X-Grip 'JACK the GRIPPER' 18" Rear Tire (Semi-Soft [Medium+]) - (140/80-18)

Product Information

The X-Grip “Jack the Gripper” 18-inch Rear Tire (Semi-Soft / Medium+) is designed for riders who want a balanced combination of traction, durability, and control across mixed enduro terrain. Sized at 140/80-18, this rear tire sits between the Soft and Hard compounds, making it a versatile choice for riders who encounter changing conditions throughout a single ride or race.

The semi-soft (Medium+) rubber compound provides improved grip over hardpack and loose surfaces while offering better wear resistance than a full soft tire. Its 13 mm tall V-shaped tread pattern delivers reliable forward drive under acceleration, predictable braking, and stable side grip on off-camber sections. This tread design allows the tire to maintain traction without excessive knob flex, even on longer rides.

X-Grip’s No-Bounce rubber compound helps reduce unwanted rebound and deflection on rocks, roots, and hard surfaces, improving control and rider feedback. Paired with a reinforced bias-ply carcass, the tire delivers controlled flex and strong sidewall stability, especially in low-speed, high-load enduro situations. FIM-approved and mousse compatible, the Jack the Gripper Semi-Soft is ideal for riders who want one tire that performs consistently across a wide range of off-road conditions.

Key Features

• Semi-soft (Medium+) compound balances traction and tread life
• 13 mm V-shaped tread blocks improve drive, braking, and side grip
• No-Bounce compound reduces deflection on rocks and hardpack
• Reinforced carcass provides stability and controlled flex
• Designed for mixed enduro and technical trail riding
• FIM-approved for competition use
• Optimized for mousse inserts including EH-2, SSE-2, and SuperSoft
• Ideal choice for riders facing changing terrain conditions

Specifications

• Placement: Rear
• Rim size: 18 inch
• Tire size: 140/80-18 (70M)
• Type: M+S, Tube Type (TT)
• Application: Enduro and off-road motorcycles