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SuperbikeMag.com Trophy 2025

Rider & Motorcycle Eligibility

🏁 Technical Regulations for the “Modify” Class

The technical regulations for race vehicles in the “Modify” class are based on original factory engine specifications (OEM) with specific restrictions in place to prevent unauthorized changes to engine type or structural modifications that violate competition rules.
 
Modifications are allowed under the condition that the core engine structure must remain unchanged, specifically:
 
  • Engine Block / Crankcase
    → Must be the original factory engine from the same model as the registered race bike.
  • Number of Cylinders & Configuration
    → For example, if the production model uses an inline 4-cylinder, this layout must be maintained.
  • Crankshaft Position
    → Modifying or relocating the crankshaft to change engine characteristics is prohibited.
Definition of “Modify”
“Modify” refers to the freedom granted to competitors to alter, replace, or adapt internal engine components while maintaining the OEM structural foundation. There are no performance limits, provided the engine originates from a manufacturer-approved motorcycle model that is used in the actual race.
 
Permitted Modifications (with conditions)
  • Camshaft
    → Camshaft angle, lift, or design may be changed without restriction.
  • ECU / Fuel System
    → Use of standalone ECUs, piggyback units, fuel injectors, fuel pumps, and other components is allowed freely.
  • Exhaust System
    → No restrictions on materials (e.g. titanium, carbon, stainless steel), design, or throttle body size.
  • Quickshifter / Launch Control
    → Installation and use are permitted.
  • Cylinder Head
    → Aftermarket heads are allowed if they match the original engine mount positions.
    → No limits on valve size, number, material, porting, or camshaft configuration.
  • Cylinder Block
    → May be modified or replaced, but must be mounted to the original engine case mounting points without changing the structural layout.
  • Crankshaft
    → Custom or lightweight crankshafts are allowed if designed for the specific model.
  • Clutch System
    → Upgraded clutches and slipper clutches are permitted.
  • Stroke / Bore
    → May be modified to increase or decrease engine displacement (cc) based on race strategy.
Prohibited Items (Even if Modification Is Permitted)
    • The engine used must come from a mass-produced OEM motorcycle, registered and approved for the race class.
    • The original crankcase may be welded or have cylinder stud height adjusted (e.g., to fit a new piston), but stud positions must not be moved, widened, or increased in number.
      Also, cylinder heads/blocks from other models with incompatible stud patterns are prohibited.
    • Use of CNC-machined engine cases is not allowed, even if identical in size and shape, if not produced by the original vehicle manufacturer (OEM).
    • The oil catch tray must fully enclose the engine and be able to hold at least 1.5 liters of oil.

  • The use of supercharger or turbocharger systems is not allowed, except for air box pressurization systems.

  • The installation of nitrous oxide injection systems (Nitrous Oxide/NOS) is strictly prohibited.

  • Conversion of the main drivetrain to electric power or hybrid electric systems is not permitted.
    (Only one battery is allowed, and it must not exceed 14AH in capacity.)

🏁 FUCHS Silkolene Superbike 1000cc

  • Rider Eligibility:
    🚫 Riders who have previously been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within a period of 5 years from the year they competed in those classes, are not allowed to participate.

    Motorcycle Eligibility:
    🏍️ Superbike with engine capacity from 800cc to 1200cc such as:

    • Yamaha R1/R1M

    • Kawasaki Ninja ZX-10R / ZX-10RR

    • BMW S1000RR / M1000RR

    • Honda CBR1000RR-R Fireblade SP / M1000RR

    • Suzuki GSX-R1000 / GSX-R1000R

    • Aprilia RSV4 / RSV4 Factory

    • DUCATI Panigale V4 / V4 S / V4 R

    📦 Must be a production model available on the market
    🔧 “Modifications” are allowed under the condition that the core structure remains “unchanged” (Refer to technical regulations under the “Modify” class rules)

🏁 SuperSport 600cc.

  • Rider Eligibility:
    🚫 Riders who have previously been champions in the Thailand Championship (top level) in the following classes:
    SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1),
    within 5 years from the year they competed in those classes, are not allowed to compete in this category.

    Motorcycle Eligibility:
    SuperSport motorcycles with engine capacities ranging from 500cc to 600cc, such as

    • Yamaha R6,

    • Honda CBR600RR,

    • Suzuki GSX-R600, and

    • Kawasaki ZX6, are eligible.

    • Yamaha R7 is also permitted to compete in this category.

    • The motorcycle must be a production model available on the market.

    • Modifications are allowed under the condition that the main structure must remain original.

🏁 Honda Mini Bike Trophy 125cc (No CashCard Awards)

  • Rider Eligibility:
    🚫 Riders who have participated in national or semi-pro events such as R2M, BRIC, Thailand Championship, or any other race series are not allowed.
    🎯 This class is intended to help beginner riders learn and develop their skills in a real racing environment.

    Document Requirements:

    • Engine number must match the registration book

    • Rider’s name must match the registered owner without exception

    Motorcycle Eligibility:
    🏍️ Only Honda models: Monkey, CT125, DAX, C125
    📦 Must be a production model available on the market

    🚫 Modifications Not Allowed (Even If Modification Is Generally Permitted):

    • Crankcase: Must be original factory crankcase; CNC crankcases or any welding/modification are prohibited

    • Cylinder Studs: Changing length, position, or adding new studs is prohibited; using cylinder heads from different models is not allowed

    • Matching Components: Cylinder and head must match the motorcycle model

    📌 Other modifications must follow the “unchanged core structure” rule (Refer to technical regulations under the “Modify” class rules)

🏁 SuperMoto 450cc.

  • Rider Eligibility:
    ✅ No restriction on rider credentials

    Motorcycle Eligibility:
    🏍️ 2-Stroke or 4-Stroke engine with 450cc displacement
    📦 Must be a production model available on the market
    🔧 “Modifications” allowed under core structure rule (Refer to technical regulations under the “Modify” class rules)

The accumulated points from the previous rounds in the SuperMoto 450cc. A/B class for each rider will be carried over to the new class as designated by the organizer. This is to ensure the continuity of the competition and fairness in the overall season standings.

🏁  SuperMoto 300cc

  • Rider Eligibility:
    🚫 Riders who have been national champions in the past 5 years are not eligible

    Motorcycle Eligibility:
    🏍️ 2-Stroke or 4-Stroke engine up to 300cc
    📦 Must be a production model
    🔧 “Modifications” allowed under core structure rule (Refer to technical regulations under the “Modify” class rules)

The accumulated points from the previous rounds in the SuperMoto 300cc. A/B class for each rider will be carried over to the new class as designated by the organizer. This is to ensure the continuity of the competition and fairness in the overall season standings.

🏁 SuperSport 400cc – Class B (Lap limit 1.17)

  • Rider Eligibility:
    🚫 Riders who have previously been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within a period of 5 years from the year they competed in those classes, are not allowed to compete.

    Motorcycle Eligibility:
    🏍️ 4-Stroke, DOHC engine up to 400cc
    📦 Production model only
    🔧 “Modifications” allowed under core structure rule (Refer to technical regulations under the “Modify” class rules)

🏁 Sportbike 200cc. 4T- Class A

  • Rider Eligibility:
    🚫 Riders who have previously been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within 5 years from the year they competed in those classes, are not allowed to compete.

    Motorcycle Eligibility:
    🏍️ 150cc–200cc Sportbike such as:

    • Yamaha R15

    • HONDA CBR150R

    • KTM RC200

    • SUZUKI GSX-R150

    • GPX Demon GR200R

    📦 Must be a production model
    🔧 “Modifications” allowed under core structure rule (Refer to technical regulations under the “Modify” class rules)

🏁 SuperBike 1000cc. Rookie (Lap limit 1.14)

  • Rider Eligibility:
    🚫 Riders who have been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within 5 years from the year they competed in those classes, are not allowed to compete.

    Motorcycle Eligibility:
    🏍️ Same as in Class 1 (800cc–1200cc Superbikes)
    📦 Production model
    🔧 Modifications per core structure rule (Refer to technical regulations under the “Modify” class rules)

🏁 Mini Bike 150cc

  • Rider Eligibility:
    🚫 Riders who have been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within a period of 5 years from the year they competed in those classes, are not allowed to compete.

    Motorcycle Eligibility:
    🏍️ Engine capacity not exceeding 150cc
    📦 Must be a production model available on the market
    🔘 Wheel size must be 12 inches only
    🔧 “Modifications” are allowed under the condition that the core structure remains “unchanged” (Refer to technical regulations under the “Modify” class rules)

🏁 Scooter 200cc

  • Rider Eligibility:
    🚫 Riders who have been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within a period of 5 years from the year they competed in those classes, are not allowed to compete.

    Motorcycle Eligibility:
    🏍️ Engine capacity not exceeding 200cc
    📦 Must be a production model available on the market
    🔧 “Modifications” are allowed under the condition that the core structure remains “unchanged” (Refer to technical regulations under the “Modify” class rules)

🏁 SuperSport 400cc. – Class A

  • Rider Eligibility:
    🚫 Riders who have been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within a period of 5 years from the year they competed in those classes, are not allowed to compete.

    Motorcycle Eligibility:
    🏍️ SuperSport bikes with engine capacity not exceeding 400cc, such as:

    • Kawasaki Ninja 400

    • Yamaha YZF-R3

    • KTM RC 390 R

    📦 Must be a production model available on the market
    🔧 “Modifications” are allowed under the condition that the core structure remains “unchanged” (Refer to technical regulations under the “Modify” class rules)

🏁 Scooter 400cc. (Open)

  • Rider Eligibility:
    🚫 Riders who have previously been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within 5 years from the year they competed in those classes, are prohibited from competing.

    Motorcycle Eligibility:
    🏍️ Scooters with engine capacity between 300cc and 400cc, such as:

    • Yamaha XMAX 300

    • Honda Forza 300/350, ADV350

    • Vespa GTS 300

    • Zontes 350E / 350D / 368G / 368K

    • BMW C 400

    🔧 Full modifications allowed

🏁 Sportbike 200cc. 4T – Class B (Lap limit 1.25)

  • Rider Eligibility:
    🚫 Riders who have been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within 5 years from the year they competed in those classes, are prohibited from competing.

    Motorcycle Eligibility:
    🏍️ Sportbike with engine capacity between 150cc and 200cc, same as in Class A (Section 7)
    📦 Must be a production model available on the market
    🔧 “Modifications” are allowed under the condition that the core structure remains “unchanged” (Refer to technical regulations under the “Modify” class rules)

🏁 Naked Bike – Class A

  • Rider Eligibility:
    🚫 Riders who have been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1) within 5 years from the year they competed in those classes are prohibited from competing.

    Motorcycle Eligibility:
    🏍️ Naked Bike with engine capacity not exceeding 1200cc, such as:

    • Yamaha MT03, MT-07, MT-09 / MT-09 SP

    • Kawasaki ER6N, Z900, Z650

    • Honda CB500X, CB500F, CB750 Hornet, CB650R

    • Triumph Street Triple 765 R / RS / RR / 1,200

    • Ducati Monster 937, Streetfighter V2 / V4 / V4 S

    • BMW F 900 R

    • Suzuki GSX-8S

    • Aprilia Tuono 660

    • KTM 790 Duke / 890 Duke R

    📦 Must be a production model available on the market
    🔧 “Modifications” are allowed under the condition that the core structure remains “unchanged” (Refer to technical regulations under the “Modify” class rules)

🏁 Naked Bike – Class B (Lap limit: 1.17)

  • Rider Eligibility:
    🚫 Riders who have been champions in the Thailand Championship (top level) in the following classes: SB1: SuperBike 1000cc / ST1: SuperStock 1000cc / 600SS1: Supersport 600cc (SS1) / 400SS1: Supersport 400cc (SS1), within 5 years from the year they competed in those classes, are prohibited from competing.
    Classes:

    • SB1: SuperBike 1000cc

    • ST1: SuperStock 1000cc

    • 600SS1: Supersport 600cc (SS1)

    • 400SS1: Supersport 400cc (SS1)

    within the past 5 years from the year they last competed in those classes are not eligible to compete.

    🏍️ Motorcycle Eligibility:
    🔹 Naked Bikes with engine capacity not exceeding 1200cc, such as:

    • Yamaha MT03, MT-07, MT-09 / MT-09 SP

    • Kawasaki ER6N, Z900, Z650

    • Honda CB500x, CB500F, CB750 Hornet, CB650R

    • Triumph Street Triple 765 R / RS / RR / 1,200

    • Ducati Monster 937 / Streetfighter V2 / V4 / V4 S

    • BMW F 900 R

    • Suzuki GSX-8S

    • Aprilia Tuono 660

    • KTM 790 Duke / 890 Duke R

    📦 The motorcycle must be a production model available in the market
    🔧 Modifications are allowed under the condition that the main structure remains “unchanged” (Refer to technical regulations under the “Modify” class rules)

For the Naked Bike – Class B category, which was introduced starting from Round 2, there will be no overall season champion title (3 rounds), as the category did not have a full 3-round competition in accordance with the event’s criteria.

🏁 Banglom Circuit – OPEN

  • Rider Eligibility
    • ✅ Open to all riders – No restrictions on racing experience.
      Riders of all levels are welcome to participate.
  • Motorcycle Type
    • Category: Modified Underbone / Moped
    • Eligible Models:
      • Honda:
        • Wave 110 / Wave 125 / Wave S / Wave 125i (both old and new generations)
        • Dream 100 / Dream Super Cub / Dream 125
      •  Suzuki:
        • Smash 110 / Smash 115i
      •  Yamaha:
        • Spark 115i / Vega / Crypton (only specific models with compatible chassis)
  • Vehicle Requirements
    • Must be a production model sold in the general market
       
    • Original fairings must be installed
       
    • Must have a clearly visible front wind shield / deflector
  •  ✅ Full modification is allowed
    • Unlimited tuning and customization is permitted, as long as the original style and character of the vehicle is maintained.
       

🏁 Honda Cup

  • Rider Eligibility:
    🏍️ Determined by Honda BigBike

    Motorcycle Eligibility:
    🏍️ Honda motorcycles only

🏁 KTM 390 Series

  • Rider Eligibility:
    ✅ No restrictions on rider credentials

    Motorcycle Eligibility:
    🏍️ Only motorcycles in the KTM 390 Series, including:

    • KTM RC 390

    • KTM Duke 390

🏁 Italjet Dragster 300cc

  • Rider Eligibility
    ✅ No rider classification restrictions
    All levels of riders are eligible to participate.
  • Motorcycle Eligibility
    ✅ Only Italjet scooters, model Dragster 300cc and above

🏁 Triumph ‘Triple Engine Trophy’ 660 – 1200 cc

  • Rider Eligibility
    Determined by Triumph Thailand
    Riders must be approved or selected according to the criteria set by Triumph Thailand.
  • Motorcycle Eligibility
    ✅ Only Triumph motorcycles are allowed, with engine capacity 600cc and above.
    Permitted models:
    • Daytona 660
    • Trident 660
    • Street Triple 765 RS
    • Speed Triple 1200 RS
    • Speed Triple 1200 RR

🏁 KTM 390 Series

  • Rider Eligibility
    Determined by KTM Thailand
    Riders must meet the qualifications set by KTM Thailand.
  • Motorcycle Eligibility
    ✅ Only the following KTM models are eligible to compete:
    • KTM RC 200
    • KTM RC 250
    • KTM RC 390
    • KTM Duke 390
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    • ลงทะเบียนฟรี Honda Bigbike จ่ายให้
    • พร้อมถ้วยรางวัลพิเศษ จาก Honda
  • 27/07/2023  Promotion ลงทะเบียนสำหรับลูกค้าที่ใช้รถYamaha
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      ค่าสมัครแทร็คเดย์ 1,500 บาท
      ค่าสมัครแข่ง 800 บาท
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    • รุ่น CBR500R,CB500F 
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    • สำหรับ Honda ทุกรุ่น
      ราคาสุดพิเศษ
      แทร็คย์ วันเสาร์ 1,500 บาท
      แข่ง วันอาทิตย์ ทุกรุ่น 800 บาท
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