The ROK GP engine is the next step in the Vortex engine line, and is used in the Senior and Master classes ROK and Junior ROK Class (with restrictions, see below).
Rok GP immediately conquered the hearts of drivers around the world, for his spirited soul and a practical structure, which aims to achieve high performance, while ensuring high reliability.
The engine has the following features: Single-cylinder 2 stroke engine, displacement 125cc, reed valve intake in the crankcase. Liquid-cooled, equipped with centrifugal dry-clutch and integrated electrical starter. It is also equipped with a balance shaft that reduces vibrations and power valve that improves performance and driveability at low rpm.
The engine comes in two configurations, bare engine or in a complete kit with Dell’Orto VHSH Ø 30mm carburettor, Dell’Orto fuel pump, Arrow intake silencer, moulded exhaust and exhaust with integrated exhaust silencer, wire loom complete with battery and battery support.
True to the philosophy that favours ease of use and management, Rok Gp engine is aimed at all drivers who want to test themselves on a spirited and performing chassis.
Junior ROK engine restrictions: restricted exhaust header. See the ROK Cup USA Rulebook for complete rules and regulations concerning engines for a particular class.
Supplied with:
-
ENGINE KIT Reed valve engine 125cc single-cylinder, liquid-cooled, power valve, electrical starter.
-
ell'Orto CarburettorVHSH Ø30mm
- Dell'Orto fuel pump
- PVL ignition with limiter at 15.000rpm
- Intake silencer
- Exhaust
- Complete cooling system (complete radiator / water pump with pulley)
- Wire loom with battery support
-
Battery
*Does NOT come with engine mount. We recommend (and sell) the Odenthal EZ-Set 0 degree mount
Technical Specifications
-
Class: 125cc - Stock Shifter Class TaG
-
Description: Single Cylinder – 2 stroke
-
Bore: 54 mm
-
Stroke: 54.40 mm
-
Displacement: 125 cc
-
Inlet System: Reed valve
-
Lubrication: 4% to 6% oil mixture
-
Ignition System: PVL digital ignition
-
Cooling System: Water cooled
-
Balancer Shaft: Present
-
Power Valve: Present
-
Starter: On board electric starter
-
Carb. Model: Dell’Orto VHSH Ø 30mm carburettor
-
Dry Weight: 54 lbs
-
Max Power: 36 HP at 12.500
-
Max Torque: 20.2 Nm at 11.500 rpm
-
Max RPM Limit: 15.000 rpm (electronically limited)
ROK GP Documentation
{"id":8335590129942,"title":"Vortex GP 126cc TaG Complete Engine Package","handle":"vortex-gp-126cc-tag-complete-engine-package","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eThe ROK GP engine\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eis the next step in the Vortex engine line, and is used in the Senior and Master classes ROK and Junior ROK Class (with restrictions, see below).\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eRok GP immediately conquered the hearts of drivers around the world, for his spirited soul and a practical structure, which aims to achieve high performance, while ensuring high reliability.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe engine has the following features: Single-cylinder 2 stroke engine, \u003cstrong data-mce-fragment=\"1\"\u003edisplacement 125cc\u003c\/strong\u003e, reed valve intake in the crankcase. \u003cstrong data-mce-fragment=\"1\"\u003eLiquid-cooled\u003c\/strong\u003e, equipped with centrifugal dry-clutch and \u003cstrong data-mce-fragment=\"1\"\u003eintegrated electrical starter\u003c\/strong\u003e. It is also equipped with a balance shaft that reduces vibrations and \u003cstrong data-mce-fragment=\"1\"\u003epower valve \u003c\/strong\u003ethat improves performance and driveability at low rpm.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe engine comes in two configurations, bare engine or in a complete kit with\u003cstrong data-mce-fragment=\"1\"\u003e Dell’Orto VHSH Ø 30mm carburettor\u003c\/strong\u003e, Dell’Orto fuel pump, Arrow intake silencer, \u003cstrong data-mce-fragment=\"1\"\u003emoulded exhaust and exhaust with integrated exhaust silencer\u003c\/strong\u003e, wire loom complete with battery and battery support.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTrue to the philosophy that favours ease of use and management, \u003cstrong data-mce-fragment=\"1\"\u003eRok Gp engine is aimed at all drivers who want to test themselves on a spirited and performing chassis\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eJunior ROK engine restrictions:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003erestricted exhaust header. See the\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/03\/Rule-Book-2017.1.pdf\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/03\/Rule-Book-2017.1.pdf\" target=\"_blank\"\u003eROK Cup USA Rulebook\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003efor complete rules and regulations concerning engines for a particular class.\u003c\/p\u003e\n\u003cp class=\"h2\"\u003eSupplied with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan dir=\"ltr\"\u003eENGINE KIT Reed valve engine 125cc single\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003e-\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003ecylinder, liquid\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003e-\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003ecooled, power valve,\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003eelectrical starter.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan dir=\"ltr\"\u003eell'Orto Carburettor\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003eVHSH Ø30mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eDell'Orto fuel pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003ePVL ignition with limiter at 15.000rpm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eIntake silencer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eExhaust\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eComplete cooling system (complete radiator \/ water pump with pulley)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eWire loom with battery support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan dir=\"ltr\"\u003eBattery\u003c\/span\u003e\u003cbr\u003e\u003cem\u003e*Does NOT come with engine mount. We recommend (and sell) the Odenthal EZ-Set 0 degree mount\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp class=\"h2\"\u003eTechnical Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e: 125cc - Stock Shifter Class TaG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription\u003c\/strong\u003e: Single Cylinder – 2 stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore\u003c\/strong\u003e: 54 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke\u003c\/strong\u003e: 54.40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement\u003c\/strong\u003e: 125 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet System\u003c\/strong\u003e: Reed valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication\u003c\/strong\u003e: 4% to 6% oil mixture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System\u003c\/strong\u003e: PVL digital ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling System\u003c\/strong\u003e: Water cooled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalancer Shaft\u003c\/strong\u003e: Present\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Valve\u003c\/strong\u003e: Present\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter\u003c\/strong\u003e: On board electric starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarb. Model\u003c\/strong\u003e: Dell’Orto VHSH Ø 30mm carburettor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Weight\u003c\/strong\u003e: 54 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Power\u003c\/strong\u003e: 36 HP at 12.500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Torque\u003c\/strong\u003e: 20.2 Nm at 11.500 rpm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax RPM Limit\u003c\/strong\u003e: 15.000 rpm (electronically limited)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp class=\"h2\"\u003eROK GP Documentation\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/03\/Rok-GP-2017-USA-014.pdf\" target=\"_blank\"\u003eTech Sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/02\/gp-seals.pdf\" target=\"_blank\"\u003eEngine Seal Diagram\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/03\/Rok-Gp-Owners-Manual-ilovepdf-compressed.pdf\" target=\"_blank\"\u003eROK GP Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e","published_at":"2023-06-20T13:02:54-07:00","created_at":"2023-06-20T13:02:54-07:00","vendor":"Vortex","type":"Engine","tags":[],"price":323260,"price_min":323260,"price_max":323260,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":45010074272022,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"Vortex GP 126cc TaG Complete Engine Package","public_title":null,"options":["Default Title"],"price":323260,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.wordracing.com\/cdn\/shop\/files\/ROK-GP-TaG.jpg?v=1687291375"],"featured_image":"\/\/www.wordracing.com\/cdn\/shop\/files\/ROK-GP-TaG.jpg?v=1687291375","options":["Title"],"media":[{"alt":null,"id":33916934226198,"position":1,"preview_image":{"aspect_ratio":1.071,"height":280,"width":300,"src":"\/\/www.wordracing.com\/cdn\/shop\/files\/ROK-GP-TaG.jpg?v=1687291375"},"aspect_ratio":1.071,"height":280,"media_type":"image","src":"\/\/www.wordracing.com\/cdn\/shop\/files\/ROK-GP-TaG.jpg?v=1687291375","width":300}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eThe ROK GP engine\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eis the next step in the Vortex engine line, and is used in the Senior and Master classes ROK and Junior ROK Class (with restrictions, see below).\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eRok GP immediately conquered the hearts of drivers around the world, for his spirited soul and a practical structure, which aims to achieve high performance, while ensuring high reliability.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe engine has the following features: Single-cylinder 2 stroke engine, \u003cstrong data-mce-fragment=\"1\"\u003edisplacement 125cc\u003c\/strong\u003e, reed valve intake in the crankcase. \u003cstrong data-mce-fragment=\"1\"\u003eLiquid-cooled\u003c\/strong\u003e, equipped with centrifugal dry-clutch and \u003cstrong data-mce-fragment=\"1\"\u003eintegrated electrical starter\u003c\/strong\u003e. It is also equipped with a balance shaft that reduces vibrations and \u003cstrong data-mce-fragment=\"1\"\u003epower valve \u003c\/strong\u003ethat improves performance and driveability at low rpm.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe engine comes in two configurations, bare engine or in a complete kit with\u003cstrong data-mce-fragment=\"1\"\u003e Dell’Orto VHSH Ø 30mm carburettor\u003c\/strong\u003e, Dell’Orto fuel pump, Arrow intake silencer, \u003cstrong data-mce-fragment=\"1\"\u003emoulded exhaust and exhaust with integrated exhaust silencer\u003c\/strong\u003e, wire loom complete with battery and battery support.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTrue to the philosophy that favours ease of use and management, \u003cstrong data-mce-fragment=\"1\"\u003eRok Gp engine is aimed at all drivers who want to test themselves on a spirited and performing chassis\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eJunior ROK engine restrictions:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003erestricted exhaust header. See the\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/03\/Rule-Book-2017.1.pdf\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/03\/Rule-Book-2017.1.pdf\" target=\"_blank\"\u003eROK Cup USA Rulebook\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003efor complete rules and regulations concerning engines for a particular class.\u003c\/p\u003e\n\u003cp class=\"h2\"\u003eSupplied with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan dir=\"ltr\"\u003eENGINE KIT Reed valve engine 125cc single\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003e-\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003ecylinder, liquid\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003e-\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003ecooled, power valve,\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003eelectrical starter.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan dir=\"ltr\"\u003eell'Orto Carburettor\u003c\/span\u003e\u003cspan dir=\"ltr\"\u003eVHSH Ø30mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eDell'Orto fuel pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003ePVL ignition with limiter at 15.000rpm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eIntake silencer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eExhaust\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eComplete cooling system (complete radiator \/ water pump with pulley)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan dir=\"ltr\"\u003eWire loom with battery support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan dir=\"ltr\"\u003eBattery\u003c\/span\u003e\u003cbr\u003e\u003cem\u003e*Does NOT come with engine mount. We recommend (and sell) the Odenthal EZ-Set 0 degree mount\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp class=\"h2\"\u003eTechnical Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e: 125cc - Stock Shifter Class TaG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription\u003c\/strong\u003e: Single Cylinder – 2 stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore\u003c\/strong\u003e: 54 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke\u003c\/strong\u003e: 54.40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement\u003c\/strong\u003e: 125 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet System\u003c\/strong\u003e: Reed valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication\u003c\/strong\u003e: 4% to 6% oil mixture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System\u003c\/strong\u003e: PVL digital ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling System\u003c\/strong\u003e: Water cooled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalancer Shaft\u003c\/strong\u003e: Present\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Valve\u003c\/strong\u003e: Present\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter\u003c\/strong\u003e: On board electric starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarb. Model\u003c\/strong\u003e: Dell’Orto VHSH Ø 30mm carburettor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Weight\u003c\/strong\u003e: 54 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Power\u003c\/strong\u003e: 36 HP at 12.500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Torque\u003c\/strong\u003e: 20.2 Nm at 11.500 rpm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax RPM Limit\u003c\/strong\u003e: 15.000 rpm (electronically limited)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp class=\"h2\"\u003eROK GP Documentation\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/03\/Rok-GP-2017-USA-014.pdf\" target=\"_blank\"\u003eTech Sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/02\/gp-seals.pdf\" target=\"_blank\"\u003eEngine Seal Diagram\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rokcupusa.com\/wp-content\/uploads\/2016\/03\/Rok-Gp-Owners-Manual-ilovepdf-compressed.pdf\" target=\"_blank\"\u003eROK GP Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e"}