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 Kart and Novice classes. To become a championship class, they must average at least 5 entrants per race. See the racing schedule for more details.
| Class | Age | Description | Fuel | Spec Oil | Weight (lbs) | Spec Tire |
|---|---|---|---|---|---|---|
| Kid Kart LO206 |
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 Heavy | 16+ | Engine: Briggs LO206, Based on Briggs Rules | VP110 | N/A | 380 | 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 | 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 GP2T | 320 | Hoosier R70 4.5/7.1 |
| Rotax Junior | 12-15 | Engine: Rotax 125 Junior Max, Air Box Required. Per Rotax Max Challenge Rules – Technical Regulations |
VP110 | ??? | ??? | 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 GP2T | 360 | Hoosier R70 4.5/7.1 |
| Rotax Senior | 16+ | Engine: Rotax 125 Senior Max, Air Box Required. Per Rotax Max Challenge Rules – Technical Regulations |
VP110 | ??? | ??? | 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