ALPINESTARS Belize Drystar® Boots - Black - US 10 2047117-10-10 Button-Head Bolt Assortment Kit Advanced MotoGP-derived SP dual density

Advanced MotoGP-derived SP dual density knuckle protector

The spacer is bolted to the engine mount and the slider puck is screwed onto it

Represents the first step in the tuning process

8:1 air/fuel ratio

Viscoelastic protective knuckle

ALPINESTARS Belize Drystar® Boots - Black - US 10 2047117-10-10 Button-Head Bolt Assortment Kit Advanced MotoGP-derived SP dual densityBlack boot upper is constructed from Polyurethane (PU) coated leather on lower medial panel and suede leather on higher medial panel, both with heat press texture for superior grip Brown boot is full grain oiled leather construction Front and rear bellows are made with lightweight microfiber for more flexibility and comfort Thermoplastic Polyurethane (TPU) shin plate and calf plate design offer support and resistance for impacts TPU shift pad made