Steel Thunder Custom Cycles motorcycle parts


Shopping Pages:

Control Section:

Brakes, discs, rotors, dashes & instrument panels, gauge brackets, footpegs, forward controls, grips, throttle control, handlebar controls, handlebars, levers, linkage, levers, mirrors, risers, shift & jockey control.

Drivetrain Section:

Belt drives, belt drive covers, clutch kits, chain drives, drivetrain packages, kick start transmission, offset sprockets, points, derby & ignition coves, primary belts, primary chains, primary covers, pulley & brake combo kit, rear drive belts, Sportster performance parts, six speed conversion, rear sprockets, rotors, transmissions & parts.

Electrical Section:

Battery related, battery tenders, charging systems,coils & mounts, dash/instrument panels, speedos, tachs, terminal kits, electronic ignitions, handlebar switches, headlights, horns, lighted license plate mounts, lighting, starter motors, taillights, turn signals, wiring harnesses.

Engine Section:

Motorcycle engine parts, drivetrain packages, cams & cam side parts, big bore kits, big bore piston kits, Sportster engine parts, motor mounts, drivetrain section, engine mounts.

Exhaust Section:

Exhaust pipes listed by model, exhaust accessories, insulating wrap, mufflers, extensions, high heat spray, heat shields, clamps and mounts.

Frame/Body Section:

Frames listed by style, engine mounts, fenders, struts, floorboards, foot rests, pegs, frame covers, hardtails, highway bars, kickstands, lowering kits, seats listed by model, shocks, sissy bars & pads, swingarms.. Also, Rolling Chassis Kits.

Front End Section:

Complete front fork assemblies, fairings & fairing accessories, fork brackets/triple trees, fork tubes, sliders, fork legs, boots, springer front ends & parts, wide glide kits.

Fuel Section (Gas, Oil, Air):

Air cleaners & covers, breathers, carburetors & rebuild kits, fuel injection control, gas tanks, gas caps, gas tank cleaner/prep systems, oil, oil coolers, oil line kits, oil pressure & tank gauges, oil pumps, oil tanks, , velocity stacks.

Saddlebag & Windshield Section:

Saddlebags listed by manufacturer, windshields

Wheel Section

Tires,  tire size chart, 40, 60 & 80 spoke wheels, solid wheels.

General Merchandise Section:

Catalogs, covers, gift certificates, gift suggestions, goggles & eyewear, hardware, luggage racks, motors, motorcycle covers, security, locks & alarms, tools, trailer accessories, ramps, wheel chocks, trailer hitches to put on motorcycle.

Other Pages:

Fun, Photos & Links Section:

Photos of our customer's motorcycles, including bike kit builds, trike build link, free biker ecards, jokes, banner links, text links, link to us, webmaster's awards.

Tech & Info Section

Tech tips, tire size chart, engine break-in, suspension & shocks info, rake and trail calculator, contact page, frequently asked questions (FAQ), our credentails, terms & conditions of sale, disclaimer, international shipping policy.

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Sitemap and Search Home Page Contact Us Sportster Section Catalogs

 Rolling Chassis Kits from Mid-USA Motorcycle Parts - 250, 300 & 330 wide & NEW Rigid Bobber

WARNING - There are people on EBAY saying they are shipping these kits, BUT THEY ARE NOT!  These people are using Mid-USA pictures and parts lists, but don't buy from them. They are sending cheap wheels and parts, and parts that don't fit.  We have learned this from talking to their very unhappy customers.

Rigid Bobber Rolling Chassis Kit - Old School Cool!  


Mid-USA's New Rigid Bobber Rolling Chassis Kit for Old School cool.

Click image or here to see larger.




Call 603-237-8200 to order

Bobber Rolling Chassis view from top.

Click image or here to see larger




Click HERE to see Steve's Bobber home build photos

Bobber motorcycle shown in mock-up stage.


Call 603-237-8200 to order



Bobber Rolling Chassis Parts list:

  • Handlebars
  • Front Tube (inner)
  • Springer front end (Choice of Chrome or Black)
  • Front wheel
  • Frame: (see below for different frame choices)
  • Rear wheel - 16 x 3.50, 40 Spoke
  • Gas tank, Bobber Style
  • Front tire
  • Rear Tire (140 or 180)
  • Rear axle
  • Axle Adjusters (2)
  • Kick stand
  • Neck bearings, races, and dust shields (2 each)
  • Oil Tank
  • Rear Oil Tank Bracket
  • Rubber Mounts (oil tank)
  • Risers
  • Riser Bolts

BIG TWIN BOBBER ROLLING CHASSIS. This frame will accept panhead, shovelhead & Evo motors, as well as TC88A with an adaptor plate.


Part #STCC20008R - 30 degree rake, 0 stretch .... $2,950.00

Part #STCC20009R - 34 degree rake, 2" stretch ... $2,950.00

Part #STCC20003R - 180 Rear tire, 30 degree rake , 0 stretch.. With 80 spoke wheels... $3,495.00


Call 603-237-8200 to order

NEW! SPORTSTER BOBBER ROLLING CHASSIS. To use a Sportster engine, you must use a Sportster frame (and visa versa). CHOOSE FROM:

2004/Later Sportster:

#STCC20010R - 30° Rake, 0" Downtube Stretch, 0" Backbone Stretch, 140 Tire ... $3350.00

See frame 20010 here

Call 603-237-8200 to order

86-03 Sportster:

#STCC20224R - 30 degree Rake, 0 Stretch, 130 rear tire ... $2950.00

#STCC20225 - 30 degree Rake, 0 Stretch, 180 wide tire with belt, 200 wide tire with chain... $3495.00

See frames here (M20224, M20225).

Call 603-237-8200 to order

Ironhead Sportster:

#STCC20226R - 30° Rake, 0" Downtube Stretch, 0" Backbone Stretch, 140 Tire ... $2975.00

#STCC20227R - 30° Rake, +2" Downtube Stretch, +2" Backbone Stretch, 140 Tire ... $2995.00

#STCC20228R - 30° Rake, 0" Downtube Stretch, 0" Backbone Stretch, 180 Tire ... $3495.00

#STCC20229 - 30° Rake, +2" Downtube Stretch, +2" Backbone Stretch, 180 Tire ... $3540.00

See frames here (M20226, M20227, M20228, M20229)

Call 603-237-8200 to order




Don't see what you need?  Contact us.  Chances are we have it.  We have thousands of parts that are not shown online.

PLEASE NOTE: We Do NOT Backorder. If your item is not in stock, you will be notified and given a refund.

15 Percent Coupon, summer promo, Beer Machine

FLAT RATE SHIPPING APPLIES IN CONTINTENTAL 48 UNITED STATES ONLY. AK, HI and APO/FPO will have additional shipping fees. We ship within the U.S.A. and to APO/FPO (military addresses; weight and size restrictions apply.). We do not accept foreign credit cards. Please see our CONTACT page for more information.

Prefer to call in your order to Steel Thunder? Call 603-237-8200.


Please note that all prices are subject to change.


Steel Thunder Custom Cycles

531 Bungy Road

Columbia, NH 03576

Copyright 2002-2013 Steel Thunder Custom Cycles©


Thank you for shopping at Steel Thunder Custom Cycles online motorcycle parts store!




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