Laser 6929 Chain Adjustment Hook Wrench 125mm

This chain adjustment hook wrench from Laser is a 125 mm-jaw spanner that helps maintain correct rear chain tension on sport and road motorcycles, particularly models from Ducati, Honda, MV Agusta and Triumph. It combines a long 340 mm overall length with a soft-grip handle to give extra leverage and a more comfortable hold when adjusting tight or seized adjusters.

Key Points

This tool suits owners and workshop technicians who need a reliable hook wrench for chain adjusters on specific bike models. It is compatible with several Ducati and other marques according to the manufacturer and offers a longer reach than smaller versions. The soft grip reduces hand fatigue during repeated use and helps maintain control when applying torque.

Technical Specifications

• Name: Laser 6929 Chain Adjustment Hook Wrench 125mm
• Jaw width: 125 mm
• Overall length: 340 mm
• Handle: soft grip
• Compatible with: Ducati, Honda CB1000R, MV Agusta, Triumph (as listed by Laser)
• Equivalent: Ducati OEM 88713.3211

Practical Tips

Use steady, even pressure when turning the adjuster to avoid sudden slips or damage to the adjuster nut. For Ducati users who need a 120 mm jaw instead, Laser lists part number 6931 as the alternative. Keep the tool clean and lightly oiled where the hook meets the body to prevent corrosion and ensure the hook maintains its profile over time.

Advantages

The extended length makes it easier to reach awkward adjusters without needing to adopt uncomfortable positions, and the soft-grip handle improves handling in workshop conditions. It may not replace a full set of specialist tools for all models, but it covers several common bikes and is a practical addition for routine maintenance according to the manufacturer's compatibility notes.