SR125 Wheels V3
Price:
$300.00 AUD
Radium Performance® SR125
Road feel without compromise.
Now Kegel compatible.
Urethane is precise but punishing. Pneumatic is grippy but high-maintenance. The SR125 doesn't ask you to choose.
Stability
Glassy smooth at 45+ mph. Engineered balance that inspires confidence at speed.
Carve
Offset core design enables tight, low-speed turns and makes carving effortless.
Grip
Rivals pneumatic grip levels, but with more forgiving grip-slip transition at the limit.
Comfort
Compression holes and soft NR/SBR rubber absorb road noise on and off pavement.
Hybrid Kegel Core System
Standard Kegel cores and big rubber wheels don't get along — regular 22mm skate bearings weren't built for the lateral forces a 125mm wheel generates at speed. Our hybrid approach solves it: a 28mm mountainboard-spec bearing seat handles the heavy load on the outside, while a standard 22mm seat on the inside preserves the Kegel mounting pattern. Full Kegel compatibility. No bearing failures.
O-Ring Bearing Retention
Metal cores demand tight tolerances — which makes installing and removing bearings a chore, and creates wear if there's any movement in the seat. The O-ring system keeps bearings locked and creak-free, protecting the seat long-term.
Compatibility
Pin diameter of 5.6mm — check your pulleys and adapters before ordering.
Most plastic pulleys
Metal pulleys with pins ≤ 5.5mm diameter
Gear drive adapters — only compatible with pins < 5.5mm diameter. Check before ordering.
Specifications
Dimensions
125 × 75mm
Profile
Square with rounded corners
Compound
High-grip NR/SBR rubber
Core material
6061-T6 aluminium
Core pattern
Kegel (5.6mm holes)
Bearing seats
22mm inner / 28mm outer, 10mm spacing
Retention
O-ring system
Weight
700g per wheel
Includes
4 wheels + O-rings
Excludes
Bearings (sold separately)
Bearings not included. Pick up a set of high-performance bearings here →
