Condition
Technical corner-heavy track
- Typical direction
- Controlled grip, moderate diameter, stable wheel fit
← ALL GUIDES
🛞
ALL RACERS
TIRES & WHEELS
Control grip, bounce, diameter and stability without violating class rules.
SECTION 01
Key variables
- →Diameter changes effective gearing and ground clearance.
- →Width and offset influence stability and available space around brakes and plates.
- →Soft compounds usually add grip; harder and low-friction compounds usually reduce scrub.
- →Four wheels must be secure, true enough to run safely and remain within the 22–35 mm diameter and 8–26 mm width limits.
SECTION 02
Track behavior
| Condition | Typical direction |
|---|---|
| Technical corner-heavy track | Controlled grip, moderate diameter, stable wheel fit |
| Long straight track | Low rolling loss and careful overall gearing |
| Jump-heavy track | Reduce bounce and verify landing stability |
| Slopes and banks | Protect ground clearance and avoid excessive tire deformation |
Condition
Long straight track
- Typical direction
- Low rolling loss and careful overall gearing
Condition
Jump-heavy track
- Typical direction
- Reduce bounce and verify landing stability
Condition
Slopes and banks
- Typical direction
- Protect ground clearance and avoid excessive tire deformation
SECTION 03
Class legality
- →Box Stock and Open Box Stock use the kit tire and wheel specification.
- →B-Max permits legal replacement wheels/tires but prohibits sanding, shaving, stretching, truing and chemical treatment.
- →B-Max wheel piercing through the existing bore is allowed.
- →Open Class permits shaping within official limits, but the surface material properties may not be chemically changed.
BEFORE RACE DAY
VERIFY YOUR CLASS
Setup advice does not override the rulebook. Check the detailed class page and present uncertain configurations before official inspection.