TC Bros Universal Weld-On Hardtail Kit - Custom Chopper/Bobber Frame Conversion

TC Bros Universal Weld-On Hardtail Kit - Custom Chopper/Bobber Frame Conversion

Build your dream custom motorcycle with this versatile universal hardtail kit. Designed for builders who want complete control over their build, this kit gives you the freedom to determine stretch, ground clearance, width, and geometry for virtually any motorcycle platform.

Key Features

• Universal fitment - Adaptable to nearly any motorcycle frame for maximum build flexibility
• Premium 1 1/8" diameter steel tubing - Heavy-duty .120 wall thickness (about 1/8") for exceptional strength
• Heavy-duty 3/8" thick axle plates - Cut from solid steel with integrated fender mounting tabs
• 20mm (.787") axle slots - Fits common metric axle sizes with adjustment capability
• Complete hardware package - Includes cross tubes and solid cold-rolled steel slugs for joining to stock frame tubes
• Same tubing as XS650 & CB750 kits - Proven quality used in TC Bros model-specific hardtails
• Made in USA - American craftsmanship and quality control

Specifications

• Tubing diameter: 1 1/8"
• Wall thickness: .120" (approximately 1/8")
• Axle plate thickness: 3/8"
• Axle slot width: 20mm (.787")
• Material: Premium steel construction
• Weight: 10 lbs

What's Included

• Hardtail frame tubes (1 1/8" diameter, .120 wall)
• 3/8" thick axle plates with integrated fender mounting tabs
• Cross tubes for structural support
• Solid cold-rolled steel slugs for joining to stock frame tubes

Build Possibilities

This universal kit opens up endless customization options. You control every aspect of your hardtail conversion including:

• Frame stretch and wheelbase
• Ground clearance and ride height
• Rear wheel width and tire clearance
• Rake and geometry adjustments

Perfect for unique builds on platforms like Honda CB series, Yamaha XS series, Suzuki GS series, Kawasaki KZ series, and many other vintage and modern motorcycles.

Important Build Notes

Professional fabrication required: This is a universal kit that requires custom fitting, modification, and professional welding skills. You are responsible for ensuring proper fitment, alignment, and structural integrity. All modifications are done at your own risk.

We recommend working with an experienced fabricator if you're new to frame modification. Proper welding technique and frame geometry knowledge are essential for a safe, functional hardtail conversion.

Complete Your Custom Build

Pair this universal hardtail kit with TC Bros fenders, sissy bars, bungs, and fabrication hardware to complete your one-of-a-kind custom motorcycle.