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Storage

The Storage upgrade adds saddlebags so the Drifter Bike can carry extra ammo. Saddlebags I costs 800 credits at Trust level 2. It lets you restock at the bike in the middle of a fight instead of riding back to camp.

Class: Other

Good to know

You restock ammo from the bike instead of a camp.
Camp mechanics sell it, and better tiers unlock as camp Trust rises.

What it changes in practice

Long fights against Hordes and big camps drain ammo fast. With saddlebags, you top up at the bike and go back in.

When to buy it

Buy it before your first big Horde fights. Park the bike close to the fight so the saddlebags are in reach.

More other

Other
Derelict Vehicles
Derelict Vehicles are the dead cars and trucks across Oregon, and nearly all of them can be searched. They give crafting parts, ammo, fuel and Medkits depending on the type. Loot them as you ride, and use them as cover.
Other
Engine
The Engine upgrade raises the Drifter Bike's top speed and acceleration. Engine I costs 1,200 credits at Trust level 1, and higher tiers add durability. It is one of the first parts worth buying, since speed is how you escape Hordes.
Other
Exhaust
The Exhaust upgrade quiets the Drifter Bike so you can ride near enemies without being spotted. Exhaust I costs 600 credits at Trust level 1. Buy it early if you like stealth approaches to camps and nests.
Other
Forks
The Forks upgrade helps the Drifter Bike absorb damage. Like the frame and rear suspension, it means fewer stops to patch the bike with scrap. Buy it after the speed and fuel parts.