Fabrication Parts

Universal Frisco Gas Tank Mounting Kit

 Includes 3/8"-16 Stainless steel button head bolts, 1018 mild steel tophat bungs, leather cushion washers, stainless steel washers.

Leather Cushion Washers with 3/8 inch Hole 10 pack

These leather washers are perfect for protecting your paint and are more durable than rubber. The cushioning & dampening effect that these washers provide is perfect for installing between your frame and mounting tabs found on gas tanks, fenders, oil tanks, or anything else you want to protect from vibration. Also great for use under solo seat springs to prevent squeaking. Dimensions are 1 inch diameter x 3/8 inch hole x 1/8 inch thick. Sold in pack of 10 washers.

TC Bros-Kickback Sissy Bar DIY Kit

This is exactly what you need for a sissy bar that fits your bike perfectly!

Kit includes a precision CNC bent sissy bar hoop, axle plate mounting tabs, 3/8-16 threaded radius bungs, mounting bolts, and leather washers to protect your paint.

Simply trim the hoop to your desired height and weld the included tabs and bungs to the hoop. The hoop is constructed from premium 1/2" diameter 1018 cold-rolled American steel for high strength and easy welding. The threaded radius bungs allow for mounting bolts to be hidden on the underside of your fender for a professional-looking installation. Universal design is perfect for both flat or round profile rear fenders.

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

Proudly made in the USA

Radius Style Threaded 3/8-16 Short Length Steel Bungs 

Radius Style Threaded 3/8-16 Short Length Steel Bungs by TC Bros.

Save time and create professional quality mounts using these blind threaded radius bungs.

Perfect for mounting fenders or anything where you desire a clean, finished appearance.

Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. 3/4" diameter x 1-1/4" long. See photos for all dimensions.

Sold in packs of 4

Weld-On Rear Fender Mount for Bobbers and Choppers

universal fit, weld-on fender mounting bracket is constructed from a single piece of 1/4" thick American made mild steel for easy welding.

Vintage style curves and contours provide eye appeal while the 5/16" diameter mounting holes make for a simple installation. Leather washers are provided to prevent paint damage and provide vibration resistance. This fender bracket is most commonly used to mount flat profile fenders (4.5" minimum width) to a frame cross member. The straight portion of the bracket is easily trimmed to length to fit your application. Although this bracket is designed to best fit flat profile fenders, we have found that it works well to mount TC Bros. SKU #105-0136 rear fender because the center portion of the fender is a very large radius (nearly flat).

Combine this bracket with a set of our universal fender struts (SKU #104-0008) and you have a fender mounting system that will withstand the most demanding rigid frame applications. Sold individually.

Proudly made in the USA.

Heavy Duty Oil Tank Mounting Kit

Use this kit to mount TC Bros. Oil Tanks to our Sportster Hardtail.

Can also be used for universal applications. Made in USA

Counterbore Steel Bungs for 3/8 Socket Head

Save time and create a super strong mount for just about anything on your bike using these bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding.

Bungs are counterbored to fit standard 3/8" socket head bolts so that the head of the bolt is flush inside the bung for a clean looking installation. Pair these bungs with any of our matching 3/8-16 threaded bungs and you have a professional quality mounting solution.

Bungs measure 3/4" diameter x 5/8" long. See photos for all dimensions.

Sold in packs of 4.

Sportster Hardtail Kit for 82-03 by TC Bros. (Weld On)

TC Bros. Sportster Hardtail kit is designed to be the highest quality, most complete, and easiest to install kit on the market. We proudly manufacture these frames 100% in the USA with USA sourced materials. Modern CNC mandrel bending, CNC machining and laser cutting provide consistent high quality results. Each frame is made in a precision CNC machined welding fixture to ensure a perfect fit every time. We include detailed install instructions with photos and all the necessary mounting hardware for a seamless install.

Unique Features: 

• 100% Made in the USA quality.

• CNC Mandrel Bent .120" Wall USA Made Steel Tubing. 

• 1-5/8" OD Backbone & 1-1/4" OD Rails are same diameter as original frame for a seamless looking transition.

• Designed in 3D CAD software for a perfect fit.

• Includes all required hardware and install instructions.

• Works great with your stock wheel, tire, brake, axle, spacers, etc.

• All tubing is slugged at all frame attachment points for a high strength connection.

• CNC Laser Cut Axle Plates with built in Chain Adjusters (3/8” Thick).

• Allows you to keep your stock Harley title/registration to prevent insurance & licensing headaches. 

Fitment Notes:

• Fits all 1982-2003 Harley Davidson Sportster Models (883, 1200, and 82-85 Ironhead).

• Hardtail incorporates 2” of stretch and 5” of ground clearance for a great looking stance with a stock length front end.

• Due to stretch, a longer chain or belt (137 tooth belt) is required.

This will not fit the following bikes:

• 1957-1981 Ironhead Sportsters

• 2004-Present Sportsters (rubber mount)

Tall Kickback DIY Sissy Bar Kit

TC Bros. Tall (36") Kickback DIY Sissy Bar Kit is exactly what you need for a sissy bar that fits your bike perfectly!

Kit includes a precision CNC bent sissy bar hoop, axle plate mounting tabs, 3/8-16 threaded radius bungs, mounting bolts, and leather washers to protect your paint.

Simply trim the hoop to your desired height and weld the included tabs and bungs to the hoop.

The hoop is constructed from sturdy 5/8" diameter 1018 cold rolled American steel for high strength and easy welding. The threaded radius bungs allow for mounting bolts to be hidden on the underside of your fender for a professional-looking installation. Universal design is perfect for both flat or round profile rear fenders.

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

Proudly made in the USA.

36" overall length.

Weld On Threaded Solo Seat Spring Mounts

TC Bros. Choppers pair of Custom Weld on Chopper/Bobber Solo Seat Spring mounts.

Great for torsion style seat springs.

CNC Machined from 1018 cold rolled steel and are ready to weld on. 
Stainless Steel Studs are 5/16"-18 thread and base is 1" diameter with a 1 1/8" radius coped into the mount. Easily fits 1" and 1 1/4" cross tubes.

Kit Includes 2 CNC Machined mild steel mounts, 2 stainless steel washers, 2 stainless steel studs, 2 nylock nuts. (seat springs not included).

Just like their front seat pivot these are universal and can fit endless applications.

Steel Bungs 5/16-18 Threaded 1/2 inch Long

Save time and create a super strong mount for just about anything on your bike using these fully threaded bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. These are a perfect match to our 5/16" counterbore style bungs for socket head bolts. These bungs are 3/4" diameter x 1/2" long are are tapped through with 5/16-18 threads. See photos for all dimensions. Sold in packs of 4.

Weld-On Kick Stand for 1-1/4" 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 1-1/4" tubing on your frame.

*not for use on kick-start models  

Mounting Tab Style 2

CNC laser cut from 1/4" thick American-made mild steel for easy welding.

Heavy-duty design performs under the most demanding rigid frame applications. 5/16" diameter hole works perfectly with 5/16" hardware and is the proper size for you to tap to 3/8-16 if a threaded hole is needed. Save yourself a lot of time on your build by using these tabs to mount almost anything.

Sold in packs of 4.

Proudly made in the USA.

Tall DIY Sissy Bar Kit

TC Bros. Tall (36") DIY Sissy Bar Kit is exactly what you need for a sissy bar that fits your bike perfectly!

Kit includes a precision CNC bent sissy bar hoop, axle plate mounting tabs, 3/8-16 threaded radius bungs, mounting bolts, and leather washers to protect your paint.

Simply trim the hoop to your desired height and weld the included tabs and bungs to the hoop.

The hoop is constructed from sturdy 5/8" diameter 1018 cold rolled American steel for high strength and easy welding. The threaded radius bungs allow for mounting bolts to be hidden on the underside of your fender for a professional-looking installation. Universal design is perfect for both flat or round profile rear fenders.

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

Proudly made in the USA.

36" overall length.

5/16-18 Threaded 1" Long Steel Bung

Steel Bungs 5/16-18 Threaded 1 inch Long by TC Bros Save time and create a super strong mount for just about anything on your bike using these fully threaded bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. These are a perfect match to our 3/8" counterbore style bungs for socket head bolts. These bungs are 3/4" diameter x 1" long and are tapped through with 5/16-18 threads. See photos for all dimensions. Sold in packs of 4.

Sissy Bar/Fender Strut Mounting Bungs 5/8" ID

DIY Sissy Bar/ Fender Strut Mounting Bungs - 5/8" ID.

Perfect size for the TC Bros Tall length DIY sissy bars and with the TC Bros fender strut kit.

• Tall Kickback Sissy Bar
• Tall DIY Sissy Bar

Weld-On License Plate Bracket

The good folks over at Prism Supply Co have designed a license plate bracket to work with any new or vintage license plate.  It's perfect for that sissy bar application. Comes in either stainless or mild steel with a thickness of 8 gauge or 0.1285".

Don't forget a set of Glass License Plate Jewels for that vintage custom look! 

1/4" NPT Steel Weld-In Petcock Bung

TC Bros. 1/4" NPT (National Pipe Thread) bungs are most commonly used for gas tank petcock bungs or for oil tank fittings.

Proudly made in the USA from premium American 1018 cold rolled steel for easy welding.

Note: NPT threads are tapered. They are only designed to be used with corresponding NPT threaded fittings or pipe. The tapered design allows the threads to create a leak proof seal when tightened. They are not to be used with standard bolts or hardware.

These bungs install easily by inserting into a 3/4" diameter hole and welding around the 1" diameter flange. See photos for all dimensions.

Sold in pairs.

Brake Pivot For Forward Control Linkage

universal brake pivot kit for connecting forward control linkage to drum brake linkage.

Kit includes: weld on raw steel mount with threaded holes that is coped to fit your frame tubing. After welding the mount to your frame you can then bolt the brake pivot to the mount.

Brake pivot is totally serviceable with replaceable oil impregnated bronze bushings. Pivot is powdercoated gloss black for a super durable finish. Kit also includes one raw steel return spring mounting tab and a return spring.

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  

Steel Bungs 3/8-16 Threaded 1/2 inch Long

Save time and create a super strong mount for just about anything on your bike using these fully threaded bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. These are a perfect match to our 3/8" counterbore style bungs for socket head bolts. These bungs are 3/4" diameter x 1/2" long are are tapped through with 3/8-16 threads. See photos for all dimensions. Sold in packs of 4.

Yamaha XS650 Weld On Hardtail Frame

Yamaha XS650 weld-on rigid hard tail frame section. This is the easiest way to make your XS650 into a chopper or bobber. They incorporate 3" of stretch and 5" of ground clearance for a very balanced look and stance that is very rideable. They are designed to use your XS650's stock wheel, tire, spacers, and chain adjusters. They are constructed of 1 1/8" diameter steel tubing with .120" wall thickness. The 1 1/8" diameter is also the same as the stock XS650 frame tubing for a very nice looking install that looks like it was factory made. The axle plates are cut from 3/8" thick steel and have an integrated mount hole for easy fender mounting. The hardtail was designed using the latest CAD software and built in a CNC machined fixture for a perfect fit every time. The lower rails have solid steel slugs welded into them that fit into the stock frame tubes for strength and easy assembly. Mounting instructions are included with every kit.

Only for use with 1970-1983 Yamaha XS650. Can't be used with any other Yamaha or other manufacturer motorcycles.

For all other makes/models, please refer to SKU: 104-0011, Universal Hardtail Kit in our Related Products section.

- High Quality, Proven Design since 2007

- Designed By TC Bros. Using The Latest 3D CAD Software.

- CNC Mandrel Bent American Made Steel Tubing For Accuracy.

- Welded in a CNC Machined Fixture For a Perfect Fit Every Time!

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

Weld-On Kick Stand for 1" Frame Tubing - Chrome

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

Kit includes a chrome kickstand and weldable steel block coped to fit 1" tubing on your frame.

*not for use on kick-start models