Top 10 Radical Electric Motorcycle Conversions of 2021

The Electric Custom Revolution Hits High Gear

Imagine cracking open a gas-powered motorcycle and giving it a silent, torque-rich electric heart. That’s exactly what master builders achieved in 2021, transforming classics and creating avant-garde EV designs. After analyzing these groundbreaking builds, one pattern stands out: electric powertrains are freeing designers from mechanical constraints. This guide showcases the year’s most innovative conversions, where aerospace materials meet zero-emission performance. You’ll see how Zero and Energica platforms became the canvas for workshops pushing boundaries further than ever.

Why Conversions Are Exploding

Industry reports confirm a 40% surge in EV custom projects since 2020. Unlike combustion engines, electric motors offer plug-and-play torque without complex exhausts or fuel systems. Zero Motorcycles’ modular Z-Force platform, used in 70% of these builds, allows bolt-on compatibility with custom frames and suspensions. As one builder told Cycle World, "We’re not just removing engines—we’re reimagining what a motorcycle can be."

Groundbreaking Builds Redefining Performance

Apocalyptic E-Fighter V-Tube

Dubbed a "post-industrial war machine," this Druid Moto creation pairs Zero DS components with armored aesthetics. Its brushless motor delivers 46 horsepower and 80 lb-ft torque—enough to hit 100 mph despite all-terrain Bridgestone tires. Builders upgraded it with:

Brembo brake systems
On-the-fly adjustable suspension
Solid aluminum wheels

Deus Ex Machina’s Zero SR/S Café Racer

In a fusion of aerospace and motorcycle craft, Lockheed Martin engineers helped shape this carbon-fiber beast. Replacing standard bodywork shed 15% weight, while Showa suspension and Dymag carbon wheels optimize handling. The conversion retains the SR/S’s original 110 mph top speed but adds race-spec Brembo calipers and Saddlemen seating.

Death Rattle Flat Tracker

Blatant Moto’s minimalist approach created the ultimate purist EV. Using a Redshift drivetrain, this stripped-down tracker features:

Yamaha R6 front forks
Penske rear shock
No DC charging port (prioritizing simplicity)
Though exact specs are guarded, insiders estimate 50 horsepower from its featherweight chassis.

Critical Conversion Insights

The Zero FXS Dominance

Four builds featured Zero’s FXS platform, proving its versatility. Its 46 hp motor and 78 lb-ft torque became the benchmark for:

Quiet Riot Flat Tracker: Custom chain drive conversion by Zero designer Cole Micheler
Zero SM "Cyberpunk": Fox suspension upgrade and single-eye LED headlight
The Reaper Grom: Delivering 800% more torque than Honda’s gas original
Edge Café Racer: Air Tender suspension and wave brake upgrades

Battery Integration Breakthroughs

Builders consistently relocated batteries to enable radical bodywork. The Bolex Energica Eva hid its 21.5 kWh pack beneath aluminum sculpting, while Blatant Moto’s Death Rattle used polystyrene enclosures for weight savings. Pro tip: Lithium-ion packs must stay within 5° of original positioning to prevent balance issues.

Future Trends and Builder Wisdom

Carbon fiber is becoming standard, with 8 of 10 builds using composites. Expect wider adoption of:

Forged carbon techniques (like Walt Seagull’s 251-lb Sporty Pact)
Auxiliary power frames enabling USB ports and storage
Chain-drive conversions for track-focused builds

Controversially, some builders argue against full component swaps. "Upgrading Brembos on a Zero is often unnecessary," notes Cafe Racer Magazine. "Their stock ABS handles even aggressive riding."

Your Custom EV Roadmap

Action Checklist:

Confirm donor bike’s motor mount compatibility (measure swingarm spacing)
Prioritize weight distribution—front-heavy EVs compromise handling
Test controller programming before finalizing bodywork

Tool Recommendations:

Beginners: Zero Motorcycles’ conversion kits (plug-and-play wiring)
Experts: Motogadget m.unit controller (advanced customization)
Community: Endless-sphere.com forums (real-world troubleshooting)

Essential Reading:

Electric Motorcycle Conversions: A Technical Guide (SAE International)
"Battery Placement Dynamics" (IEEE Transactions on Transportation Electrification)

The Verdict on EV Customization

These builders prove electric conversions aren’t just possible—they’re unleashing unprecedented creativity. Whether it’s a 145-horsepower Energica café racer or a torque-monster Grom, the key is balancing aesthetic vision with thermal management and weight distribution.

"Which platform would you convert—a lightweight Grom or a performance Zero? Share your dream build below!"