ALPINESTARS Phenom Air Gloves - Black - 2XL 3571723-1100-2X Replacement Master Cylinder Cap Used for both 10 mm

Used for both 10 mm and 12 mm spark plug holes

Does not work with original centerstand

Replacement liner for Biltwell Bonanza helmets

Oversized crossbar for greater strength

ALPINESTARS Phenom Air Gloves - Black - 2XL 3571723-1100-2X Replacement Master Cylinder Cap Used for both 10 mmConstructed from premium soft goat leather on the palm and top hand with synthetic accordion inserts and stretch fourchettes in between the fingers Fully Perforated leather on back hand Stretch fourchettes and control fingers flex zone Cuff, thumb and landing zone padding with side hand reinforcement Ergonomic stretch insert between palm and thumb Touchscreen compatible fingertips on the index finger and thumb