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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.

🏁 FUCHS Silkolene Superbike 1000cc

  • Rider Eligibility
    ❌ Riders who have previously won a national championship title in any of the following top-level classes within the past 5 years are not eligible to compete in this class:
    • SB1: SuperBike 1000cc
    • ST1: SuperStock 1000cc
    • 600SS1: Supersport 600cc
    • 400SS1: Supersport 400cc
    • Anyone who has been a champion in any of these classes must wait at least 5 years from the year they competed before participating in this category.
       
  • Bike Eligibility
    • Category: Superbike with engine capacity between 800cc – 1200cc
    • Examples of eligible models:
      • Yamaha R1 / R1M
      • Kawasaki Ninja ZX-10R / ZX-10RR
      • BMW S1000RR / M1000RR
      • Honda CBR1000RR-R Fireblade SP
      • Suzuki GSX-R1000 / GSX-R1000R
      • Aprilia RSV4 / RSV4 Factory
      • DUCATI Panigale V4 / V4 S / V4 R
         
  • Additional Requirements
    • The motorcycle must be a production model available on the market (Production Model).
    • Modifications are allowed, provided the core structure remains unchanged, according to the regulations outlined in the “Modify” class technical rules.
  • Prohibited Modifications
    • ❌ Turbocharger systems
    • ❌ Supercharger or any forced induction systems
    • ❌ Nitrous Oxide (NOS) systems
    • ❌ Conversion to electric or hybrid-electric drive systems

🏁 SuperSport 600cc.

  • Rider Eligibility
    • ❌ Riders who have previously won a national championship title in any of the following top-tier classes within the past 5 years are not eligible to compete in this category:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Any rider who has been a champion in these classes must wait at least 5 years from the year they last competed before entering this class.
  • Bike Eligibility
    • Category: Supersport with engine displacement between 500cc – 600cc
    • Examples of eligible models:
      • Yamaha R6 
      • Honda CBR600RR
      • Suzuki GSX-R600
  • Requirements
    • The motorcycle must be a production model (commercially available in the market).
    • Modifications (Modify) are allowed, provided that the main structural components remain unchanged, in accordance with the technical regulations of the “Modify” class.
  • Prohibited Modifications
    • ❌ Use of Turbochargers
    • ❌ Use of Superchargers or any form of forced induction
    • ❌ Installation of Nitrous Oxide (NOS) systems
    • ❌ Conversion to electric or hybrid-electric powertrains

🏁 Honda Mini Bike Trophy 125cc

  • Rider Eligibility
    ❌ Riders who have previously won a national championship title in any top-tier class within the past 5 years from the year they last competed in those classes
    • Are not allowed to participate in this category
  • Bike Eligibility
    Only the following Honda models are eligible:
    • Monkey
    • CT125
    • DAX
  • Requirement
    • The motorcycle must be a production model (available for sale to the public).
    • Modifications (Modify) are allowed, but the main structure must remain unchanged, in accordance with the technical regulations for the “Modify” class.
  • Prohibited Modifications
    • ❌ Use of Turbochargers
    • ❌ Use of Superchargers or any other forced induction system
    • ❌ Installation of Nitrous Oxide (NOS)
    • ❌ Conversion to electric or hybrid-electric drivetrain

🏁 SuperMoto 450cc.

  • Rider Eligibility
    • ✅ No rider ranking restrictions Riders of all levels are welcome to compete.
  •  Motorcycle Eligibility
    Engine Types Allowed:
    • 2-Stroke engine, 450cc
    • 4-Stroke engine, 450cc
  • Requirements:
    • Must be a production model motorcycle (available for public sale)
    • Modifications (Modify) are allowed, but the main structure must remain unchanged (See technical rules under the “Modify” class)
  • Prohibited Modifications:
    • ❌ Use of Turbochargers
    • ❌ Use of Superchargers or any forced induction systems
    • ❌ Installation of Nitrous Oxide (NOS)
    • ❌ Conversion to electric or hybrid-electric powertrains

🏁  SuperMoto 300cc

  • Rider Eligibility
    • ❌ Riders who have been champions in any top-tier Thailand national championship class within the past 5 years are not eligible to compete in this category.
  • Motorcycle Eligibility
    Permitted Engine Types:
    • 2-Stroke
    • 4-Stroke
      Displacement: Not exceeding 300cc
  • Requirements:
    • Must be a production model motorcycle (available for sale to the public)
    • Modifications (Modify) are allowed, but the main engine structure must remain unchanged (Refer to technical rules for the “Modify” class)
  • Prohibited Modifications:
    • ❌ Use of Turbochargers
    • ❌ Use of Superchargers or any forced induction systems
    • ❌ Installation of Nitrous Oxide (NOS)
    • ❌ Conversion to electric or hybrid-electric drivetrains
 

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

  • Rider Eligibility
    • ❌ Riders who have previously been champions in the following top-tier Thailand national championship classes within the past 5 years from the year of competition are not eligible to participate:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • If a rider has ever won a championship title in any of these classes, they are not allowed to participate in this category for a period of 5 years from the year they won the title.
  • Motorcycle Eligibility
    Engine type:
    • 4-Stroke, DOHC
    • Engine displacement: Not exceeding 400cc
  • Requirements:
    • The motorcycle must be a production model (available for public sale)
    • Modifications (Modify) are allowed under the condition that the main structure remains original (Refer to technical rules for the “Modify” class)
  • Prohibited Modifications
    • ❌ No Turbochargers
    • ❌ No Superchargers or any other forced induction systems
    • ❌ No Nitrous Oxide (NOS) systems
    • ❌ No conversions to electric or hybrid-electric drivetrains
       

🏁 Sportbike 200cc. 4T- Class A

  • Rider Eligibility
    • ❌ Riders who have previously won a national championship title in the following top-tier Thailand classes within the past 5 years are not eligible to participate:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Any rider who has been a champion in these categories within the last 5 years is prohibited from competing in this class.
    •  Motorcycle Eligibility
      Type:       SportBike
      Engine displacement allowed: 150cc – 200cc
      Example eligible models:
      • Yamaha R15
      • Honda CBR150R
      • KTM RC200
      • Suzuki GSX-R150
      • GPX Demon GR200R
  • Requirements:
    • The motorcycle must be a production model (publicly available in the market)
    • Modifications are allowed, provided that the main structural components remain unchanged (Refer to the technical rules for the “Modify” class)
  • Prohibited Modifications
    • ❌ No Turbochargers
    • ❌ No Superchargers or other forced induction systems
    • ❌ No Nitrous Oxide (NOS) systems
    • ❌ No conversion to electric or hybrid-electric drivetrains

🏁 SuperBike 1000cc. Rookie (Lap limit 1.14)

  • Rider Eligibility
    • ❌ Riders who have previously won a national championship title in the following top-tier Thailand classes within the past 5 years are not eligible to participate:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Any rider who has been a champion in the above categories within the past 5 years is prohibited from competing in this class.
  • Motorcycle Eligibility
    Category:     Superbike
    Permitted engine displacement: 800cc – 1200cc
    Example eligible models:
    • Yamaha R1 / R1M
    • Kawasaki Ninja ZX-10R / ZX-10RR
    • BMW S1000RR / M1000RR
    • Honda CBR1000RR-R Fireblade SP
    • Suzuki GSX-R1000 / GSX-R1000R
    • Aprilia RSV4 / RSV4 Factory
    • Ducati Panigale V4 / V4 S / V4 R
  • Requirements:
    • Motorcycle must be a production model available in the market
    • Modifications are allowed, provided that the main structural components remain unchanged (Refer to technical regulations under the “Modify” class rules)
  •  Prohibited Modifications
    • ❌ No Turbochargers
    • ❌ No Superchargers or other forced induction systems
    • ❌ No Nitrous Oxide (NOS) systems
    • ❌ No conversion to electric or hybrid-electric drivetrains

🏁 Mini Bike 150cc

  • Rider Eligibility
    • ❌ Riders who have previously won a national championship title in any of the following top-tier classes in Thailand within the past 5 years are not eligible to compete:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Any rider who has been a champion in the above classes within 5 years from the year of competition is not allowed to enter this category.
  • Motorcycle Eligibility
    • Engine Capacity: Maximum 150cc
    • Wheel Size: 12″ inches only
  • Requirements:
    • The motorcycle must be a production model (commercially available in the market)
    • Modifications are allowed, provided that the main structure remains unchanged (Refer to the technical rules under the “Modify” class)
  • Prohibited Modifications
    • ❌ No Turbochargers
    • ❌ No Superchargers or any other forced induction systems
    • ❌ No Nitrous Oxide (NOS) systems
    • ❌ No conversion to electric or hybrid-electric drivetrain

🏁 Scooter 200cc

  • Rider Eligibility
    • ❌ Riders who have previously been champions in the national-level championship of the following top-tier classes within the past 5 years are not eligible to participate:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Riders who have won a championship title in any of the above categories are not allowed to compete in this class within 5 years of their victory.
  • Motorcycle Eligibility
    • Engine Type: Internal combustion engines only
    • Displacement Limit: Maximum 200cc
  • Requirements:
    • Must be a production motorcycle (commercially available on the market)
    • Modifications are allowed, provided that the main structure remains original (Refer to the technical regulations for the “Modify” class)
  • Prohibited Modifications
    • ❌ Turbochargers are not allowed
    • ❌ Superchargers or any form of forced induction is prohibited
    • ❌ Nitrous Oxide (NOS) systems are not permitted
    • ❌ No conversion to electric or hybrid-electric drivetrains

🏁 SuperSport 400cc. – Class A

  • Rider Eligibility
    • ❌ Riders who have been champions in the Thailand National Championship (Top Tier) within the past 5 years in the following classes are not eligible to compete:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Any rider who has won a championship in one of the above classes within the past 5 years is not permitted to participate in this category.
  • Motorcycle Eligibility
    • Category: SuperSport
    • Engine Capacity: Up to 400cc
  • Eligible Models (examples):
    • Kawasaki Ninja 400
    • Yamaha YZF-R3
    • KTM RC 390 R
  • Requirements:
    • Must be a production model (commercially available)
    • Modifications are allowed, but the main structure must remain original (Refer to the technical regulations for the “Modify” class)
  •  Prohibited Modifications
    • ❌ Use of Turbochargers is not allowed
    • ❌ Use of Superchargers or any other forced induction system is prohibited
    • ❌ Installation of Nitrous Oxide (NOS) is forbidden
    • ❌ Conversion to electric or hybrid-electric drive systems is not allowed
       

🏁 Scooter 400cc. (Open)

  • Rider Eligibility
    • ❌ Riders who have previously won a championship in the Thailand National Championship (Top Tier) within the past 5 years in any of the following classes are not eligible to compete:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Any rider who was a champion in these classes must wait 5 years from the year of their title before competing in this class.
  • Motorcycle Eligibility
    • Type: Scooter
    • Engine Capacity: 300cc to 400cc
    • Examples of eligible models:
      • Yamaha XMAX 300
      • Honda Forza 300 / 350
      • Honda ADV350
      • Vespa GTS 300
      • Zontes 350E / 350D / 368G / 368K
      • BMW C 400
  • Modifications
    • ✅ Full modification is allowed, but must not violate the restrictions below:
  • Prohibited Modifications
    • ❌ Turbocharger not allowed
    • ❌ Supercharger or any forced induction system is prohibited
    • ❌ Nitrous Oxide (NOS) systems are forbidden
    • ❌ Conversion to electric or hybrid-electric drivetrain is not allowed

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

  • Rider Eligibility
    • ❌ Riders who have previously been champions in the Thailand National Championship (top-tier) within the past 5 years, in any of the following classes, are not eligible to compete:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Riders who were champions in these categories must wait 5 years from the year they won before participating in this class.
  • Motorcycle Eligibility
    • Category: Sportbike
    • Engine Type: 4-Stroke (4T)
    • Engine Displacement Allowed: 150cc – 200cc
    • Examples of eligible models:
      • Yamaha R15
      • Honda CBR150R
      • KTM RC200
      • Suzuki GSX-R150
      • GPX Demon GR200R
  • Requirements:
    • Must be a production model available in the general market
    • Modifications are allowed under the condition that the main structural components remain unchanged
      (Refer to technical rules under the “Modify” class)
  • Prohibited Modifications
    • ❌ No Turbochargers
    • ❌ No Superchargers or any forced induction systems
    • ❌ No Nitrous Oxide (NOS)
    • ❌ No conversion to electric or hybrid-electric drivetrains

🏁 Naked Bike

  • Rider Eligibility
    • ❌ Riders who have previously been champions in the Thailand National Championship (top-tier) within the past 5 years, in any of the following classes, are not allowed to compete:
      • SB1: SuperBike 1000cc
      • ST1: SuperStock 1000cc
      • 600SS1: Supersport 600cc
      • 400SS1: Supersport 400cc
      • Riders who were champions in these categories must wait 5 years from the year they won the championship before they can compete in this class.
  • Motorcycle Eligibility
    • Type: Naked Bike
    • Engine Displacement Allowed: 600cc – 1000cc
    • Examples of eligible models include:
      • Yamaha: MT-07, MT-09, MT-09 SP
      • Kawasaki: Z650, Z900
      • Honda: CB650R
      • Triumph: Street Triple 765 R / RS / RR
      • Ducati: Monster 937, Streetfighter V2 / V4 / V4 S
      • BMW: F 900 R
      • Suzuki: GSX-8S
      • Aprilia: Tuono 660
      • KTM: 790 Duke, 890 Duke R
  • Requirements
    • Must be a production model sold in the general market
    • Modifications are allowed, under the condition that the main structure remains unchanged (Refer to technical regulations for the “Modify” class)
  •  Prohibited Modifications
    • ❌ No Turbochargers
    • ❌ No Superchargers or any form of forced induction
    • ❌ No Nitrous Oxide (NOS)
    • ❌ No conversion to electric or hybrid-electric drivetrains

🏁 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
    ✅ Rider selection is determined by Honda BigBike
    Participation is subject to approval by Honda BigBike.
  • Motorcycle Eligibility
    ✅ Only Honda motorcycles are allowed
    All participating motorcycles must be Honda brand.

🏁 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
  • 29/07/2023   NEW!! สำหรับนักแข่ง ที่มี CBR500R เท่านั้น
    • ลงทะเบียนฟรี Honda Bigbike จ่ายให้
    • พร้อมถ้วยรางวัลพิเศษ จาก Honda
  • 27/07/2023  Promotion ลงทะเบียนสำหรับลูกค้าที่ใช้รถYamaha
    • รุ่น T-max ,R6,R7,R1,MT-07-10
      ค่าสมัครแทร็คเดย์ 1,500 บาท
      ค่าสมัครแข่ง 800 บาท
  • 27/07/2023  Promotion ลงทะเบียนสำหรับลูกค้าที่ใช้รถ Honda
    • รุ่น CBR500R,CB500F 
      ฟรี แทร็คเดย์ สำหรับวันเสาร์
      แข่ง สำหรับรุ่น CBR Trophy
    • สำหรับ Honda ทุกรุ่น
      ราคาสุดพิเศษ
      แทร็คย์ วันเสาร์ 1,500 บาท
      แข่ง วันอาทิตย์ ทุกรุ่น 800 บาท
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