The ROK Sonoma Cup is composed of a subset of ROK classes, collectively referred to as the Northern California ROK Cup. The SKC/NCRC is one of the largest local ROK Cup series in the United States and offers racers the ability to participate in the excellent ROK ladder system as well as national and international competition. The RSC is guided by the Sanzaru Karting Championships Supplemental Rules as well as the National and International ROK Cup rulebooks.
2025 Race Schedule
- Round 1: April 4-6
- Round 2: May 2-4
- Round 3: June 27-29
- Round 4: August 8-10
- Round 5: September 12-14
- Round 6: October 3-5
Race Schedule Track Map National Pro
Race Results Championship Points
ROK SONOMA DISCORD INSTRUCTIONS
Event App (Discord)
Discord- What is it?
Discord is a free application available for your phone, PC, and tablet that offers a very high level of immediate communication. Originally, Discord was used primarily for online gaming communication but recently it’s been spreading into many communication needs.
Why do we use it?
When you need information fast, the track PA isn’t very reliable. Discord allows the ROK staff to give you important updates in real time, as well as giving you a consistent place to find information and have a question answered.
How do I get it?
You can find and download Discord on Google Play, or iTunes. For you PC you can download the application at www.discordapp.com
You can also click this link that will start your process automatically, or to find it if you already have Discord on your mobile device.
Registration is a 3 Step process.
Step 1 – Registration Form
Step 2 – Race Shop
Purchase Practice, Practice Tires, Fuel & Oil.
Step 3 – Sign Driver E – Waiver
Passes will be sold at the track.
ROK classes
Registration includes:
1 race entry, 2 pit passes, 1 set of race tires, 1 fuel, 1 oil and Saturday practice
ROK MICRO / ROK MINI $593.00
ROK VLR Classes / ROK SHIFTER Classes $630.00
Registration includes:
1 race entry, 2 pit passes, 1 set of race tires and Saturday practice
Rain tires for all classes: Levanto Wet Rain – Mandatory for Practice and Race
Only Vortex engines are allowed during practice and race days
Dry tires for all classes: Levanto KRT – Mandatory for Practice and Race
Classes
| CLASS | AGE | WEIGHT | ENGINE | WIDTH | KART # | NOTES |
| ROK Micro | 7 to 9 | 245lbs. | Mini ROK | 50in. | 1–99 | Gear Selection 11/82 or 10/75. Chest Protectors MANDATORY |
| ROK Mini | 8 to 12 | 245lbs. | Mini ROK | 50in. | 100–199 | Chest Protectors are MANDATORY for all drivers under 13 years of age. |
| ROK Junior VLR | 12 to 15 | 310lbs | ROK VLR | 55 1/8 in. | 800-899 | Exhaust restrictor. Chest Protectors are MANDATORY for all drivers under 13 years of age. |
| ROK Senior VLR | 15+ | 350lbs | ROK VLR | 55 1/8 in. | 900-999 | |
| ROK Master VLR | 32+ | 380lbs | ROK VLR | 55 1/8 in. | 700-799 | |
| ROK Shifter | 15+ | 395lbs | ROK Shifter | 55 1/8 in. | 400-499 | |
| ROK Master Shifter | 32+ | 410lbs | ROK Shifter | 55 1/8 in. | 500-599 | |
| 125 ROK Shifter Limited | 35+ | 410lbs | ROK Shifter | 55 1/8 in. | 1–99 | Exhaust restrictor |
| 206 Senior | 15+ | 360lbs | Briggs & Stratton | 1–99 |
Rain tires for all classes: Levanto Wet Rain – Mandatory for Practice and Race
Only Vortex engines are allowed during practice and race days
Dry tires for all classes: Levanto KRT – Mandatory for Practice and Race
Prices
| ITEM | PRICE | |
| Practice One Day | $ 75.00 | |
| Practice Two Days | $ 125.00 | |
| Pit Pass | $ 25.00 | |
| Transponder Rental | $ 30.00 | |
| Levanto Tire Set 4.5 | $ 225.00 | |
| Levanto Tire Set 4.5/7.10 | $ 245.00 | |
| Levanto Tire Set 4T | $ 229.00 | |
| Sunoco Race Fuel (5 gals) | $ 105.00 | |
| Eni Oil 2T | $ 34.00 | |
| taxes not included* | ||
For more information please email us at: info@rokcupusa.com
Prizes
ROK Sonoma Triple Crown Prize Package:
- Champion ROK Classes: 2024 Full ROK Vegas Ticket (entry, race tires (2 sets maximum), 1 pail of Sunoco Supreme fuel, 1L Eni oil) *.
- 2nd Place ROK Classes: 2024 ROK Vegas Entry Ticket (less consumables).
- 3rd Place ROK Classes: 2024 or 2025 ROK Wild Card Ticket (complete non-ROK Vegas race entry).
- Champion Briggs Classes: Complete VLR Engine Package (based on 10+ entry average in class)
- 2nd Place Briggs Classes: $100.00 & Two sets of Levanto 4t tires or 2024 or 2025 ROK Wild Card Ticket (complete non-ROK Vegas race entry).
- 3rd Place Briggs Classes: $100.00 & One set of Levanto 4T tires.
*If you have already won a full Vegas ticket, see ROK Cup USA staff for alternate prize choices. (RIO room package most likely)
