Let the Dunderbeist loose on groomed winter singletrack and feel its aggressive tread claw through snow with unrivaled propulsion and braking traction. The 4.6" footprint delivers enhanced floatation across a wide range of frames, while dual-compound rubber keeps rolling resistance low without sacrificing control through berms and loose snow. Point uphill and feel the Dunderbeist dig in as it attacks climbs covered in unconsolidated snow. Pair with the Flowbeist front tire for the ultimate combination of traction and control.

Key Features

• Aggressive rear-specific tread — maximum propulsion and braking traction in loose and packed snow
• Dual-compound rubber — low rolling resistance with corner grip
• Braced side lugs — improved cornering on snow and hardpack
• Perpendicular siping — increased traction under braking and acceleration
• 4.6" wide profile — enhanced floatation compatible with a wide range of fat bike frames
• 120 TPI casing — supple, lightweight, tubeless-ready with folding bead
• Pairs with the Flowbeist front tire for the ultimate winter fat bike setup

Product Details

• Brand: 45NRTH
• Model: Dunderbeist
• Intended Use: Rear
• Size: 26 x 4.6
• TPI: 120
• Bead: Folding
• Tubeless: Yes
• Color: Black
• SKU: TR4561

Important Notes

• ⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
• Always check with your rim manufacturer to verify rim & tire compatibility before assembly or use.