See 2018 IKF rulebook sections as specified for class rules

Laydown Enduro Classes - See Section 302
Tires Weight Age
1 FKE 1 - 100cc Open      
  80/85cc Gearbox Open 370 16+
  100cc Clutch Enduro Open 400 16+
  100cc Clutch Sprint See Sec. 306.3 Open 360 16+
2 FKE 2 - 125/150 Open      
  150cc Open Motors Open 400 16+
  Open/FKE II 125cc Gearbox Motors Open 400 16+
  100cc Open Motors Open 380 16+
  80/85cc Open Gearbox Motors Open 370 16+
  TAG Enduro Open 400 16+
  TAG Enduro, Superstock Bodywork Open 380 16+
  TAG Enduro, CIK Sprint Open 360 16+
  250cc 4 Cycle Open 400 16+
  All FKE1 classes per FKE1 rules      
3 FKE 3 - Unlimited      
  250cc Twin Gearbox Open 475 18+
  250cc Single Cylinder Gearbox Open 450 18+
  KTM 300 Open 450 18+
  2-100cc Open Motors Open 400 18+
  2-150cc Open Motors Open 425 18+
  RZ/RD 350 Yamaha Open 475 18+
  400cc Big Bore Kit Open 465 18+
  4 Stroke engines Single Cylinder/Twin Cylinder 500cc Max Open 460 18+
 

All FKE1 and FKE2 classes per FKE1 and FKE2 rules respecitively

NOTE A: There is a 20 b. weight reduction for the use of a Sprint chassis in specified Enduro (laydown) classes. Top of seat back must be a minimum of 14" above the ground.

*Open Fuel: Only Acetone may be added to facilitate blending of gas and methanol with oil, and only in quantities necessary to achieve blending. Large amounts not permissible. See Special Bodywork Rule 302.11.14

**See Sec. 617.21.

 

Superkart Classes - See Section 304
Tires Weight Age
4 125cc Gearbox Superkart
Engine - Single Cylinder 125cc gearbox, per Sec. 654 and 655
Open 465 16
5 Superkart Intercontinental E
Same as current Class #7 save for the title above
Open 465 18+
6 Superkart Super ICE
Engine - Single Cylinder 250cc gearbox, bore and stroke not to exceed 250cc, otherwise, non-tech per 304.4 including single cylinder 4 stroke 450cc
Open 465 18+
7 Superkart Formula E (FE TWIN)
Engine - twin cylinder 250cc gearbox per sec. 304.5 including twin cylinder 4 stroke 450cc
Open 465 18+
 
Sprint Classes - See Section 306
Tires Weight Age
8 Super Stock CR125 (99 cylinder only)
Same as previous class 19 save new title as above
Open 400 16+
9 Super Stock CR125 (SKUSA Engine Spec - 99-02 cyliner)
Same as previous class 17 save new title as above
Open 385 16+
10 Formula 125
Same as previous class 16
Open 385 16+
11 Yamaha Limited
Same as previous class 9
Open 360 16+
12 TAG Heavy
Same as previous class 12
Open 400/415 16+
13 World Formula
Same as previous class 22
Open 390 16+
14 Formula 80 Senior
Same as previous class 18
Open 380 16+
15 Junior TAG
Same as current class Tag Junior in 850.3
Engine: Per OEM specifications published on IKF website, and manufacturers fische - Junior 2 restrictions required - all versions allowed in Road Race division
Open 330 13-15
16 Junior 4 Cycle      
  Briggs LO206 Open 310 13-15
  Briggs World Formula Open 330 13-15
 
Local Option Shifter and TAG Classes
Tires Weight Age
27 Sprint Stock CR125
Chassis - Secs 306.9.3, CIK Driver Fairing and 307.4.3
Engine - 99-02 cylinder CR125 - Per Sec. 657
MG Yellow 385 16+
31 Rotax Max DD2
Chassis - Sec. 306 and 307
Engine - Per USRMC Rules
Open 400 16+
 
Local Option Open Classes
Tires Weight Age
43 Run What Ya Brung
Chassis - Refer to Sections 302, 303, 304, 305 and 306.Chassis and bodywork must conform to competition and safety rules that apply to chosen kart design
Engine - 650cc maximum, 2 cylinder maximum, 2 or 4 stroke
Open Open 16+
 
Local Option 4-cycle Classes
Tires Weight Age
56 4 Stroke Open Heavy
Chassis - Sec. 306 and 307No front brakes.
Engine - IKF Legal B&S Flat Heads, Animals, WF, Outlaw, Clone, F200, LO206
Open 390 16+
 
Local Option Junior Classes
Tires Weight Age
60 Junior 100cc
Sprint Chassis - Sec. 306 and 307 No front brakes.
Yamaha Junior Sprint Engine - Sec. 617. Exhaust as per sec. 623.7.13 (RLV SSX Can - Any hole configuration) or RLV 2 #7402, connector tube must be between 9.375" and 9.875"
KPV2 / HPV2 Engine - Sec 620.50
Formula 80 Jr Engine - Sec 653
Tag Jr Engine - Sec 675
Enduro Chassis - Sec. 301
Open 320 13-15
 
Local Option Electric Kart
Tires Weight Age
70 Electric Kart
Sprint Chassis - Sec. 306 and 307
Engine - Per manufacturer's Specifications - 40KW Maximum
Open TBA TBA

Event Registration

Registration for the November 24th Sonoma event is now open.  It closes on Wednesday, Nov 24th at 8:30pm Pacific time.

Need Help? See our Step By Step Tutorial.

2018 Schedule

  • Nov 25, '17 - Sonoma Raceway
  • Mar 24-25 - Laguna Seca
  • June 30 - Thunderhill West
  • Aug 27 - Thunderhill (Monday)
  • Oct 22 - Thunderhill (Monday)
  • Nov 24 - Sonoma (2019 Race 1)

It's All About the Tracks

Northern California Karters Club uses and accesses some of the best racetracks in California. While the name Northern reflects the original location at the time of the club establishment 10+ years ago. The fact is that our series uses tracks based all over our great state.