Bike- Scooter- And Chopper Projects For The Evil Genius.pdf (2025)

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Bike, Scooter, and Chopper Projects for the Evil Genius by Brad Graham and Kathy McGowan is a practical, DIY guide focused on upcycling old bicycles into custom, high-performance vehicles using accessible tools. The 2008 book features 13 distinct projects, ranging from recumbent trikes to electric scooters, designed to teach fundamental fabrication skills to "garage hackers". For more details on the projects, visit Amazon0;81;. 0;92;0;a3;

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Fabrication & Welding Tips

• Plate overlap and gussets for reinforcement at stress points.
• Use jigs to maintain alignment when cutting/welding.
• Preheat thick steel when welding; grind and inspect welds for porosity.
• Protect bearings and brakes from heat when welding near them.

Guide: Bike-, Scooter-, and Chopper Projects for the Evil Genius

Overview

A concise, safe, and practical project roadmap for building and modifying bikes, scooters, and choppers inspired by the "Evil Genius" DIY style: creative, budget-minded, and mechanically focused. Emphasis on safety, legality, and stepwise learning.

6. The Target Audience

• DIY Enthusiasts: People who enjoy "Maker" culture.
• Budget Builders: The projects are designed to be low-cost, often utilizing scrap metal and cheap hardware.
• Teenagers/Adults: The projects require the use of power tools and cutting equipment, making it suitable for older teens under supervision or adults.

Community & Support: You Are Not Alone

One of the hidden benefits of this PDF is its connection to the Atomic Zombie forums. Thousands of builders have documented their "Bike Scooter Chopper" builds. Search any problem:

• "My springer fork wobbles at speed"
• "How to mount a torque converter"
• "Best tires for a stretch chopper"

Chances are, someone in that community solved it in 2010 and posted photos. The PDF gives you the map; the forum gives you the guide. Plate overlap and gussets for reinforcement at stress points

A Word of Caution

While the book is an excellent resource, it is not without its quirks. Being an older text, some of the suggested safety standards are a bit lax by modern liability standards. The authors advocate for wearing helmets, but the "test drive" anecdotes often depict high speeds on homemade frames.

Any builder utilizing this PDF should treat it as a conceptual guide rather than a rigid bible. Modern standards for welding penetration and battery safety (specifically regarding Lithium-ion chemistry, which has evolved since the book's publication) should be rigorously applied.

Electrical & Controls

• Always include a main fuse or circuit breaker between battery and controller.
• Use correct wire gauge for current (e.g., 50 A peak → 6–8 AWG).
• Secure connectors, use shrink tubing, and isolate high-voltage lines.
• Implement fail-safes: kill switch, brake cutoffs for throttle, and temperature monitoring.