- Round profile with micro-siped knobs and carbide studs for traction on ice
- Works best when run at minimal pressure but can be used at full pressure on non-icy roads with minimal road noise
- *To ensure proper spike seating the tire should be run for roughly 25 miles on asphalt while avoiding fast acceleration or hard braking
- Twin Skin - An additional rubber coating on the side protects against cuts and allows for uniform coloring
- SGRD - Smartguard equipped tires feature a 5mm breaker belt made from special Indian and partially recycled rubber
- TIRE SWB MARATHON WINTER PLUS 700x40 PERF TWIN SM-GUARD BK/BK/REF 240-STUD-SNOW WIRE
Size: 700x40
ISO: 622
Bead: Wire
Belted: Belted
Tread/SW: Bk/Bsk/Ref
PSI: 70
Weight: 970
TPI: 67
Features: TWN/SGRD
Reflective: Yes
Studs: 240
Tread Style: Knobby
