
WILLOW SPRINGS SUPERBIKE SHOWDOWN
WILLOW SPRINGS INTERNATIONAL RACEWAY
OCTOBER 4-5, 2025
SATURDAY
SCHEDULE
630am: Willow Gate Opens
700am: Registration / Tech Open
730am: Riders Meeting
800am - 200pm: Practice & Race School
Noon: Lunch / Taste of the Track
230pm: Iron Man Race
300pm: Sidecar Race
345pm: New Racer School Mock Race
400pm: Awards Ceremony
500pm - 700pm: Registration / Tech

SUNDAY
SCHEDULE
630am: Willow Gate Opens
700am: Registration / Tech Open
730am: Riders Meeting
1000am: Racing Begins
Noon: Lunch / Taste of the Track
400pm: Racing Ends
5pm: WSSS Awards Ceremony


WILLOW SPRINGS SUPERBIKE SHOWDOWN
ROAD RACING FEES
SATURDAY
$250 Per Rider
Practice + Ironman Race
$200 Per Team
Practice + Sidecar Race
$200 Track Day ONLY
$250 Per Rider
New Racer School
SUNDAY
$150 / Rider / Class
$100 / Additional Class
SAT & SUN
$500 All Inclusive Weekend
Practice & Ironman - SAT
Mexican Dinner - SAT
Every Race Your Bike Qualifies For - SUN
GATE FEE
$25/One Day - $40/Two Days
Per Person When Entering Willow Property
FREE OVERNIGHT CAMPING

THANK YOU TO OUR SUPPORTERS!
.png)
LOOKING FOR A GOOD NIGHT'S REST BEFORE HITTING THE TRACK?
STAY WITH OUR PREFERRED HOTEL PARTNER, WYNDHAM GARDEN LANCASTER!
CLICK ON THE PHOTO BELOW TO GAIN ACCESS TO 20% OFF REGULAR ROOM RATES

Presented By

WILLOW SPRINGS SUPERBIKE SHOWDOWN
PERFORMANCE BIKE SHOW
Presented by Classic British Spares
FREE TO ENTER!
SATURDAY OCT 4TH
Setup: 9AM Awards: 1PM
CLASSES
Vintage Road Racer
Modern Road Racer
Off-road
Flat Tracker
Track Bike
Street - Superbike
Street - Café
Street - American Performance

MOTORCYCLE SWAP MEET ALL WEEKEND!
Free Swap Space With Paid Gate Entry



WILLOW SPRINGS SUPERBIKE SHOWDOWN
RACE CLASSES
IRONMAN
Open to all sizes and years. Race prepped bikes capable of sustaining race pace for 20 laps (50 miles)
ULTRALIGHT: Up to 125cc two stroke / 250cc four stroke
LIGHT: Up to 250cc two stroke / 500cc four stroke
MIDDLE: Up to 650cc
HEAVY: Unlimited
300 SUPERSPORT
Up to 300cc 4 Cylinder/4 Stroke or 450cc Twin
400 SUPERSPORT
Up to 400cc 4 Cylinder/4 Stroke or 650cc Twin
600 SUPERSPORT
Lightly modified "production models" (up to 650cc max (4 cylinders), 675cc max (3 cylinders), 900cc max (Twin)), on stock platforms, with exception to suspension components, exhaust, tires, gearing, etc.. NO internal engine modifications. (R6's, GSX-R, CBR, ZX-Ninja, Daytona 675)
1000 SUPERSPORT
Lightly modified "production models" (up to 1000cc max (4 cylinders), 1200cc max (Twin)) on stock platform, with exception to suspension components, exhaust, tires, gearing, etc. NO internal engine modifications. (R1's, GSX-R, CBR, ZX-Ninja, S1000RR, Panigale V4, RSV4)
FORMULA 40 – RIDER AGE 40+
LIGHT: Lightweight Twins & 400 Modern rules apply
MIDDLE: 600 Superbike rules apply
HEAVY: 1000 Superbike rules apply
600 SUPERBIKE
Highly modified "production models" with displacement ranges determined by 600 Supersport.
1000 SUPERBIKE
Highly modified "production models" with displacement ranges determined by 1000 Supersport.
SUPER SINGLES – SINGLE CYLINDER – ANY YEAR
LIGHT: Up to 390cc Four Stroke
(RC390, Honda NSF250, Honda RS125)
MIDDLE: Up to 500cc Four Stroke
(All 450cc MX Based Supermonos and Supermotos)
HEAVY: Unlimited
(690cc KTM and Kramer, Husky 701)
POWER TWINS – TWIN CYLINDER – ANY YEAR
LIGHT: Up to 400cc Four Stroke
(R3, Ninja 400)
MIDDLE: Up to 900cc Air-Cooled and 660cc Liquid Cooled
(RS660, SV650, Hawk 650, R7, MT-7, Ducati Air-Cooled up to 900cc, H-D XR1200, 2 Stroke GP up to 250cc)
HEAVY: Unlimited Air and Liquid-Cooled
(All Ducati Liquid-Cooled Twins, RC51, All Aprilia Twins, All Suzuki Twins, BMW R9T)
VINTAGE - PRE 1973 AIR-COOLED, DRUM BRAKE MACHINES
LIGHT: Up to 250cc
(CB160, Dt175)
MIDDLE: Up to 500cc
(CB350, Aermacchi 350)
HEAVY: Unlimited
(Norton 750, Triumph 650)
CLASSIC 80s - PRE 1983 AIR-COOLED MACHINES WITH ANY PERFORMANCE ENHANCEMENTS
LIGHT: Up to 500cc Four Stroke, 300cc Two Stroke
(CB360, SR500, FT500)
MIDDLE: Up to 650cc Four Stroke, 400cc Two Stroke
(Seca 500, CB400/500/550/650, KZ550, GS650, Alazurra 650cc, RD/RZ350, 650 Motoguzzi & BMW 650)
HEAVY: Unlimited
(KZ1000, GS1000, CB1100, CB900, XV950)
SUPER CLASSIC - ALL BIKES UP TO 2001 FOUR & TWO STROKE MACHINES
LIGHT: Up to 250cc Four Stroke, 125cc Two Stroke
(VTR250, Ninja 250, NSR250, RGV, TZR)
MIDDLE: Up to 600cc Four Stroke, 350cc Two Stroke
(CBR600, ZX600, YZF600, GSXR600, Ducati 748)
HEAVY: Unlimited Four Stroke & Two Stroke
(Early R1, GSXR1000, RC51, Ducati 916/996, Aprilia Mille)
HW TWINS / AMERICAN IRON - ANY AMERICAN TWIN / UNLIMITED
SIDECARS - DETERMINED BY SRA WEST
RACE ELIGIBILITY
A RACE LICENSE IS MANDATORY FOR ALL RACERS
Classic Enterprises LLC offers Road Race License reciprocity from most race organizations, private coaches and clubs across the United States of America and from around the world including but not limited to:
Chuckwalla Valley Raceway/CVMA: www.CVMARacing.com
American Federation of Motorcyclists: www.afmracing.org
CCS: www.ccsracing.us
AHRMA: www.ahrma.org
Pacific Track Time: www.pacifictracktime.com
CRA: www.RaceCRA.org
U.S. Motorcycle Coaching Association: www.usmca.org
WERA: www.wera.com
YOUR BIKE MUST BE FULLY PREPPED FOR ROAD RACING
Tech Check List Can Be Found Here: TECH CHECK LIST
