{"product_id":"progress-golf-bb6-mb-02-driver-head-copy","title":"Progress Golf BB6 SB-03 Driver Head","description":"\u003cp\u003eBB6 SB-03 Driver Head | Endless Ambition Series\u003c\/p\u003e\n\u003cdiv id=\"article740667\" class=\"article\" data-ams-editable='{\"name\":\"article\",\"index_id\":\"740667\"}' data-ams-editable-option='{\"hidden\":false}'\u003e\n\u003cdiv class=\"article_outer\"\u003e\n\u003cdiv class=\"article_body article_center\"\u003e\n\u003cdiv class=\"image\"\u003eR\u0026amp;A \/ USGA SLE Rule Conforming\u003cbr\u003e\u003cbr\u003eDouble Impact. Low CG. Stronger Ball Flight.\u003cbr\u003eThe BB6 SB-03 is a precision-engineered Japanese driver head built for golfers who demand more distance without sacrificing control. Through its proprietary Power Center Bridge Structure and a redesigned shallow-back profile, the SB-03 delivers explosive ball speed, a penetrating low-spin trajectory, and the versatility to be tuned exactly to your swing.\u003cbr\u003e\u003cbr\u003ePower Center Bridge Structure\u003cbr\u003eAt the heart of the SB-03 is a radical redesign of the sole. Where the BB6 MB-02 distributed its bellows bridge across the sole, the SB-03 concentrates the entire flex zone at the sole centre. At impact, force from the head is channelled directly into this zone — amplifying the flex and snap-back of the inner bellows and sending the ball off the face faster. The result is a more stable head path through the swing and a measurable increase in initial ball velocity on every strike.\u003cbr\u003e\u003cbr\u003eShallow-Back Design for Lower CG\u003cbr\u003eCompared to the MB-02, the SB-03 features a lower rear profile — a shallow-back shape that drops the centre of gravity 2 to 3mm lower. This reduction in CG height decreases backspin and promotes a higher launch angle, producing the kind of strong, boring ball flight that holds its line in the wind and carries further downrange.\u003cbr\u003e\u003cbr\u003eDual Weight System — Tune Your Trajectory\u003cbr\u003eTwo interchangeable sole weights (standard configuration: 10g rear + 2g centre) allow you to independently adjust CG depth and CG height to match your swing speed and desired shot shape.\u003cbr\u003e • Normal Position (10g rear \/ 2g centre): Higher MOI at 4,350 g·cm², deeper CG, more forgiveness, standard spin. Ideal for players seeking stability and a draw-friendly setup.\u003cbr\u003e • Low-Spin Position (2g rear \/ 10g centre): Forward CG shift reduces spin for a tighter, more piercing trajectory. Built for faster swingers chasing extra roll and distance.\u003cbr\u003eOptional weights available separately from 2g to 14g, giving you complete control over how this head performs.\u003cbr\u003e\u003cbr\u003eJust-Meet Neck Adjuster\u003cbr\u003eThe SB-03’s adjustable hosel lets you fine-tune loft, lie angle, and face angle independently — so you can dial in ball flight for any course, condition, or swing tendency without changing equipment.\u003cbr\u003e • L Type (9.5°): Adjustable from 8.5° to 10.5°\u003cbr\u003e • H Type (10.75°): Adjustable from 9.75° to 11.75°\u003cbr\u003e • Lie angle adjustable up to 61.0°\u003cbr\u003e\u003cbr\u003eSpecifications\u003cbr\u003e|Construction |3-piece body |\u003cbr\u003e|Face Material |ZAT158Ti (forged) |\u003cbr\u003e|Body Material |8-1-1 Titanium precision cast|\u003cbr\u003e|Crown \u0026amp; Sole |Carbon composite (partial) |\u003cbr\u003e|Head Volume |460cc |\u003cbr\u003e|Head Weight |199g ±2g |\u003cbr\u003e|Standard Weights|2g (centre) + 10g (rear) |\u003cbr\u003e|Rule Compliance |R\u0026amp;A \/ USGA SLE Conforming |\u003cbr\u003e\u003cbr\u003eIn the Box: Head cover included. Torque wrench available separately.\u003cbr\u003e\u003cbr\u003eFeel free to ask if you’d like a shorter version, a different tone, or a Japanese-language variant for a separate listing.​​​​​​​​​​​​​​​​\u003c\/div\u003e\n\u003cdiv class=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"image\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Progress BB6","offers":[{"title":"L-Type","offer_id":45027477061814,"sku":null,"price":650.0,"currency_code":"USD","in_stock":true},{"title":"H-Type","offer_id":45027477094582,"sku":null,"price":650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0196\/4282\/files\/98B769D2-42AF-4C0F-ABD3-FE37BBF45501.jpg?v=1779001604","url":"https:\/\/shop.torquegolf.com\/products\/progress-golf-bb6-mb-02-driver-head-copy","provider":"torquegolf","version":"1.0","type":"link"}