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

Product Information

The X-GRIP Jack the Gripper 140/80-18 (Medium+) rear tire is a semi-soft compound developed for riders who want dependable grip with added durability across technical and changing terrain. Positioned between soft and medium compounds, Medium+—also known as semi-soft—delivers strong traction with less wear, making it ideal for mixed conditions such as damp dirt, loose climbs, roots, and shallow rock sections.

The 13 mm V-shaped tread blocks are spaced to offer bite without excessive knob flex, and the No-Bounce rubber compound provides improved rebound control, especially through chopped-out trails and off-camber lines. Built with a bias-ply carcass, this tire offers the right amount of sidewall support while still flexing through rough or uneven terrain.

Fully FIM legal and compatible with mousse inserts, the Medium+ version is a strong all-rounder that can handle technical terrain without the quicker wear of softer options.

Key Features

• Semi-soft (Medium+) compound balances traction and longevity
• V-shaped 13 mm knobs provide bite and braking stability
•  FIM legal for competitive off-road use
• Reinforced carcass improves sidewall performance
• Ideal with mousse inserts (EH-2, SSE-2, or SuperSoft)

Fitment

• 18" M+S Rear TT Dirt Bike Tire (140/80-18 70M)