Cool Head
COOL HEAD SHELL W/STAY
Item: 27-0250H
Brand : PRO DESIGN
Your Price: $236.95
The product is out of stock

COOL HEAD SHELL W/STAY
27-0250H
Weight: 1.21 lbs
Package Dimensions: 7.25 x 11.8 x 1.95
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Honda
1986
TRX250R
1987
TRX250R
1988
TRX250R
1989
TRX250R
COOL HEAD SHELL W/STAY
Item: 27-0252S
Brand : PRO DESIGN
Your Price: $236.95
The product is out of stock

COOL HEAD SHELL W/STAY
27-0252S
Weight: 1.21 lbs
Package Dimensions: 6.7 x 8.9 x 2
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Suzuki
1985
Lt250R Quadracer
1986
Lt250R Quadracer
1987
Lt250R Quadracer
1988
Lt250R Quadracer
1989
Lt250R Quadracer
1990
Lt250R Quadracer
1991
Lt250R Quadracer
1992
Lt250R Quadracer
COOL HEAD DOME STANDARD BORE 17CC
Item: 27-0257H
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 17CC
27-0257H
Weight: 0.7314 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Honda
1986
TRX250R
1987
TRX250R
1988
TRX250R
1989
TRX250R
COOL HEAD DOME STANDARD BORE 18CC
Item: 27-0258H
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 18CC
27-0258H
Weight: 0.71 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Honda
1986
TRX250R
1987
TRX250R
1988
TRX250R
1989
TRX250R
COOL HEAD DOME STANDARD BORE 19CC
Item: 27-0259H
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 19CC
27-0259H
Weight: 0.32 lbs
Package Dimensions: 5.65 x 6.8 x 1.55
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Honda
1986
TRX250R
1987
TRX250R
1988
TRX250R
1989
TRX250R
COOL HEAD DOME STANDARD BORE 20CC
Item: 27-0260H
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 20CC
27-0260H
Weight: 0.41 lbs
Package Dimensions: 2.9 x 6.3 x 1.6
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Honda
1986
TRX250R
1987
TRX250R
1988
TRX250R
1989
TRX250R
COOL HEAD DOME STANDARD BORE 20CC
Item: 27-0260S
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 20CC
27-0260S
Weight: 0.42 lbs
Package Dimensions: 6.65 x 5.15 x 1.55
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Suzuki
1985
Lt250R Quadracer
1986
Lt250R Quadracer
1987
Lt250R Quadracer
1988
Lt250R Quadracer
1989
Lt250R Quadracer
1990
Lt250R Quadracer
1991
Lt250R Quadracer
1992
Lt250R Quadracer
COOL HEAD DOME STANDARD BORE 21CC
Item: 27-0261H
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 21CC
27-0261H
Weight: 1.0042 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Honda
1986
TRX250R
1987
TRX250R
1988
TRX250R
1989
TRX250R
COOL HEAD DOME STANDARD BORE 21CC
Item: 27-0261S
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 21CC
27-0261S
Weight: 0.2166 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Suzuki
1985
Lt250R Quadracer
1986
Lt250R Quadracer
1987
Lt250R Quadracer
1988
Lt250R Quadracer
1989
Lt250R Quadracer
1990
Lt250R Quadracer
1991
Lt250R Quadracer
1992
Lt250R Quadracer
COOL HEAD DOME STANDARD BORE 22CC
Item: 27-0262H
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 22CC
27-0262H
Weight: 0.7342 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Honda
1986
TRX250R
1987
TRX250R
1988
TRX250R
1989
TRX250R
COOL HEAD DOME STANDARD BORE 22CC
Item: 27-0262S
Brand : PRO DESIGN
Your Price: $47.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 22CC
27-0262S
Weight: 0.5675 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Suzuki
1985
Lt250R Quadracer
1986
Lt250R Quadracer
1987
Lt250R Quadracer
1988
Lt250R Quadracer
1989
Lt250R Quadracer
1990
Lt250R Quadracer
1991
Lt250R Quadracer
1992
Lt250R Quadracer
COOL HEAD SHELL W/OUT STAY
Item: 27-0310H
Brand : PRO DESIGN
Your Price: $224.95
The product is out of stock

COOL HEAD SHELL W/OUT STAY
27-0310H
Weight: 1.02 lbs
Package Dimensions: 6.75 x 5.85 x 1.55
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Honda
1986
TRX250R
1987
TRX250R
1988
TRX250R
1989
TRX250R
COOL HEAD DOME STANDARD BORE 15CC
Item: 27-0315
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 15CC
27-0315
Weight: 0.67 lbs
Package Dimensions: 5.2 x 6.6 x 1.45
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME STANDARD BORE 16CC
Item: 27-0316
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 16CC
27-0316
Weight: 0.645 lbs
Package Dimensions: 4.4 x 6.2 x 1.5
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME BIG BORE 16CC
Item: 27-0316B
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME BIG BORE 16CC
27-0316B
Weight: 0.575 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME STANDARD BORE 17CC
Item: 27-0317
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 17CC
27-0317
Weight: 0.63 lbs
Package Dimensions: 6.65 x 5.2 x 1.5
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME BIG BORE 17CC
Item: 27-0317B
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME BIG BORE 17CC
27-0317B
Weight: 0.65 lbs
Package Dimensions: 6.65 x 5.25 x 1.5
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME STANDARD BORE 18CC
Item: 27-0318
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 18CC
27-0318
Weight: 0.64 lbs
Package Dimensions: 5.2 x 6.55 x 1.5
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME BIG BORE 18CC
Item: 27-0318B
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME BIG BORE 18CC
27-0318B
Weight: 0.8589 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME STANDARD BORE 19CC
Item: 27-0319
Brand : PRO DESIGN
Your Price: $91.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 19CC
27-0319
Weight: 0.54 lbs
Package Dimensions: 5.4 x 7.05 x 1.4
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME BIG BORE 19CC
Item: 27-0319B
Brand : PRO DESIGN
Your Price: $91.95
The product is out of stock

COOL HEAD DOME BIG BORE 19CC
27-0319B
Weight: 0.63 lbs
Package Dimensions: 6.8 x 5.3 x 1.5
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME STANDARD BORE 20CC
Item: 27-0320
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 20CC
27-0320
Weight: 0.63 lbs
Package Dimensions: 5.25 x 6.5 x 1.5
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME BIG BORE 20CC
Item: 27-0320B
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME BIG BORE 20CC
27-0320B
Weight: 0.61 lbs
Package Dimensions: 6.55 x 5.05 x 1.5
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME STANDARD BORE 21CC
Item: 27-0321
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 21CC
27-0321
Weight: 0.61 lbs
Package Dimensions: 5.1 x 6.65 x 1.45
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME STANDARD BORE 22CC
Item: 27-0322
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 22CC
27-0322
Weight: 0.6 lbs
Package Dimensions: 6.75 x 5.1 x 1.5
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME BIG BORE 22CC
Item: 27-0322B
Brand : PRO DESIGN
Your Price: $79.95
The product is out of stock

COOL HEAD DOME BIG BORE 22CC
27-0322B
Weight: 0.49 lbs
Package Dimensions: 5.3 x 6.65 x 1.45
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD SHELL
Item: 27-0330
Brand : PRO DESIGN
Your Price: $288.95
The product is out of stock

COOL HEAD SHELL
27-0330
Weight: 3.41 lbs
Package Dimensions: 10.05 x 12.15 x 2.15
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD SHELL
Item: 27-0330A
Brand : PRO DESIGN
Your Price: $246.95
The product is out of stock

COOL HEAD SHELL
27-0330A
Weight: 2.486 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Suzuki
1988
Lt500R Quadracer
1989
Lt500R Quadracer
1990
Lt500R Quadracer
COOL HEAD SHELL
Item: 27-0330B
Brand : PRO DESIGN
Your Price: $246.95
The product is out of stock

COOL HEAD SHELL
27-0330B
Weight: 2.2342 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Suzuki
1987
Lt500R Quadracer
COOL HEAD STUD SET
Item: 27-0331
Brand : PRO DESIGN
Your Price: $49.95
The product is out of stock

COOL HEAD STUD SET
27-0331
Weight: 0.54 lbs
Package Dimensions: 4.45 x 6.5 x 0.8
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD O-RING SET
Item: 27-0332
Brand : PRO DESIGN
Your Price: $25.95
The product is out of stock

COOL HEAD O-RING SET
27-0332
Weight: 0.05 lbs
Package Dimensions: 4 x 6.15 x 0.65
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Yamaha
1987
YFZ350 Banshee
1988
YFZ350 Banshee
1989
YFZ350 Banshee
1990
YFZ350 Banshee
1991
YFZ350 Banshee
1992
YFZ350 Banshee
1993
YFZ350 Banshee
1994
YFZ350 Banshee
1995
YFZ350 Banshee
1996
YFZ350 Banshee
1997
YFZ350 Banshee
1998
YFZ350 Banshee
1999
YFZ350 Banshee
2000
YFZ350 Banshee
2001
YFZ350 Banshee
2002
YFZ350 Banshee
2003
YFZ350 Banshee
2004
YFZ350 Banshee
2005
YFZ350 Banshee
2006
YFZ350 Banshee
COOL HEAD DOME STANDARD BORE 59CC
Item: 27-0333D
Brand : PRO DESIGN
Your Price: $59.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 59CC
27-0333D
Weight: 1.412 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Suzuki
1987
Lt500R Quadracer
1988
Lt500R Quadracer
1989
Lt500R Quadracer
1990
Lt500R Quadracer
COOL HEAD DOME STANDARD BORE 62CC
Item: 27-0334D
Brand : PRO DESIGN
Your Price: $59.95
The product is out of stock

COOL HEAD DOME STANDARD BORE 62CC
27-0334D
Weight: 0.94 lbs
- CNC machined from billet aluminum
- Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
- Substantial increases in cooling efficiency
Product fitment
Suzuki
1987
Lt500R Quadracer
1988
Lt500R Quadracer
1989
Lt500R Quadracer
1990
Lt500R Quadracer
Cool Head: Enhanced Cooling for Your Ride
The Cool Head is the ultimate solution for motorcyclists and riders looking to significantly improve their engine cooling efficiency. This premium product, available at Partiron, features interchangeable O-ringed domes that allow you to adjust compression based on fuel quality, elevation, and timing. Say goodbye to overheating issues and hello to optimal performance on every ride!
Maximize Your Engine's Performance
With the Cool Head, you can expect substantial increases in cooling efficiency, ensuring that your engine runs smoothly even in the toughest conditions. This precision-engineered component helps maintain optimal temperatures, allowing for better performance and longevity of your vehicle. Enjoy the peace of mind that comes with knowing your engine is well-protected.
Customizable Compression Settings
The adjustable O-ringed domes give you the flexibility to customize the compression according to your specific needs. Whether you're riding at high elevations or using different fuel types, you can easily fine-tune your engine's performance. This adaptability is a game-changer for riders who demand the best from their machines.
Durable Construction for Long-Term Use
Crafted from CNC-machined billet aluminum, the Cool Head is designed to withstand the rigors of the road. Its robust construction ensures durability and reliability, making it a smart investment for any serious rider. You can trust this component to perform under pressure and keep your engine cool.
Specifications
| Parameter | Value |
|---|---|
| Material | CNC machined billet aluminum |
| Adjustable Compression | Interchangeable O-Ringed domes |
| Cooling Efficiency | Substantial increases |
There are variations available for this product; for more details, please ensure you select the appropriate variation.
FAQ
Is the Cool Head compatible with all motorcycle models?
The Cool Head is designed to fit a range of motorcycle models, but it's always best to check compatibility with your specific bike model before purchasing.
How do I install the Cool Head?
Installation of the Cool Head is straightforward. However, we recommend consulting a professional mechanic if you're uncertain about the process to ensure proper installation.
Fitment:
| Brand | Year | Model |
|---|---|---|
| Honda | 1986 | TRX250R |
| Honda | 1987 | TRX250R |
| Honda | 1988 | TRX250R |
| Honda | 1989 | TRX250R |
| Suzuki | 1985 | Lt250R Quadracer |
| Suzuki | 1986 | Lt250R Quadracer |
| Suzuki | 1987 | Lt250R Quadracer |
| Suzuki | 1987 | Lt500R Quadracer |
| Suzuki | 1988 | Lt250R Quadracer |
| Suzuki | 1988 | Lt500R Quadracer |
| Suzuki | 1989 | Lt250R Quadracer |
| Suzuki | 1989 | Lt500R Quadracer |
| Suzuki | 1990 | Lt250R Quadracer |
| Suzuki | 1990 | Lt500R Quadracer |
| Suzuki | 1991 | Lt250R Quadracer |
| Suzuki | 1992 | Lt250R Quadracer |
| Yamaha | 1987 | YFZ350 Banshee |
| Yamaha | 1988 | YFZ350 Banshee |
| Yamaha | 1989 | YFZ350 Banshee |
| Yamaha | 1990 | YFZ350 Banshee |
| Yamaha | 1991 | YFZ350 Banshee |
| Yamaha | 1992 | YFZ350 Banshee |
| Yamaha | 1993 | YFZ350 Banshee |
| Yamaha | 1994 | YFZ350 Banshee |
| Yamaha | 1995 | YFZ350 Banshee |
| Yamaha | 1996 | YFZ350 Banshee |
| Yamaha | 1997 | YFZ350 Banshee |
| Yamaha | 1998 | YFZ350 Banshee |
| Yamaha | 1999 | YFZ350 Banshee |
| Yamaha | 2000 | YFZ350 Banshee |
| Yamaha | 2001 | YFZ350 Banshee |
| Yamaha | 2002 | YFZ350 Banshee |
| Yamaha | 2003 | YFZ350 Banshee |
| Yamaha | 2004 | YFZ350 Banshee |
| Yamaha | 2005 | YFZ350 Banshee |
| Yamaha | 2006 | YFZ350 Banshee |










