ART face design
Retains more ball speed across the face while staying forgiving on mishits.
Build Options
A 450cc players driver built for ball speed, control and workability
Sub 70 Golf · DriversThe Sub 70 859 Pro Driver pairs a traditionally shaped 450cc head with Sub 70's patent-pending ART (Axis of Rotation Technology) face, which replaces traditional bulge and roll to deliver more consistent ball speed regardless of impact location. A carbon fiber crown and heel free up weight for precise placement, and adjustable weights let better players shape shots high, low, left or right.

Why golfers choose it
Retains more ball speed across the face while staying forgiving on mishits.
Saves weight that is redistributed for maximum ball speed and consistency.
A slightly smaller 450cc head with a 1° open face gives confidence to work the ball.
Product details
| Brand | Sub 70 |
|---|---|
| Model | 859 Pro Driver |
| Lofts | 9°, 10.5° |
| Lie | 58° |
| Face angle | 1° open (standard setting) |
| Volume | 450cc |
| Head weight | 203 g |
| Standard length (graphite) | 45.5" |
| Bulge / roll | 14 / 20 |
| Weights | 6g heel, 12g toe (2, 4, 8, 10, 14, 16g extra) |
| Hosel | +/- 2° adjustable, .335 parallel |
| Face | 6-4 Beta titanium |
Offered right-handed in Regular, Stiff and X-Stiff flex. No-upcharge shaft choices from Sub 70 include LA Golf A-Series (High, Mid and Low launch), Project X Denali Red, Blue and Black Frost. Premium upgrades such as UST Proforce V2, KBS TD 2.0, Aldila NV, Newton, Fujikura Ventus Velocore+ and Graphite Design Tour AD are also available. Standard length is 45.5".
Product questions
Grater Golf support
Tell us your swing speed, current clubs and ball flight, and we’ll help you choose the right Sub 70 head, shaft, grip and length.
Ask Grater GolfFree standard shipping on most orders $100+ within the contiguous U.S. Eligible items may be returned within 30 days. Custom, modified, cut, installed, and made-to-order products may be final sale.