Parts

Premium Raw Steel Ribbed Bobber Fenders for Custom Motorcycles

TC Bros raw steel ribbed bobber fenders combine classic styling with modern manufacturing quality. These distinctive ribbed fenders feature traditional bobber styling with integrated ribs that add both structural strength and vintage aesthetic appeal. Available in two widths to accommodate different tire sizes and build styles.

Available Widths:

• 5" Wide - Ideal for narrower tires and classic bobber proportions
• 6" Wide - Accommodates wider tires while maintaining bobber styling

Key Features:

• Ribbed Design - Classic ribbed pattern adds strength and vintage styling
• Raw Steel Construction - Durable steel ready for your custom finish
• Bobber Styling - Traditional short fender design for authentic bobber look
• Two Width Options - Choose 5" or 6" to match your tire size
• Quality Construction - Precision-manufactured for consistent quality
• Ready to Finish - Raw steel accepts paint, powder coat, or patina
• Professional Quality - Trusted by custom builders and fabricators

Choosing the Right Width:

5" Wide: The 5" width is perfect for classic bobber builds with narrower tires (typically 130-150mm width). This narrower fender maintains traditional bobber proportions and works beautifully on vintage-inspired builds, cafe racers, and classic customs. The compact width provides adequate tire coverage while keeping the minimalist bobber aesthetic.

6" Wide: The 6" width accommodates wider modern tires (typically 150-180mm width) while maintaining authentic bobber styling. This wider option is ideal for builds using contemporary tire sizes or when you want slightly more coverage. Perfect for modern bobbers, street trackers, and customs with wider rear rubber.

Ribbed Design Benefits:

The integrated ribs serve both functional and aesthetic purposes. Structurally, the ribs add rigidity to the fender, reducing flex and vibration. Visually, the ribbed pattern creates classic vintage styling that complements period-correct builds and adds distinctive character to any custom motorcycle.

Specifications:

• Material: Raw Steel
• Style: Bobber (short rear fender)
• Design: Ribbed
• Widths: 5" or 6"
• Finish: Raw steel (ready for paint, powder coat, or patina)

Perfect For:

• Bobber builds and conversions
• Chopper customs
• Cafe racer and tracker builds
• Vintage motorcycle restorations
• Custom motorcycle projects
• Hardtail conversions
• Period-correct builds

Mounting & Installation:

These bobber fenders require mounting hardware and struts (sold separately). For professional fender mounting, check out our TC Bros weld-on steel mounting tabs - available in 7 different styles to accommodate various mounting configurations and frame designs. These precision-cut tabs provide secure mounting points for fender struts and ensure a professional installation.

Installation recommendations:

• Measure your tire width to select correct fender width
• Verify clearance for tire, suspension travel, and chain/belt
• Use appropriate fender struts and mounting hardware
• Finish fender before final installation to prevent rust
• Ensure adequate tire clearance at full suspension compression

Finishing Options:

Raw steel fenders offer maximum flexibility for your custom finish:

• Paint: Prime and paint in any color to match your build
• Powder Coat: Durable powder coating in various colors and finishes
• Chrome or Polish: Send out for chrome plating or polish to a mirror finish
• Patina: Allow natural patina to develop for authentic vintage appearance
• Clear Coat: Seal raw steel with clear coat for industrial look

Each TC Bros ribbed bobber fender is precision-manufactured to ensure consistent quality and authentic vintage styling for your custom motorcycle build.

Premium 1" Motorcycle Throttles for Custom Builds

TC Bros precision-engineered motorcycle throttles are essential components for custom motorcycle builds featuring 1" handlebars. These high-quality throttle assemblies provide smooth, reliable throttle operation and are available in multiple configurations to match your bike's cable setup and aesthetic preferences.

Available Options:

Cable Type: Single Cable or Dual Cable
Finish: Black or Polished

• Single Cable - Black - Sleek black finish for single cable applications
• Single Cable - Polished - Classic polished finish for single cable setups
• Dual Cable - Black - Black finish for dual cable (push-pull) applications

Key Features:

• Precision Engineered - Designed for smooth, reliable throttle operation
• 1" Diameter - Designed specifically for 1" handlebars
• Quality Construction - Durable materials for long-lasting performance
• Multiple Configurations - Choose single or dual cable based on your bike's setup
• Professional Quality - Manufactured to TC Bros' exacting standards
• Easy Installation - Direct replacement for stock throttle assemblies

Choosing the Right Configuration:

Single Cable vs. Dual Cable:

• Single Cable: Uses one cable to open the throttle, with a return spring to close it. Common on older motorcycles and many custom builds. Simpler installation with fewer cables to route.
• Dual Cable (Push-Pull): Uses two cables - one to open the throttle and one to close it. Provides more positive throttle control and is required on many modern motorcycles. Offers smoother operation and better safety.

Black vs. Polished:

• Black: Sleek black finish complements blacked-out builds and contemporary custom motorcycles. Provides a modern, stealthy appearance.
• Polished: Classic polished finish works beautifully with traditional custom builds, cafe racers, and bikes featuring chrome or polished components.

Specifications:

• Handlebar Size: 1" (25.4mm)
• Cable Types: Single Cable or Dual Cable (Push-Pull)
• Finish Options: Black or Polished
• Precision-engineered for smooth operation

Perfect For:

• Custom motorcycle builds with 1" handlebars
• Chopper and bobber conversions
• Cafe racer and tracker builds
• Replacing worn or damaged throttle assemblies
• Upgrading to premium components
• Matching your bike's color scheme and cable configuration

Installation Notes:

Ensure you select the correct cable type (single or dual) based on your motorcycle's throttle cable configuration. Proper cable routing and adjustment is critical for safe, smooth throttle operation. Professional installation is recommended if you're not experienced with throttle system maintenance.

Important: Always verify your throttle returns to closed position smoothly and completely after installation. Test throttle operation thoroughly before riding.

Each TC Bros motorcycle throttle is precision-manufactured to ensure reliable performance and long service life on your custom motorcycle.

Premium TC Bros Threaded Steel Bungs - Standard Style

TC Bros standard threaded steel bungs are essential fabrication components for custom motorcycle builds. These precision-manufactured bungs provide secure, threaded mounting points for gas tanks, seat pans, fenders, battery boxes, and countless other components. Available in two thread sizes and three lengths to accommodate various mounting applications.

Available Options:

Thread Sizes: 5/16-18 or 3/8-16
Lengths: 1/2", 1", or 1.5"

• 5/16-18 Thread / 1/2" Long - Compact size for tight spaces and lighter components
• 5/16-18 Thread / 1" Long - Standard length for most applications
• 5/16-18 Thread / 1.5" Long - Extended length for thicker materials or additional thread engagement
• 3/8-16 Thread / 1/2" Long - Larger thread for heavier components in compact spaces
• 3/8-16 Thread / 1" Long - Most popular size for general fabrication
• 3/8-16 Thread / 1.5" Long - Maximum strength for heavy-duty applications

Key Features:

• Precision Threading - Clean, accurate threads for reliable fastener engagement
• Standard Design - Flat base for welding to flat surfaces and tubing
• Multiple Sizes - Six configurations to match your specific needs
• Quality Steel Construction - Durable materials for long-lasting performance
• Professional Quality - Manufactured to TC Bros' exacting standards
• Versatile Applications - Suitable for countless mounting scenarios

Common Applications:

• Gas tank mounting
• Seat pan mounting
• Fender mounting
• Battery box mounting
• Tool box mounting
• Sissy bar mounting
• Luggage rack mounting
• Accessory mounting points
• Custom fabrication projects

Other Fabrication Hardware Options:

Depending on your specific application, you might need a different style of bung or mounting solution:

Alternative Bung Styles:

• Coped Steel Bungs - Feature a curved notch that fits flush on round tubing for a professional, finished appearance. Perfect when welding to frame tubes or round bars.
• Counterbore Steel Bungs - Designed specifically for socket head bolts with a recessed counterbore that allows the bolt head to sit flush. Ideal for clean, low-profile installations.
• Radius Style Steel Bungs - Feature a radiused base for improved weld penetration and strength. Best choice for high-stress applications.

Non-Threaded Mounting Solutions:

• Weld-On Steel Mounting Tabs - When you need to mount brackets, fenders, or accessories without threaded fasteners, our mounting tabs provide secure weld-on mounting points in 7 different styles.

Specifications:

• Material: Steel
• Thread Sizes: 5/16-18 or 3/8-16
• Lengths: 1/2", 1", or 1.5"
• Style: Standard (flat base)
• Finish: Raw steel (ready for welding and finishing)

Perfect For:

• Custom motorcycle frame building
• Chopper and bobber builds
• Cafe racer and tracker conversions
• Vintage motorcycle restorations
• Accessory installations
• Frame modifications and upgrades
• Professional fabrication shops
• DIY custom builders

Installation Notes:

These bungs are designed to be welded onto your motorcycle frame, gas tank, fenders, or other components at the desired mounting location. Proper positioning and alignment are critical for correct fitment and function. We recommend:

• Test-fit components before welding bungs in place
• Ensure proper clearance for fasteners and moving parts
• Use appropriate welding techniques for your material
• Clean and prep mounting area before welding
• Paint or powder coat after installation to prevent rust
• Use correct thread size for your application (5/16-18 for lighter components, 3/8-16 for heavier)

Professional installation is recommended if you're not experienced with welding and frame fabrication. Each TC Bros steel bung is precision-manufactured to exacting standards for reliable performance on your custom motorcycle build.

mo.switch basic LED 3-button

Triple Tree Mirror Mount - 39mm

If you're looking to clean up your handlebars and still run a mirror, we have the solution for you. This kit eliminates any handlebar mirror clamp and allows you to run it directly to your top triple tree on a 39mm front end. The 39mm kit requires an adapter piece which is why the subtle price increase. The mirror stems and adapters are made from stainless steel.

The mirrors are 3" in diameter and come in a chrome finish

39mm Thread: 3/8-16

The Prism Supply Co. Super Prism Throttle Assembly is a precision-machined, polished aluminum throttle built for custom Harley-Davidson builds. Designed for a clean, minimal look with reliable 1/4 turn action and full compatibility with stock HD throttle cables.

What's Included

• Polished aluminum throttle housing
• 1/4 turn action with built-in internal stops
• 1" aluminum throttle sleeve
• All necessary mounting hardware
• Throttle Lock Screw

Compatibility

• Designed for use with all stock HD throttle cables with snap ring
• Includes a barrel end to cut the cable to your desired length

Recommended Add-Ons

For a designed fit, pair this throttle with the Prism Supply Co. Throttle Cable. The Clear Throttle Cover is also available and sold separately.

1" Lane Splitter Handlebars 

Our 1" Lane Splitter Handlebars are made from 1 inch OD x 0.109" wall premium steel tubing. They are CNC mandrel bent for ultra-smooth bends and flawless symmetry. The 9.5" rise and 3" pullback result in a comfortable riding position, while the angled uprights give a one of a kind look! These bars fit stock cables, brake lines, and wiring on most Harley models.

Available in two configurations: "Smooth" for custom applications or pre-1982 controls, or "Dimple" for 1982-newer Harley controls.

Available in two finishes: Triple chrome plated, or durable satin black powdercoat.

Note: please see photos for dimensions and specifications to confirm fitment of your motorcycle.

Does not fit throttle by wire models.

Smooth configuration bars may also be used on many Triumph models or Metric Cruisers with 1" diameter stock handlebars.

Dyna Mid Controls Kit Fits

Customize and upgrade the look and feel of your Harley Davidson Dyna with a high quality USA Made bolt on mid controls kit from TC Bros. Designed to fit all 1991-2017 Dyna Models (see fitment notes below). These controls not only look great, but are much higher performing than factory mid controls. The foot peg position is slightly higher and much closer to the engine, providing for increased lean angle before the pegs will contact the pavement. Detailed mounting instructions & quality hardware included to ensure trouble-free installation. 

Features:

• Footpeg locations allow for greater lean angle.
• CNC machined 6061 aluminum folding foot pegs with non-slip knurled finish. 
• Precision fit bronze bushing pivots for smooth operation.
• Investment cast steel mounting brackets for rigidity.
• Durable black powdercoat finish.
• Proudly made in the USA.
• Detailed mounting instructions and hardware included.
• CNC Machined, stainless steel brake linkage rod.
• Replacement parts and tech support after the sale.

Fitment Notes:

• Kit includes everything required to install on a 1991-2017 Dyna that came with factory Harley mid controls. If you have a model that came with factory forward controls, additional hardware is required for install. Cost and difficulty varies greatly depending on year & model. For example, 2006-2017 forward controls models are most costly to convert because they require removal/installation of inner and outer primary. Please see table in the install instructions for the list of additional hardware needed before purchase. 

Weld-On Kick Stand for 1-1/8" Frame Tubing - Black

Get rid of your ugly stock kickstand and replace it with TC Bros. super clean black kickstand with hidden spring.

Kit includes satin black powder-coated kickstand and weldable steel block coped to fit 1-1/8" tubing on your frame.

*not for use on kick-start models  

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.

Universal Bobber/Chopper Fender Strut Kit

Kit includes:

(4) CNC Machined steel bungs with 3/8-16 threaded hole

(2) 12" long 1/2" diameter steel rods.

Everything is made in USA from 1018 mild steel for easy welding.

For some extra style, use the TC Bros Mounting Bung Kit

High Performance Washable Air Filter Element for TC Bros Air Cleaners

High Performance Washable Air Filter Element for TC Bros Air Cleaners. Dimensions: ID: 2.875 in (73 mm), OD: 3.875 in (98.4 mm), Height: 2.25 in (57.1 mm). NOT LEGAL FOR SALE OR USE IN CALIFORNIA

King & Queen Seat Mounting Kit

Everything you need to mount your TC Bros. King & Queen Seat. Weld-on bracket is coped to fit our Sportster hardtail perfectly. Mounts are slotted if you want to use this for a universal/custom use.

m.switch 2 button

New: Now also with 3 push-buttons per unit. 

The m.switch is a high-quality universal push-button control for handlebars with 1 in. or 22 mm (7/8 in.) tube diameter in a plain and elegant design. 

These finely CNC machined hand controls in combination with an electronic push-button control unit (not included in the kit) are used to operate all electrical features, e.g. lights, turn signal, E-Starter, horn, etc. 

The casing is made from CNC machined billet aluminum and is available in mirror polished or reflective black finished surfaces respectively.
The compact design casing permits mounting two or more units on one handlebar. 

Each unit is equipped with two or three push buttons in black or stainless steel. Different looks matching or contrasting the casing can be combined freely. Two flush built-in M5 stainless steel mounting screws (only one screw on the three-button version) ensure secure and stable clamping of the push-button control to all handlebars. 

The push-buttons are of high quality, very robust design and vibration- and spray water-proof (IP65). The adequate size and ergonomic pressure point (easy, mechanical detent) provide for a definite actuation sensing - even when operated with gloves. This feedback allows shifting without the need to check the operation. 

Each push-button is equipped with two terminals for an easy optional circuit layout with only one or two cables. The internal ground terminal is already provided for the 'one cable layout'. Therefore, the routing of the cable inside the handlebar can be performed easily. 

The push buttons are available separately and can be replaced if damaged. The m.switch is of course compatible with all common push-button controls, e.g. the m-Unit.

Premium Sissy Bar and Fender Strut Mounting Bungs for Custom Motorcycles

TC Bros high-quality sissy bar and fender strut mounting bungs are essential hardware for custom motorcycle builds. These precision-machined bungs provide secure, reliable mounting points for sissy bars, fender struts, and other rear-mounted accessories on your custom bike.

What Are Sissy Bar/Fender Strut Bungs?

These specialized bungs are designed to be welded onto your motorcycle frame to create mounting points for sissy bars and fender struts. Unlike threaded bungs, these feature an internal diameter (ID) that accepts round tubing, allowing you to slide your sissy bar or strut directly into the bung for a clean, professional installation.

Available Sizes:

• 1/2" ID - Accepts 1/2" diameter tubing
• 5/8" ID - Accepts 5/8" diameter tubing

Key Features:

• Precision Machined - Accurate internal diameter for perfect tube fitment
• Durable Steel Construction - Built to withstand the rigors of motorcycle use
• Clean Installation - Provides a professional, factory-quality appearance
• Versatile Applications - Perfect for sissy bars, fender struts, and custom accessories
• Easy to Weld - Designed for straightforward installation on your frame
• Professional Grade - Trusted by custom builders and fabricators

Choosing the Right Size:

1/2" ID: Choose this size if your sissy bar or fender strut tubing has a 1/2" outer diameter. This is a common size for many aftermarket sissy bars and lighter-duty applications.

5/8" ID: Select this size for 5/8" diameter tubing. This larger size is often used for heavier-duty sissy bars and provides extra strength and stability.

Pro Tip: Always measure your sissy bar or fender strut tubing diameter before ordering to ensure proper fitment. The tubing should slide into the bung with minimal clearance for the best results.

Perfect For:

• Custom motorcycle frame building
• Chopper and bobber builds
• Cafe racer conversions
• Sissy bar installations
• Fender strut mounting
• Rear rack and luggage carrier mounting
• Custom accessory fabrication

Installation Notes:

These bungs are designed to be welded onto your motorcycle frame at the desired mounting location. Proper alignment is critical for sissy bar and fender strut installations. We recommend test-fitting your components before final welding to ensure proper positioning and alignment.

Each bung is manufactured to TC Bros' exacting standards, ensuring consistent quality, precise machining, and reliable performance for your custom motorcycle project.

Weld On Brake Stay Mounting Tab

TC Bros. universal fit, weld-on brake stay mounting tabs are CNC laser cut from 1/4" thick American-made mild steel for easy welding.

Vintage style curves and contours provide eye appeal while the 3/8" diameter hole makes for easy attachment of your brake anchor rod end. This heavy-duty tab design stands up to the most demanding rigid frame applications and can be used to mount almost anything you can dream of.

Sold individually.

Proudly made in the USA.