Trek Powerfly 4 Neo Gold A core philosophy for Werner

A core philosophy for Werner

All-new ultra-soft rubber formula

Nytrolite Foam

secure tubing experience for all ages

Carbon-Infused PA Construction

Trek Powerfly 4 Neo Gold A core philosophy for WernerPowerfly 4 is our most affordable electric mountain bike. It's built with parts that hold up, like a smooth shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user friendly Removable Integrated Battery (RIB) system that's fully encased in the frame yet doesn't require tools for removal. This bike expands your boundaries and lets you travel to destinations you never thought you'd reach on a mountain bike. Size small wheels: