Motorcycle Helmet is a character enhancement card in Back 4 Blood. It is a Defense Type Card with Discipline 
Affinity. The card can be used in both PvE and PvP game modes.
Card Ability
+15% Damage Resistance
+10 Health
DISABLES: Aim Down Sights
Motorcycle Helmet is a card with one the most overall defensive stats in the game but it comes at the costs of disabling aiming down sights.
Players who use this card will play as either a melee tank use accuracy bonus cards to offset its negative effect.
Card Playstyle
The Motorcycle Helmet is an absolute melee tank card. Players that equip the Motorcycle Helmet will want to engage Ridden in melee range.
The best primary weapon for this setup will be the shotgun. Fortunately, the shotgun does not have to be aimed down its sights to be effective.
Players can also load up on accuracy bonus cards to get pixel-perfect hip fire from their weapons.
Card Synergies
Motorcycle Helmet has synergy with cards that help become a more effective melee tank. This includes increasing defense, healing, and increasing melee attack effectiveness.
Face Your Fears – Face Your Fears gives 2 Temporary Health for each melee kill letting you absorb more damage.
Vanguard – Similar to Face Your Fears, Vanguard increases Temporary Health by 1 for each melee kill but it also gives it to your nearby teammate. A great way to increase the survivability of the whole team.
Adrenaline Fueled – Face Your Fears and Vanguard both need stamina to fuel melee damage. Adrenaline Fueled will keep player stamina up to melee almost indefinitely by giving 10 stamina each melee kill with another 10 stamina over 5 seconds.
Spiky Bits – With increased melee damage and damage resistance while holding a melee weapon, this is the perfect card to any melee tank.
Battle Lust – Similar to Face Your Fears, Battle Lust heals 2 health for each melee kill.
Scar Tissue – Simple, but effective enhancement that reduces all damage from Ridden by 1.