycle.com
Ted Grabowski at 608-627-0267
mailto:tedg@sscycle.com.
The S&S website is located at www.sscycle.com.
S.S.C. CLASSS&S 124 CHALLENGE
Designation: “SSC” followed by bike number.
Reserved for street legal V-Twin cylinder configuration motorcycles powered by S&S 124 c.i. Super Sidewinder Plus Evo style or Twin Cam engine. Must be licensed and registered for street use and registration must match the VIN number on the motorcycle (no dealer tags). Class utilizes a heads up .400 pro tree. Motorcycle must be ridden under its own power to staging, starting line and back to the pit area after completion of run – no towing or pushing allowed (except for verified breakage after the conclusion of a run).
Requirements and Specifications
Minimum weight at conclusion of run, including rider, must be 750 lbs.
1. ENGINE
Engine: Must be S&S 124 cubic inch Evo style, or twin cam style,or TC with V2 mounts, and must use all S&S components. S&S logos must be clearly visible. S&S pistons are supplied with a dry film lube from the factory. No additional internal engine coating is permitted (i.e., friction reduction or thermal barrier treatments).
Configuration: 4-1/8 bore x 4-5/8-inch stroke. Maximum overbore .030. Connecting rod length 7.668.
Induction: Naturally aspirated S&S VFI with supplied module or one S&S carburetor. VFI must use a radiused inlet, air cleaner assembly, or tuned runners. Carburetor may be modified and air filter, velocity stack, or radiused inlet is required.
Cylinder Heads: Must use either S&S SSW or B2 style heads. Porting is allowed, but the original factory port opening size, shape, and location must be maintained. Oversize valves are not allowed. Valve sizes are to be as follows. For the SSW head- 2.00-inch int. and 1.605-inch exh.. For the B-2 head 2.220-inch int. and 1.800 exh.
Pistons: Any S&S 4-1/8 bore (up to +.030 oversize) piston may be used.
Camshaft: S&S .640 grind only.
Fuel: C-10. No additives. No nitrous.
2. DRIVE TRAIN
Chain Guard: Chair or belt primary and chain or belt secondary. Both must have guards.
Transmission: Any type of five or six-speed foot shift only transmission is allowed. No automatic transmissions. Clutch must be hand operated. No clutch assists or lockup clutches are allowed. No ignition electric kill or interrupt, or air shifters or electronic solenoid shifters are allowed to aid shifting. Internal modifications are limited to back-cut, clearance, and lightening operations.
3. SUSPENSION AND BRAKES
Brakes: Front and rear mandatory (disc or drum).
Controls: Handle bar controls must be located in safe, workable position. Foot pegs and foot controls shall be located ahead of swing arm pivot. Snap-back throttle return with dual cables is mandatory.
Suspension: Must have a working front and rear suspension. Rigid frames are not allowed. Front suspension minimum size is 32 mm with a minimum of 2-inch travel. Rear suspension must have shocks, not struts. Rear suspension must have a minimum of 1-inch travel.
4. FRAME
Frame: Must be commercially available with at least 25 units being produced per year.
Ground Clearance: 2-inch minimum with rider on bike (including exhaust and kickstand) and rear tire pressure of 10 PSI.
Wheelbase: 68 inches maximum.
Wheelie Bars: Are not allowed.
5. WHEELS AND TIRES
Tires: Tires must be V-rated, D.O.T. approved, commercially available motorcycle tires. No car tires are allowed. Must have 2/32 tread on front and rear. Any size.
Wheels: Stock O.E.M. wheels or aftermarket performance wheels of any size.
6. BODY
Body: Any type allowed.
Fairing: Allowed
Seat: Stock O.E.M. or seat with a step up. All seats must be upholstered.
7. ELECTRICAL
Ignition: Any type is allowed. Delay boxes, two steps, or electronic throttle stops are not allowed.
Charging System: Must be present and working O.E.M. type (no lightening of magnet rotor).
Starting System: Must be electric on board. External jump-starts, push starts, rollers, or external starters are not allowed.
Control Switches: Must be mounted and constructed in a safe, craftsman-like manner. Must have emergency kill switch with tether to rider.
Computer: No data gathering computers are allowed. Shift light is allowed.
Lights: Must have D.O.T. approved headlight, taillight, and brake light present and properly functioning.
8. RIDER
Credentials: Valid AHDRA 9.90 competitor license.
Helmet: Full-coverage (Snell-95 or better) approved helmets only. Eye protection required.
Protective Clothing: Leather jacket, full-finger gloves, and high-top leather shoes or boots are mandatory. Riders exceeding 120 mph must wear full leathers. AHDRA highly recommends reinforcement and/or armor in the knee, elbow, shoulder and knuckle areas. Lightweight leather athletic or driving shoes are NOT recommended. Back/spine protectors are mandatory.
9. TECH
Tech: All motorcycles must be tech approved prior to any runs. Motorcycle, rider, and protective gear must be present at the tech area. The tech official will have final authority on any unclear rules or equipment. Winner and runner-up will be subject to teardown after final round.
