Project X Denali Blue 6.5 70g Extra Stiff Flex Driver Shaft

The Project X Denali Blue 6.5 70 Extra Stiff Flex driver shaft is engineered for golfers who want a balanced mid-launch, mid-spin ball flight with exceptional stability and a smooth, controlled feel. Designed within the Denali series, the Blue profile offers a refined blend of performance characteristics, ideal for strong golfers who want a reliable trajectory that combines carry distance with accuracy.

At approximately 73 grams, this shaft provides a firm, confidence-boosting feel, perfectly suited for players with faster swing speeds or more aggressive transitions. The Denali Blue construction features a stable butt section, offering control and feedback in the hands, and a straight-taper midsection for smooth energy transfer throughout the swing. This design delivers predictable timing and encourages consistently centred strikes.

The Denali Blue series sits between the high-launch Denali Red and the low-spin Denali Black, making it the most versatile option in the lineup. Its mid-launch and mid-spin design supports a flight window that is playable for a wide range of golfers who require stability and responsiveness without extreme behaviour in either direction.

This shaft is custom-built to your specifications, ensuring perfect length, grip and adapter selection for optimal performance with your chosen driver head.

Performance Features

• Mid Launch Design – Produces a controlled, playable trajectory suited for distance and stability.
• Mid Spin Profile – Helps maintain carry distance while supporting reliable dispersion control.
• Extra Stiff Flex (6.5) – Ideal for higher swing speeds needing stability through transition and impact.
• Stable Butt Section – Enhances control, feedback and confidence.
• Smooth Energy Transfer – Straight-taper profile improves feel and timing during the downswing.
• Weight Class (~70g) – Adds stability and control without sacrificing smoothness.

Ideal Golfer Profile

The Denali Blue 70 Extra Stiff is best suited for golfers who:

• Have fast swing speeds or an assertive transition
• Want a balanced, repeatable flight window
• Prefer a firm, controlled feel
• Are seeking tight dispersion and consistent ball-striking
• Want a shaft that avoids both ballooning and overly flat trajectories
• Are upgrading to a premium, performance-focused custom build

Expected On-Course Benefits

• More predictable and repeatable launch conditions
• Reliable trajectory control without excessive spin
• Strong stability for confident swings at higher speeds
• Enhanced dispersion patterns for improved accuracy
• Smooth, controlled feel with responsive feedback

Technical Specifications

Simply select your spec, including your required length, grip and adapter