Street Bike Back Protection

Back protection isn't negotiable when you're pushing limits on the track or road. The ALPINESTARS Nucleon Plasma Full Back Insert combines lightweight impact absorption with genuine breathability—so you get armor-grade protection without sacrificing...

Impact protection is non-negotiable for serious riders, and the ALPINESTARS Nucleon Plasma Full Back Insert delivers exactly that—without the bulk or heat buildup that compromises performance. Engineered with Nucleon Plasma Technology, this back...

Whether you're logging track miles or pushing limits on the street, spinal protection isn't negotiable—and the ALPINESTARS Nucleon Plasma Back Protector delivers certified impact dispersal without sacrificing mobility or airflow. Built with a semi-rigid...

Back protection is non-negotiable in motorsports and high-speed riding—impacts happen fast, and your spine can't afford compromise. The ALPINESTARS Nucleon Plasma delivers race-grade impact dispersion in a lightweight package that won't slow you down,...

The ALPINESTARS Nucleon Plasma Back Protector delivers race-grade spinal protection without the bulk or heat buildup that sidelines riders during intense sessions. Its semi-rigid thermoplastic construction absorbs impact energy efficiently while the...

If you're serious about track days or road racing, back protection isn't optional—it's essential. The ALPINESTARS Nucleon Plasma Back Protector delivers impact protection without sacrificing comfort or breathability, letting you focus on your performance...

Back protection isn't optional when you're pushing performance limits on track or street. The ALPINESTARS Nucleon Plasma combines lightweight composite engineering with genuine impact dispersion to keep you protected without the bulk or heat buildup that...

The ALPINESTARS Nucleon KR-3 Back Protector delivers impact absorption where it matters most—your spine—without the bulk or heat buildup that compromises comfort during extended riding sessions. Its layered foam construction and convex shell design work...

Hip protection is non-negotiable when you're serious about riding—impacts to the hip flexors and pelvis can sideline you for months. The ALPINESTARS Nucleon KR-H combines engineered impact absorption with a design that won't restrict your mobility or add...

High-speed crashes demand protection that won't slow you down. The ALPINESTARS Nucleon KR-Cell Back Protection Insert delivers race-proven impact absorption in a design so lightweight you'll forget you're wearing it. Whether you're logging track days or...

Back injuries can sideline a rider permanently, which is why proper protection isn't optional—it's essential. The ALPINESTARS Nucleon KR-Cell delivers impact absorption and spinal support without the bulk or heat buildup that compromises mobility and...

Back protection isn't negotiable in motorsports—high-speed crashes generate forces that demand serious impact absorption. The ALPINESTARS Nucleon KR-Cell combines a triple-layer polymeric construction with ergonomic contouring to shield your spine and...

Spinal injuries can end a riding career—the Nucleon KR-3 is engineered to prevent that outcome. This back protector combines a rigid convex shell with adaptive soft-foam technology, absorbing impact energy before it reaches your vertebrae. Whether you're...

Serious riders demand back protection that adapts to their body, not the other way around. The ALPINESTARS Nucleon KR-3 combines impact-absorbing viscoelastic foam with a flexible lattice structure, delivering real spinal protection without the bulk or...

Spinal injuries can end a racing career before it starts. The ALPINESTARS Nucleon KR-3 delivers multi-directional impact absorption with a convex hard shell that protects your spine while maintaining the flex and breathability you need to stay...

Back protection shouldn't force you to choose between safety and mobility. The ALPINESTARS Nucleon KR-Cell delivers impact absorption and force dispersion without restrictive bulk, allowing full range of motion while keeping your spine protected during...

Serious riders know that back protection isn't optional—it's essential. The ALPINESTARS Nucleon KR-Cell Back Protector delivers multi-layer impact absorption and ergonomic support without the bulk or restriction, so you can focus on the ride. Built with...

The lower spine and tailbone endure significant impact during aggressive riding, and standard back protectors often leave this vulnerable area exposed. The ALPINESTARS Nucleon KR-TB Tailbone Protector fills that gap with targeted, impact-absorbing...

Whether you're logging track days, commuting on two wheels, or pushing limits on the street, spinal protection shouldn't compromise mobility or comfort. The ALPINESTARS Nucleon KR-Cell Back Protector delivers impact absorption across three contact points...

The ALPINESTARS Nucleon KR-1 Cell Back Protector is engineered for riders who demand serious impact protection without sacrificing mobility or breathability. Its adaptive polymer construction and flexion grooves allow full range of motion through corners...