Bell 4Forty Air Helmet (MIPS)Created for the privateer mountain biker seeking pro-level performance, the Bell 4Forty Air Helmet (MIPS) is packed with all the features needed to keep you safer and more dialled in to enjoy your trail ride. Bell has taken their 4Forty and evolved the design to make it better than ever. A sleek shell sees improvements to venting and better goggle compatibility as well as a magnetic buckle to make fitment easy.What hasn't changed is the superb level of protection. In the event of a crash, the EPS foam core provides shock absorption, helping to prevent injury. This protective core is fused to a durable polycarbonate shell. In combination with the inner, this system offers reliable protection against minor dings from trailside overgrowth as well as more serious impacts. MIPS (Multi-directional Impact Protection System)Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Feature-packed MTB PerformanceWhen you're in the flow of the trail or grinding it up a steep uphill, 14 large vents let air rush over your head so you don't overheat. However, when you do build up a sweat, the Sweat Guide™ system at the brow moves sweat away from the pads and prevents it from running into your eyes. Ionic+ Comfort Padding also fights the build-up of bacteria, preventing itching and maintaining freshness.A Fidlock Magnetic Buckle is a great upgrade, making it quick and easy to put on and pull off your helmet. Meanwhile, No-Twist Tri-Glides™ make sure adjustment straps are always in the right place and kept flat.Lastly, eyewear ports make space to stow sunglasses easily and for those of you who prefer goggles, integrated grippers keep your goggle straps securely in place. Float Fit™ Race (integrated with MIPS)This minimalist fit system ensures you can quickly and easily achieve the most comfortable fit of your helmet. The easy-to-turn dial features an over-moulded rubber grip so you can operate it easily, even on the fly. And it's light too - always a win for performance-focused mountain bikers. Features:Fusion In-Mould Polycarbonate ShellMIPS® (integrated with fit system)No-Twist Tri-Glides™Sweat Guide™Ionic+ Comfort Padding3-Position Adjustable VisorFloat Fit (integrated with MIPS)Goggle Gripper and Eyewear PortsFidlock Magnetic Buckle14 VentsCertified to CE EN1078Weight: 370 grams (size M/L)Shop all MIPS helmets - Click hereBuy Bell Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Bell 4Forty Air Helmet (MIPS)Created for the privateer mountain biker seeking pro-level performance, the Bell 4Forty Air Helmet (MIPS) is packed with all the features needed to keep you safer and more dialled in to enjoy your trail ride. Bell has taken their 4Forty and evolved the design to make it better than ever. A sleek shell sees improvements to venting and better goggle compatibility as well as a magnetic buckle to make fitment easy.What hasn't changed is the superb level of protection. In the event of a crash, the EPS foam core provides shock absorption, helping to prevent injury. This protective core is fused to a durable polycarbonate shell. In combination with the inner, this system offers reliable protection against minor dings from trailside overgrowth as well as more serious impacts. MIPS (Multi-directional Impact Protection System)Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Feature-packed MTB PerformanceWhen you're in the flow of the trail or grinding it up a steep uphill, 14 large vents let air rush over your head so you don't overheat. However, when you do build up a sweat, the Sweat Guide™ system at the brow moves sweat away from the pads and prevents it from running into your eyes. Ionic+ Comfort Padding also fights the build-up of bacteria, preventing itching and maintaining freshness.A Fidlock Magnetic Buckle is a great upgrade, making it quick and easy to put on and pull off your helmet. Meanwhile, No-Twist Tri-Glides™ make sure adjustment straps are always in the right place and kept flat.Lastly, eyewear ports make space to stow sunglasses easily and for those of you who prefer goggles, integrated grippers keep your goggle straps securely in place. Float Fit™ Race (integrated with MIPS)This minimalist fit system ensures you can quickly and easily achieve the most comfortable fit of your helmet. The easy-to-turn dial features an over-moulded rubber grip so you can operate it easily, even on the fly. And it's light too - always a win for performance-focused mountain bikers. Features:Fusion In-Mould Polycarbonate ShellMIPS® (integrated with fit system)No-Twist Tri-Glides™Sweat Guide™Ionic+ Comfort Padding3-Position Adjustable VisorFloat Fit (integrated with MIPS)Goggle Gripper and Eyewear PortsFidlock Magnetic Buckle14 VentsCertified to CE EN1078Weight: 370 grams (size M/L)Shop all MIPS helmets - Click hereBuy Bell Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Bell 4Forty Air Helmet (MIPS)Created for the privateer mountain biker seeking pro-level performance, the Bell 4Forty Air Helmet (MIPS) is packed with all the features needed to keep you safer and more dialled in to enjoy your trail ride. Bell has taken their 4Forty and evolved the design to make it better than ever. A sleek shell sees improvements to venting and better goggle compatibility as well as a magnetic buckle to make fitment easy.What hasn't changed is the superb level of protection. In the event of a crash, the EPS foam core provides shock absorption, helping to prevent injury. This protective core is fused to a durable polycarbonate shell. In combination with the inner, this system offers reliable protection against minor dings from trailside overgrowth as well as more serious impacts. MIPS (Multi-directional Impact Protection System)Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Feature-packed MTB PerformanceWhen you're in the flow of the trail or grinding it up a steep uphill, 14 large vents let air rush over your head so you don't overheat. However, when you do build up a sweat, the Sweat Guide™ system at the brow moves sweat away from the pads and prevents it from running into your eyes. Ionic+ Comfort Padding also fights the build-up of bacteria, preventing itching and maintaining freshness.A Fidlock Magnetic Buckle is a great upgrade, making it quick and easy to put on and pull off your helmet. Meanwhile, No-Twist Tri-Glides™ make sure adjustment straps are always in the right place and kept flat.Lastly, eyewear ports make space to stow sunglasses easily and for those of you who prefer goggles, integrated grippers keep your goggle straps securely in place. Float Fit™ Race (integrated with MIPS)This minimalist fit system ensures you can quickly and easily achieve the most comfortable fit of your helmet. The easy-to-turn dial features an over-moulded rubber grip so you can operate it easily, even on the fly. And it's light too - always a win for performance-focused mountain bikers. Features:Fusion In-Mould Polycarbonate ShellMIPS® (integrated with fit system)No-Twist Tri-Glides™Sweat Guide™Ionic+ Comfort Padding3-Position Adjustable VisorFloat Fit (integrated with MIPS)Goggle Gripper and Eyewear PortsFidlock Magnetic Buckle14 VentsCertified to CE EN1078Weight: 370 grams (size M/L)Shop all MIPS helmets - Click hereBuy Bell Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Bell 4Forty Air Helmet (MIPS)Created for the privateer mountain biker seeking pro-level performance, the Bell 4Forty Air Helmet (MIPS) is packed with all the features needed to keep you safer and more dialled in to enjoy your trail ride. Bell has taken their 4Forty and evolved the design to make it better than ever. A sleek shell sees improvements to venting and better goggle compatibility as well as a magnetic buckle to make fitment easy.What hasn't changed is the superb level of protection. In the event of a crash, the EPS foam core provides shock absorption, helping to prevent injury. This protective core is fused to a durable polycarbonate shell. In combination with the inner, this system offers reliable protection against minor dings from trailside overgrowth as well as more serious impacts. MIPS (Multi-directional Impact Protection System)Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Feature-packed MTB PerformanceWhen you're in the flow of the trail or grinding it up a steep uphill, 14 large vents let air rush over your head so you don't overheat. However, when you do build up a sweat, the Sweat Guide™ system at the brow moves sweat away from the pads and prevents it from running into your eyes. Ionic+ Comfort Padding also fights the build-up of bacteria, preventing itching and maintaining freshness.A Fidlock Magnetic Buckle is a great upgrade, making it quick and easy to put on and pull off your helmet. Meanwhile, No-Twist Tri-Glides™ make sure adjustment straps are always in the right place and kept flat.Lastly, eyewear ports make space to stow sunglasses easily and for those of you who prefer goggles, integrated grippers keep your goggle straps securely in place. Float Fit™ Race (integrated with MIPS)This minimalist fit system ensures you can quickly and easily achieve the most comfortable fit of your helmet. The easy-to-turn dial features an over-moulded rubber grip so you can operate it easily, even on the fly. And it's light too - always a win for performance-focused mountain bikers. Features:Fusion In-Mould Polycarbonate ShellMIPS® (integrated with fit system)No-Twist Tri-Glides™Sweat Guide™Ionic+ Comfort Padding3-Position Adjustable VisorFloat Fit (integrated with MIPS)Goggle Gripper and Eyewear PortsFidlock Magnetic Buckle14 VentsCertified to CE EN1078Weight: 370 grams (size M/L)Shop all MIPS helmets - Click hereBuy Bell Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Bell 4Forty Air Helmet (MIPS)Created for the privateer mountain biker seeking pro-level performance, the Bell 4Forty Air Helmet (MIPS) is packed with all the features needed to keep you safer and more dialled in to enjoy your trail ride. Bell has taken their 4Forty and evolved the design to make it better than ever. A sleek shell sees improvements to venting and better goggle compatibility as well as a magnetic buckle to make fitment easy.What hasn't changed is the superb level of protection. In the event of a crash, the EPS foam core provides shock absorption, helping to prevent injury. This protective core is fused to a durable polycarbonate shell. In combination with the inner, this system offers reliable protection against minor dings from trailside overgrowth as well as more serious impacts. MIPS (Multi-directional Impact Protection System)Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Feature-packed MTB PerformanceWhen you're in the flow of the trail or grinding it up a steep uphill, 14 large vents let air rush over your head so you don't overheat. However, when you do build up a sweat, the Sweat Guide™ system at the brow moves sweat away from the pads and prevents it from running into your eyes. Ionic+ Comfort Padding also fights the build-up of bacteria, preventing itching and maintaining freshness.A Fidlock Magnetic Buckle is a great upgrade, making it quick and easy to put on and pull off your helmet. Meanwhile, No-Twist Tri-Glides™ make sure adjustment straps are always in the right place and kept flat.Lastly, eyewear ports make space to stow sunglasses easily and for those of you who prefer goggles, integrated grippers keep your goggle straps securely in place. Float Fit™ Race (integrated with MIPS)This minimalist fit system ensures you can quickly and easily achieve the most comfortable fit of your helmet. The easy-to-turn dial features an over-moulded rubber grip so you can operate it easily, even on the fly. And it's light too - always a win for performance-focused mountain bikers. Features:Fusion In-Mould Polycarbonate ShellMIPS® (integrated with fit system)No-Twist Tri-Glides™Sweat Guide™Ionic+ Comfort Padding3-Position Adjustable VisorFloat Fit (integrated with MIPS)Goggle Gripper and Eyewear PortsFidlock Magnetic Buckle14 VentsCertified to CE EN1078Weight: 370 grams (size M/L)Shop all MIPS helmets - Click hereBuy Bell Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Bell 4Forty Air Helmet (MIPS)Created for the privateer mountain biker seeking pro-level performance, the Bell 4Forty Air Helmet (MIPS) is packed with all the features needed to keep you safer and more dialled in to enjoy your trail ride. Bell has taken their 4Forty and evolved the design to make it better than ever. A sleek shell sees improvements to venting and better goggle compatibility as well as a magnetic buckle to make fitment easy.What hasn't changed is the superb level of protection. In the event of a crash, the EPS foam core provides shock absorption, helping to prevent injury. This protective core is fused to a durable polycarbonate shell. In combination with the inner, this system offers reliable protection against minor dings from trailside overgrowth as well as more serious impacts. MIPS (Multi-directional Impact Protection System)Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Feature-packed MTB PerformanceWhen you're in the flow of the trail or grinding it up a steep uphill, 14 large vents let air rush over your head so you don't overheat. However, when you do build up a sweat, the Sweat Guide™ system at the brow moves sweat away from the pads and prevents it from running into your eyes. Ionic+ Comfort Padding also fights the build-up of bacteria, preventing itching and maintaining freshness.A Fidlock Magnetic Buckle is a great upgrade, making it quick and easy to put on and pull off your helmet. Meanwhile, No-Twist Tri-Glides™ make sure adjustment straps are always in the right place and kept flat.Lastly, eyewear ports make space to stow sunglasses easily and for those of you who prefer goggles, integrated grippers keep your goggle straps securely in place. Float Fit™ Race (integrated with MIPS)This minimalist fit system ensures you can quickly and easily achieve the most comfortable fit of your helmet. The easy-to-turn dial features an over-moulded rubber grip so you can operate it easily, even on the fly. And it's light too - always a win for performance-focused mountain bikers. Features:Fusion In-Mould Polycarbonate ShellMIPS® (integrated with fit system)No-Twist Tri-Glides™Sweat Guide™Ionic+ Comfort Padding3-Position Adjustable VisorFloat Fit (integrated with MIPS)Goggle Gripper and Eyewear PortsFidlock Magnetic Buckle14 VentsCertified to CE EN1078Weight: 370 grams (size M/L)Shop all MIPS helmets - Click hereBuy Bell Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Bell 4Forty Air Helmet (MIPS)Created for the privateer mountain biker seeking pro-level performance, the Bell 4Forty Air Helmet (MIPS) is packed with all the features needed to keep you safer and more dialled in to enjoy your trail ride. Bell has taken their 4Forty and evolved the design to make it better than ever. A sleek shell sees improvements to venting and better goggle compatibility as well as a magnetic buckle to make fitment easy.What hasn't changed is the superb level of protection. In the event of a crash, the EPS foam core provides shock absorption, helping to prevent injury. This protective core is fused to a durable polycarbonate shell. In combination with the inner, this system offers reliable protection against minor dings from trailside overgrowth as well as more serious impacts. MIPS (Multi-directional Impact Protection System)Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Feature-packed MTB PerformanceWhen you're in the flow of the trail or grinding it up a steep uphill, 14 large vents let air rush over your head so you don't overheat. However, when you do build up a sweat, the Sweat Guide™ system at the brow moves sweat away from the pads and prevents it from running into your eyes. Ionic+ Comfort Padding also fights the build-up of bacteria, preventing itching and maintaining freshness.A Fidlock Magnetic Buckle is a great upgrade, making it quick and easy to put on and pull off your helmet. Meanwhile, No-Twist Tri-Glides™ make sure adjustment straps are always in the right place and kept flat.Lastly, eyewear ports make space to stow sunglasses easily and for those of you who prefer goggles, integrated grippers keep your goggle straps securely in place. Float Fit™ Race (integrated with MIPS)This minimalist fit system ensures you can quickly and easily achieve the most comfortable fit of your helmet. The easy-to-turn dial features an over-moulded rubber grip so you can operate it easily, even on the fly. And it's light too - always a win for performance-focused mountain bikers. Features:Fusion In-Mould Polycarbonate ShellMIPS® (integrated with fit system)No-Twist Tri-Glides™Sweat Guide™Ionic+ Comfort Padding3-Position Adjustable VisorFloat Fit (integrated with MIPS)Goggle Gripper and Eyewear PortsFidlock Magnetic Buckle14 VentsCertified to CE EN1078Weight: 370 grams (size M/L)Shop all MIPS helmets - Click hereBuy Bell Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Bell has taken their 4Forty and evolved the design to make it better than ever. A sleek shell sees improvements to venting and better goggle compatibility as well as a magnetic buckle to make fitment easy. What hasn't changed is the superb level of protection. In the event of a crash, the EPS foam core provides shock absorption, helping to prevent injury. This protective core is fused to a durable polycarbonate shell. In combination with the inner, this system offers reliable protection against minor dings from trailside overgrowth as well as more serious impacts. MIPS (Multi-directional Impact Protection System) Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air. The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head. Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head. Shop All MIPS Helmets Click Here Feature-packed MTB Performance When you're in the flow of the trail or grinding it up a steep uphill, 14 large vents let air rush over your head so you don't overheat. However, when you do build up a sweat, the Sweat Guide™ system at the brow moves sweat away from the pads and prevents it from running into your eyes. Ionic+ Comfort Padding also fights the build-up of bacteria, preventing itching and maintaining freshness. A Fidlock Magnetic Buckle is a great upgrade, making it quick and easy to put on and pull off your helmet. Meanwhile, No-Twist Tri-Glides™ make sure adjustment straps are always in the right place and kept flat. Lastly, eyewear ports make space to stow sunglasses easily and for those of you who prefer goggles, integrated grippers keep your goggle straps securely in place. Float Fit™ Race (integrated with MIPS) This minimalist fit system ensures you can quickly and easily achieve the most comfortable fit of your helmet. The easy-to-turn dial features an over-moulded rubber grip so you can operate it easily, even on the fly. And it's light too - always a win for performance-focused mountain bikers.
Trail LifeFeatures:- Rotational Energy Management- MIPS® (integrated with fit system)- 3-Position Adjustable Visor- Goggle Gripper- Eyewear Ports- Fidlock® Magnetic Buckle- No-Twist Tri-Glides™- Sweat Guide™- Ionic+™ Comfort PaddingConstruction- Fusion In-Mold Polycarbonate ShellFit System- Float Fit™(integrated with MIPS)Weight- 360 grams (size M)
The 4Forty Air MIPS is equipped with pro-level features yet designed with the privateer in mind. With a sleek new shell design and 3-position visor, the benefits aren t just visibly rad but functionally significant for increased air ventilation, effective sweat management, and better goggle compatibility. Bell s Float Fit system, built-in Sweat Guide and anti-microbial Ionic+ padding ensures all-day comfort, while integrated MIPS and extended hard-shell coverage helps you stay committed in all shred conditions. Upgrades like eyewear ports, a Fidlock magnetic buckle, and premium straps make the 4Forty Air MIPS your go-to for daily trail riding life.Rotational Energy ManagementMIPS (integrated with fit system)3-Position Adjustable VisorGoggle GripperEyewear PortsFidlock Magnetic BuckleNo-Twist Tri-Glides Sweat Guide Ionic+ Comfort PaddingConstruction: Fusion In-Mold polycarbonate shell - A process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet.Fit System: Float Fit - A minimalist, lightweight fit system with an easy-to-turn rubber over moulded dial for adjustments. No-Twist Tri-Glides: Quick-adjust fasteners that help keep straps flat and properly positionedWeight: 360 grams (size M)Certifications: CPSC Bicycle*, CE EN1078
The 4Forty Air MIPS is equipped with pro-level features yet designed with the privateer in mind. With a sleek new shell design and 3-position visor, the benefits aren t just visibly rad but functionally significant for increased air ventilation, effective sweat management, and better goggle compatibility. Bell s Float Fit system, built-in Sweat Guide and anti-microbial Ionic+ padding ensures all-day comfort, while integrated MIPS and extended hard-shell coverage helps you stay committed in all shred conditions. Upgrades like eyewear ports, a Fidlock magnetic buckle, and premium straps make the 4Forty Air MIPS your go-to for daily trail riding life.Rotational Energy ManagementMIPS (integrated with fit system)3-Position Adjustable VisorGoggle GripperEyewear PortsFidlock Magnetic BuckleNo-Twist Tri-Glides Sweat Guide Ionic+ Comfort PaddingConstruction: Fusion In-Mold polycarbonate shell - A process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet.Fit System: Float Fit - A minimalist, lightweight fit system with an easy-to-turn rubber over moulded dial for adjustments. No-Twist Tri-Glides: Quick-adjust fasteners that help keep straps flat and properly positionedWeight: 360 grams (size M)Certifications: CPSC Bicycle*, CE EN1078
The 4Forty Air MIPS is equipped with pro-level features yet designed with the privateer in mind. With a sleek new shell design and 3-position visor, the benefits aren t just visibly rad but functionally significant for increased air ventilation, effective sweat management, and better goggle compatibility. Bell s Float Fit system, built-in Sweat Guide and anti-microbial Ionic+ padding ensures all-day comfort, while integrated MIPS and extended hard-shell coverage helps you stay committed in all shred conditions. Upgrades like eyewear ports, a Fidlock magnetic buckle, and premium straps make the 4Forty Air MIPS your go-to for daily trail riding life.Rotational Energy ManagementMIPS (integrated with fit system)3-Position Adjustable VisorGoggle GripperEyewear PortsFidlock Magnetic BuckleNo-Twist Tri-Glides Sweat Guide Ionic+ Comfort PaddingConstruction: Fusion In-Mold polycarbonate shell - A process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet.Fit System: Float Fit - A minimalist, lightweight fit system with an easy-to-turn rubber over moulded dial for adjustments. No-Twist Tri-Glides: Quick-adjust fasteners that help keep straps flat and properly positionedWeight: 360 grams (size M)Certifications: CPSC Bicycle*, CE EN1078