PKRA Racing Classes

The following is a list of the current classes being raced at PKRA.
Note that you will register for the particular class (left-most and bolded), and not the specific engine.  For example Tag100 Senior, Shifter, Kid Kart.  If there are differences in weight, they will be marked on your pre-tech tag in pre-tech.  Classes may be grouped together as needed, but scoring will be done by class.

Our primary rule set is NKA, but Club rules supersede any other rules.  Examples include Tires, Fuel, minimum Weight,  and Ages.  Engine Manufacturer cover the specifics of each engine (Honda, IAME, Vortex, etc.)

PKRA is using Hoosier tires as the required spec tire beginning with the 2020 Summer Season.

POPULAR CLASSES   

These are currently the most popular classes at PKRA and all are eligible for championships except Kid Karts.   To become a championship class, they must average at least 5 entrants per race.  Starting in the summer 2021 season, 5 races will be designated as Shifter Championship races. Shifters may enter other races but will be grouped with TAG.   See the racing schedule for more details.

 Class Age Description Fuel Spec Oil Weight (lbs) Spec Tire
Kid Kart Attn  5
Cmp 8
Birth Certificate required for first race (must be at least 5 years old).  These drivers may receive assistance from corner workers without being DQ’d   Engine: Briggs LO206 Junior with Carb Lock.   555728 0.285 Black slide, Gear: F19:R57, MaxTorque Clutch, 5507 RLV Pipe and others (GX50, Comer, IAME…  email registrar@pkra.com for details)  VP110 N/A 190 Hoosier R60B 4.5
LO206 Junior 1 Attn 7
Cmp13
Engine: Briggs LO206 Junior with Carb Lock Based on Briggs Rules.  Green slide required. No Driver can sign up for both: LO206 Junior 1 and LO206 Junior 1 Novice,  at the same event VP110 N/A 245 Hoosier R70 4.5
LO206 Junior 1 Novice 7 – 13 Intended for beginning drivers racing for metals (no championship points).  These drivers may receive assistance from corner workers without being DQ’d – Engine: JR1 spec VP110 N/A 245 Hoosier R70 4.5
LO206 Junior 2 12-15 Engine: Briggs LO206 Junior, Based on Briggs Rules VP110 N/A 310 Hoosier R70 4.5/6.0
LO206 Senior 16+ Engine: Briggs LO206, Based on Briggs Rules VP110 N/A 360 Hoosier R70 4.5/6.0
LO206 Masters 35+ Engine: Briggs LO206, Based on Briggs Rules VP110 N/A 380 Hoosier R70 4.5/6.0
TAG 100 Junior 2 12-15 Engine: Air Cooled 100cc 2-Cycle Restricted, Air Box Required
IAME KA100, Restricted Per IAME KA100 Rules. 22mm Exhaust
Vortex ROK VLR 100cc Restricted Per ROK Rules. Restricted Exhaust
VP110 Motul Kart GP 2T 320 Hoosier R70
4.5/7.1
TAG 100 Senior 16+ Engine: Air Cooled 100cc 2-Cycle, Air Box Required
IAME KA100,  Per IAME KA100 Rules
Vortex ROK VLR 100cc Per ROK Engine Rules
VP110 Motul Kart GP 2T 360 Hoosier R70
4.5/7.1
Shifter
12+ Any shifter.  Air Box Req’d.  IAME SSE 175cc or KZ 125cc @ 425 lbs, ROK 125cc @ 395 lbs, Honda 125cc @ 385 lbs, Honda Restricted (S5) @ 335 lbs (12 to 14 year olds) Non-
Tech
Non-
Tech
Per Engine Hoosier
4.5/7.1

CLASSES WITH LIMITED RACE PARTICIPATION   

You can participate in club races with karts in any of these classes, but be aware that you may be the only one in that class due to the current lack of popularity.  You will be grouped with similar class(es), but scored separately.

Class                              . Age               . Engine Fuel Spec Oil Weight (lbs) Spec Tire Rule Base
Kid Kart Attn  5
Cmp 8
Other 4 and 2 cycle alternatives.
Birth Certificate Required for first race.
VP110 N/A By
Engine
Hoosier R60B 4.5
GX50 Attn  5
Cmp 8
Honda GX50 VP110 N/A 160 Hoosier R60B 4.5 Per HPD Rules
Gear: F16:R89
Comer C-51 Attn  5
Cmp 8
Comer C-51
VP110 N/A 160 Hoosier R60B 4.5
IAME Kid Kart Attn  5
Cmp 8
IAME
VP110 N/A 160 Hoosier R60B 4.5 Per IAME Bambino M1 Rules.
TAG CADET MICRO 7-10 Mixed engines; Air Box Required VP110 Hoosier R70 4.5
    IAME Micro Swift 7-10 IAME Mini Swift with Micro Header Motul Kart GP 2T 225 Hoosier R70 4.5 Per IAME Mini Swift Rules with Micro Header.
    Rotax Micro Max 7-10 Rotax Micro Hoosier R70 4.5
TAG CADET MINI 9-13 Mixed engines; Air Box Required Hoosier R70 4.5
    IAME Mini Swift 9-13 IAME Mini Swift Motol Kart GP 2T 245 Hoosier R70 4.5 Per IAME Mini Swift Rules.
    Vortex Mini ROK 8-12 Vortex Mini ROK 245 Hoosier R70 4.5 Per Vortex Mini ROK Rules
    Rotax Mini Max 9-12 Rotax Mini Rotax XPS Oil 235 Hoosier R70 4.5
TAG 125 Junior 12-15 Mixed engines; Air Box Required VP110 Motul Kart GP 2T 320 Hoosier R60A 4.5/7.1 Per individual engine manufacturer rules.
    IAME X30 Junior 12-15 X30 + 29mm factory exhaust restr. VP110 Motul Kart GP 2T 320 Hoosier R60A 4.5/7.1 Per IAME X30 Rules with restricted exhaust
    Vortex ROK GP Jr. 12-15 ROK GP with restricted exhaust VP110 Motul Kart GP 2T 320 Hoosier R60A 4.5/7.1 Per Vortex ROK GP Rules with Restricted Exhaust
TAG 125 Senior 16+ Mixed Engines; Air Box Required VP110 Motul Kart
GP 2T
370 Hoosier R60A 4.5/7.1 Per individual engine manufacturer rules.
World Formula Jr. II
Limited **
12-15 Briggs World Formula Jr. VP110 N/A 325 Hoosier R70
4.5/6.0
Per Briggs Except Blue Ignition and Optional Clutch **
World Formula Senior
Limited **
16+ Briggs World Formula VP110 N/A 365 Hoosier R70
4.5/6.0
Per Briggs Except Blue Ignition and Optional Clutch **
World Formula Masters
Limited **
40+ Briggs World Formula VP110 N/A 400 Hoosier R70
4.5/6.0
Per Briggs Except Blue Ignition and Optional Clutch **

** World Formula “Limited” PKRA local classes allow running a Blue Ignition and allow any Drum/Can clutch (as with LO206 rules). All other Briggs World Formula rules are followed.

Minor Age Rules:

  • Drivers that become 8, 12, or 16 during the calendar year (aka competition age), have the option to move to the next higher class at any time during that calendar year (aka option year).
  • Once a driver moves up to the next higher age class in a PKRA club race cannot move back down to a lower age class within Tag or 4-cycle groupings.
  • Parents may pettition to get a waiver to move up early. The process starts by making a request to the board at directors@pkra.com.
  • Kid Karts must not be on the track with any other classes. Junior 1’s may be on the track with Junior 2’s, but no other classes.

Please direct any questions to our Technical director at Tech@pkra.com