MULTI-MATERIAL GOLF CLUB HEAD

1 . A golf club head comprising:

a body portion further comprising;

a main body chassis having an upper hosel opening having a first diameter,

wherein said main body chassis forms a striking face portion that defined a forwardmost vertical plane, and

wherein said main body chassis further comprises a recess around

a perimeter of said main body chassis,

a crown portion having a secondary upper hosel opening having a second diameter,

wherein said crown portion overlaps said body portion at said recess of said body portion to form a crown, and

an upper hosel component adapted to engage said secondary upper hosel opening,

wherein said crown portion is made from a first material having a first density and said body portion is made from a second material having a second density, and

wherein said first density is less than said second density.

2 . The golf club head of claim 1 , wherein said second diameter is smaller than said first diameter.

3 . The golf club head of claim 1 , wherein said upper hosel component further comprises;

an upper hosel component base portion, and

an upper hosel component tip portion,

wherein said upper hosel component base portion has a width, at its widest portion, that is greater than said second diameter.

4 . The golf club head of claim 3 , wherein said upper hosel component base portion further comprises one or more anti-rotation features, and

wherein said crown portion further comprises one or more complimentary anti-rotation features,

wherein said one or more anti-rotation features and said one or more complimentary anti-rotation features combine to secure said upper hosel component to said crown.

5 . The golf club head of claim 1 , wherein a forwardmost point of said crown portion is located less than about 17.5 mm away from said forwardmost vertical plane.

6 . The golf club head of claim 5 , wherein said forwardmost point of said crown portion is located less than about 16.5 mm away from said forwardmost vertical plane.

7 . The golf club head of claim 6 , wherein said forwardmost point of said crown portion is located less than about 15.5 mm away from said forwardmost vertical plane.

8 . The golf club head of claim 1 , wherein said crown portion has a Hosel Portion Crown Transition Slope of less than about −0.036 over the first 22.5 mm of a hosel transition.

9 . The golf club head of claim 8 , wherein said crown portion has a Hosel Portion Crown Transition Slope of less than about −0.038 over the first 22.5 mm of a hosel transition.

10 . The golf club head of claim 9 , wherein said crown portion has a Hosel Portion Crown Transition Slope of less than about −0.045 over the first 22.5 mm of a hosel transition.

11 . The golf club head of claim 1 , wherein said crown portion further comprises a hosel supporting region,

said hosel supporting region further comprises;

a hosel supporting region inner radial thickness, and

a hosel supporting region outer radial thickness,

wherein said hosel supporting region inner radial thickness is greater than said hosel supporting region outer radial thickness.

12 . The golf club head of claim 11 , wherein said hosel supporting region inner radial thickness is greater than about 1.50 mm, and

wherein said hosel supporting region outer radial thickness is less than about 0.80 mm.

13 . The golf club head of claim 12 , wherein said hosel supporting region inner radial thickness is greater than about 1.55 mm, and

wherein said hosel supporting region outer radial thickness is less than about 0.70 mm.

14 . The golf club head of claim 13 , wherein said hosel supporting region inner radial thickness is greater than about 1.60 mm, and

wherein said hosel supporting region outer radial thickness is less than about 0.65 mm.

15 . A golf club head comprising:

a body portion further comprising;

a main body chassis having an upper hosel opening having a first diameter,

wherein said main body chassis forms a striking face portion that defined a forwardmost vertical plane, and

wherein said main body chassis further comprises a recess around

a perimeter of said main body chassis,

a crown portion having a secondary upper hosel opening having a second diameter,

wherein said crown portion overlaps said body portion at said recess of said body portion to form a crown, and

an upper hosel component adapted to engage said secondary upper hosel opening,

wherein said crown portion is made from a first material having a first density and said body portion is made from a second material having a second density, and

wherein a forwardmost point of said crown portion is located less than about 17.5 mm away from said forwardmost vertical plane.

16 . The golf club head of claim 15 , wherein said forwardmost point of said crown portion is located less than about 16.5 mm away from said forwardmost vertical plane.

17 . The golf club head of claim 16 , wherein said forwardmost point of said crown portion is located less than about 15.5 mm away from said forwardmost vertical plane.

18 . The golf club head of claim 15 , wherein said crown portion further comprises a hosel supporting region,

said hosel supporting region further comprises;

a hosel supporting region inner radial thickness, and

a hosel supporting region outer radial thickness,

wherein said hosel supporting region inner radial thickness is greater than said hosel supporting region outer radial thickness.

19 . The golf club head of claim 18 , wherein said hosel supporting region inner radial thickness is greater than about 1.50 mm, and

wherein said hosel supporting region outer radial thickness is less than about 0.80 mm.

20 . The golf club head of claim 19 , wherein said hosel supporting region inner radial thickness is greater than about 1.55 mm, and

wherein said hosel supporting region outer radial thickness is less than about 0.70 mm.