MICHELIN XZY 9.5R17.5 129/127L TL

Description

MICHELIN XZY 9.5R17.5 129/127L TL is a heavy-duty commercial truck tire designed for regional and urban delivery applications requiring exceptional durability and load capacity. Here’s a professional analysis:

1. Core Specifications

• Size: 9.5R17.5 (Metric radial sizing)
• Load Index:
  • 129 (Single): 1,850 kg (4,079 lbs) per tire
  • 127 (Dual): 1,750 kg (3,858 lbs) per tire
• Speed Rating (L): 120 km/h (75 mph)
• Ply Rating: 12PR (Extra-heavy reinforcement)
• Tread Depth: 18/32″ (14.3mm new)
• Max Inflation: 95 psi (6.6 bar)
• Weight: 38 kg (84 lbs)

2. Construction Features

• Carcass:
  • 4 steel belts + 2 nylon cap plies
  • Aramid fiber overlay in sidewalls
• Bead:
  • Quadruple-strand steel cables
  • Extended rim flange protector (25mm)
• Tread:
  • Zigzag groove design
  • Full-depth siping
  • Stone ejector ribs

3. Performance Data

4. Target Applications

• Regional Distribution: Day cab tractors
• Urban Delivery: 16-26′ box trucks
• Vocational: Mobile workshops
• Specialty: Armored cash transport

5. Maintenance Protocol

• Inflation Pressure:
  • Normal: 85 psi (5.9 bar)
  • Full Load: 95 psi (6.6 bar)
  • Winter: +5 psi cold adjustment
• Service Intervals:
  • Rotation: 25,000 km
  • Alignment: 50,000 km
  • Inspection: Weekly for tread/sidewall damage