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 -Spec125, Kidkart – Other. If there are differences in weight, they will be marked on your pre-tech tag in pre-tech.
Our primary rule set is that of the sanctioning body, 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.)
Our tire contract with Evinco ends April 30, 2020, and we will be using Hoosier tires as the PKRA spec tire beginning with the 2020 Summer Season.
POPULAR CLASSES
These are currently the most popular classes at PKRA. All but the Shifters classes see participation at all races, and all but the Shifters and Tag100 Junior are expected to be championship classes (i.e. average at least 5 entries per race). We often see groups of 5 or more shifters, but only at certain races.
| Class . | Age | Engine | Fuel | Spec Oil | Weight (lbs) | Spec Tire | Rule Base |
|---|---|---|---|---|---|---|---|
| Kid Kart – GX50 | Attn 5 Cmp 8 |
Honda GX50 (See Kid Kart – Other below for other alternatives) |
VP110 | N/A | 160 | Hoosier R60B 4.5 | Per HPD Rules Gear: F16:R89 |
| LO206 Junior 1 | Attn 7 Cmp13 |
Briggs LO206 Junior with Carb Lock | VP110 | N/A | 235 | Hoosier R70 4.5 | Based on Briggs Rules. Blue slide required. |
| LO206 Junior 2 | 12-15 | Briggs LO206 Junior with Carb Lock | VP110 | N/A | 310 | Hoosier R70 4.5/6.0 | Based on Briggs Rules |
| LO206 Senior | 16+ | Briggs LO206 | VP110 | N/A | 360 | Hoosier R70 4.5/6.0 | Based on Briggs Rules |
| LO206 Masters | 40+ | Briggs LO206 | VP110 | N/A | 380 | Hoosier R70 4.5/6.0 | Based on Briggs Rules |
| TAG 100 Junior 2 | 12-15 | Air Cooled 100cc 2-Cycle Restricted Air Box Required |
VP110 | Motul Kart GP 2T | 320 | Hoosier R60B 4.5/7.1 |
Per Engine Mfg Rules Restricted Exhaust |
| KA100 Jr2 | 12-15 | IAME KA100, Restricted | VP110 | Motul Kart GP 2T | 320 | Hoosier R60B 4.5/7.1 |
Per IAME KA100 Rules. 22mm Exhaust |
| VLR 100 Jr2 | 12-15 | Vortex ROK VLR 100cc Restricted | VP110 | Motul Kart GP 2T | 320 | Hoosier R60B 4.5/7.1 |
Per Vortex Rules. Restricted Exhaust |
| TAG 100 Senior | 16+ | Air Cooled 100cc 2-Cycle Air Box Required |
VP110 | Motul Kart GP 2T | 360 | Hoosier R60B 4.5/7.1 |
Per Engine Mfg Rules |
| KA100 Sr | 16+ | IAME KA100 | VP110 | Motul Kart GP 2T | 360 | Hoosier R60B 4.5/7.1 |
Per IAME KA100 Rules. |
| VLR 100cc | 16+ | Vortex ROK VLR 100cc | VP110 | Motul Kart GP 2T | 360 | Hoosier R60B 4.5/7.1 |
Per Vortex Rules. |
| Shifter – Spec 125 |
15+ | Honda or ROK Only | VP110 | Hoosier R60A 4.5/7.1 |
|||
| Honda | 15+ | Honda 125cc – Air Box Required | VP110 | Motul Kart GP 2T |
385 | Hoosier R60A 4.5/7.1 |
|
| ROK | 15+ | ROK 125cc – Air Box Required | VP110 | Motul Kart GP 2T |
410 | Hoosier R60A 4.5/7.1 |
|
| Shifter – Open |
12+ | Any shifter not in Spec 125 class. Ages and weights are expected to conform to some recognized class, but will not be enforced beyond safety considerations. Air Box Req’d. Examples Below. | Non- Tech |
Non= Tech |
340 | Hoosier R60A 4.5/7.1 |
|
| IAME SSE | IAME SSE 175cc – Air Box Required | Hoosier R60A 4.5/7.1 |
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| KZ | KZ 125cc – Air Box Required | Hoosier R60A 4.5/7.1 |
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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 – Other | Attn 5 Cmp 8 |
Other 4 and 2 cycle alternatives | VP110 | N/A | By Engine |
Hoosier R60B 4.5 | |
| LO206 Kid Kart | Attn 5 Cmp 8 |
Briggs LO206 Junior with Carb Lock | VP110 | N/A | 170 | Hoosier R60B 4.5 | Per Briggs Rules. 4100rpm Rev Limiter, 555728 0.285 Black slide, Gear: F19:R57, MaxTorque Clutch, 5507 RLV Pipe |
| 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 | |
| TAG CADET MICRO | 7-10 | Mixed engines; Air Box Required | VP110 | Hoosier R70 4.5 | |||
| SKUSA Micro Swift | 7-10 | IAME Mini Swift with Micro Header | Motul Kart GP 2T | 225 | Hoosier R70 4.5 | ||
| 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 | ||||
| SKUSA Mini Swift | 9-13 | IAME Mini Swift | Motol Kart GP 2T | 245 | Hoosier R70 4.5 | ||
| Vortex Mini ROK | 8-12 | Vortex Mini ROK | 245 | Hoosier R70 4.5 | |||
| 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 | 320 | Hoosier R60A 4.5/7.1 | ||
| SKUSA X30 Junior | 12-15 | X30 + 29mm factory exhaust restr. | Motul Kart GP 2T | 320 | Hoosier R60A 4.5/7.1 | ||
| Vortex ROK TT Jr. | 12-15 | 320 | Hoosier R60A 4.5/7.1 | ||||
| TAG 125 Senior | 16+ | Mixed Engines; Air Box Required | VP110 | Motul Kart GP 2T |
370 | Hoosier R60A 4.5/7.1 | |
| 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