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Steel Thunder Custom Cycles

152 York Drive

Marshfield, MO 65706

417-468-2326

 Wide Rear Swing Arm Kits
For Harley Davidson Motorcycles & American Custom Bikes

PLEASE NOTE: This is not a project for the novice do-it-yourselfer. This is a difficult conversion, and should only be handled by experienced mechanics. If you do not have experience enough to tear apart and rebuild your transmission, we suggest you take it to a professional. All parts should be mocked up before finishing (i.e. paint, powdercoat, chrome). THESE PARTS FIT APPLICATIONS AS LISTED.

NEW! Convert to 280/300 and add a 6-speed RSD Transmission! Baker 280/300 WIde Tire conversion swingarm kit includes Baker 6 speed Right Side Drive Tranny!

As we all witnessed, virtually every custom motorcycle that catches your eye, whether it be on the street or in a magazine, they all have one feature that is nearly universal; that is they all have a wide rear tire. With this recent phenomena, the wide tire has seemingly become a design standard, this can be seen more than ever since the release of the Avon 300. With the use of these monster tires comes the necessity for a right side drive transmission, which is exclusively offered through BAKER Drivetrain. These two products have since prompted quite a stir throughout the industry and have begun to dramatically transform what is possible with custom motorcycles. Now, using this momentum BAKER Drivetrain has created to ultimate customization, The BAKER 300, which will converge these two revolutionary design concepts into one harmonious, complete, package. The package will allow for anyone who wants to stay with a production bike to become a part of the Right Side Drive/Wide Tire Revolution. Debuting at Sturgis in August, Baker's newest endeavor will take the motorcycle industry by storm, by converting the ordinary Harley-Davidson Softail into a completely custom street ripping wide tire machine and do so through bolt on changes.

This design and concept is exclusive to BAKER Drivetrain, this is a not a copy or imitation. Within the BAKER 300 Wide Tire Kit, we will provide all of the structural, aesthetic, and drivetrain components needed to perform the wide tire conversion for under $7g's. As you would expect, per BAKER tradition, the entire package will be the perfect blend of form and function yielding a product superior to anything on the marketplace, creating a totally unique Harley-Davidson. To save the best for last, Baker will also debut our new premium Right Side Drive Direct Drive 6 speed transmission as the heart of the BAKER 300 Wide Tire Kit.

Included in kit: RSD Transmission, pulley, mechanical actuator, swingarm, axle, wheel spacers, rear fender, rear brake bracket (please note that bracket does not fit OEM caliper), list of required components that are not included, hardware, axle cover.

BDL wide tire kit shown on motorcycles.

This kit does not include brake caliper, wheel, or tire. Comes with Baker Right Side Drive 6 Speed Transmission - BAKER300 ... $6296.00 including shipping*

Call toll-free to order: 1-866-889-7828 9-5 CST, M-F. (We will need specifications.)

200mm Wide Drive Conversion Kits for Dressers - Custom Valley

  • A revolutionary new customization for Dressers; makes a Dresser look unlike any other bike on the road.
  • The easiest way to install a wide drive; bolt-on kit requires no modification.
  • Allows owner to retain saddlebags and stock exhaust; tourpak and backrest will require OEM detachable docking hardware to properly mount.
  • Kit includes a wide swingarm with a 1" rear axle, rear fender, fender strut covers, saddlebag support, billet aluminum primary spacers, transmission components, shaft extension and all necessary brackets and hardware.
  • Accepts 16" x 5.5" or 18" x 5.5" rear wheels and most tires up to 200mm wide.
  • Requires a 1 1/8" belt and rear pulley.
  • Models with 18" rear use OEM brake caliper; models with 16" rear require a smaller custom brake caliper.


NOTE:
Installation of Wide Drive kits require a trained technician

NOTE: This is a special order item.  While most parts ship the same day, this part will take a few extra days to ship.  No express shipping is available.

#DS0503-0021 - For 2002-2006 FLHT, FLHR and FLTR models ... $4305.96 including shipping*        

#DS0503-0020 - For 2001 FLHT, FLHR and FLTR models ... $4305.96 including shipping*                   

#DS0503-0019 - For 1997-2000 FLHT, FLHR and FLTR models ... $4305.96 including shipping*        

200 mm wide drive conversion kit for Dressers from Custom Valley.

Custom fender comes with kit.

200 mm wide drive conversion kit with custom fender shown on dresser.

200MM WIDE DRIVE KIT FOR FXR - Custom Valley

With these kits you can install a 200mm tire using a 1 1/8” rear belt and still keep everything in the center of the bike.
Kits include swingarm, 1” axle, billet aluminum primary spacer with hardware, all necessary transmission parts, shaft extension for compensating sprocket, starter with hardware and detailed instructions.
Will require the use of a custom wide rear fender (sold separately).

Part #: 060503-0043 - For 90-94 FXR... $3111.86 including shipping*

NOTE: Installation of Wide Drive kits requires a trained technician.

Please note: These are special order items. While most items ship the same or next business day, these items will take a few extra days to ship. No express delivery is available. No returns on Special Order items.

200mm Wide Drive Kit for FXR - keep everything center!

300 Wide Tire Fender & Swingarm Kit for 2000-Present Frames - KraftTech

"Bolt-on" kit with only minimal cutting required.  Kit includes Dagger style Swingarm made from 1-3/8" mandrel bent DOM steel tubing, 13.5" one piece 14 gauge deep drawn strutless fender, stainless steel splash guard for 88B 300 right side drive rear section, raw finish rear shorty belt guard, 1" rear axle and axle kit with chrome hidden axle cover plates and hardware. Made in the U.S.A.

NOTE:  Requires right side drive transmission or right side drive conversion of stock transmission.  This kit requires relocation of the tail light and license plate bracket and wiring.

Part#: KW23199 - 300 wide tire swingarm kit for 2000/L style frames ... $1279.00 including shipping*

300 wide tire kit with swingarm and strutless fender for 2000 & Later frames.  Kraft Tech.
Wide Rear Swingarm to fit 250 series tire on an Evo Softail or 280 on a Twin Cam. Widest ever!  

Fat-Axx Swingarm Kit for Softails by Zodiac.
When the latest extreme wide tires were introduced, everybody had a problem. How can one fit a 250 or up to 280 in a stock Softail frame? Simple, that's where Zodiac comes in. Zodiac's Ton Pels designed a complete extra wide swingarm kit that includes a "no jig needed" frame widening kit as well as the primary offset kit that allows the use of up to 280 tires in stock and most aftermarket frames. The frame widening is done with a 15mm (0.590") thick replacement banana shaped frame side plate that has 25mm (0.984") or 35 mm (1.377") offset. The banana shape side plate has to be welded in place using the original banana plate as the welding jig. Due to the location of the engine/transmission of the Evolution models in the frame against the Twin Cam models (10mm/0.393" difference), the 25mm (0.984") offset in the frame plate, in combination with our 45mm (1.772") primary offset kit provides enough room for up to 250 series rear tires in Evolution Softail frames, and 280 series rear tires in Twin Cam Softail frames.

The complete kit contains a swingarm, offset banana frame side plate and a very complete primary offset kit. Primary offset kit includes primary spacer ring with support bearing, crankshaft extension, extension nut, primary gasket kit, extended main shaft, extended main drive gear, offset front pulley, extended starter motor coupler with extended bolt and all extended primary bolts with locking plates. The OEM brake caliper can be re-used, and tabs for the belt guard are welded in place. The kits for Evolution Softail must be used with a Twin Cam type 1-1/8" wide, 135 tooth final belt and a 70 tooth 1-1/8" wide pulley. When installing this kit in a 1991 thru 1993 model, a late style countershaft 5th gear must be ordered separately.


Note: We strongly recommend a craftsman or certified welder does the welding of the side plate.

 

Part #KW23129 - Wide Rear Swingarm to fit up to 250 tire on a Evo Softail 1991/1999 ... $1,995.95 including free shipping*

Part #KW23128 - Wide Rear Swingarm to fit up to 280 tire on Twin Cam Softail 2000/L ...$1,995.95 including free shipping*

Part #KW23198 - Wide Rear Swingarm to fit up to 300 wide tires on Twin Cam Softail 2000/L ... $2238.93 including free shipping*


NEW!  Now fit up to a 300 wide tire on Twin Cam 2000/L!

 

Fat Ass 300 swingarm kit for 300 seireis tire on Softail Evo or Twin Cam.

 

 

 

 

 

 

 

 

 

Super Wide Swingarm & Swingarm Kit for Twin Cam Softails - Zodiac

Due to the construction of the engine and transmission set-up of the Twin Cam Softail, it is not possible to offset the transmission to make room for 200 or bigger tires.  The Wide and Extra Wide swingarm kits enable you to mount up to a 250 monster tire in your stock Softail.  The Wide swingarm kit will accept 200mm tires on a 6-1/2" rim using the stock belt.  The Extra Wide swingarm takes 230mm wide tires on 8" or 8-1/2" if the wheel is slightly offset to the right or a final chain drive is used.  Kit contains a swingarm with wheel axle, a complete 12mm (0.472") or 25mm (0.984") primary offset kit, including primary spacer ring, crankshaft extension and extension nut, primary gasket kit, extended transmission main shaft and main drive gearing, extended  starter motor coupling and extended primary bolts.  Our trick caliper bracket enables you to use the stock rear caliper.  For 230 tires on a 15" steel rim, a small modification of the OEM caliper may be needed, 15" cast or billet wheels require the use of a custom rear caliper and 10" disc brake rotor.  Tabs for the belt guard are welded in place.

NOTE:  Do to the variety of wheels, fenders, fender struts and wheel spacers available, these are not included in the kit.

#07-08023 - Wide Swingarm Only - fits Twin Cam Softail models using up to a 250 tire on an 8.5" rim ... $1019.79 including free shipping*

#07-23131 - Wide Swingarm kit for Twin Cam Softail models ...$1610.98 including free shipping*

#07-23130 - Extra Wide Super Swingarm kit for Twin Cam Softail models ... $1762.98 including free shipping*

Wide or Super Wide Swingarm kit for Twin Cam Softails.

Wide swingarm also available separately.

 

Twin Cam Softail Wide or Super Wide swingarm kit.

 

 

Wide Tire Swingarm Kit for Dyna models - Zodiac

These European-made complete wide tire conversion kits enable you to mount a 200 wide rear tire on a 6.25" wide rim (tire measures 8.66") in the stock Dyna frame and still keep the stock 1-1/8" drive belt without trimming.  If the wheel is slightly offset even 230 or 250 tires can be used.  The kit contains either raw or black powder coated extra wide swing arm, rear wheel axle, rear wheel axle adjusters, raw or powder coated fender struts that will take up to a 10-1/2" wide fender, extended upper shock mounting studs, a complete 25mm (0.984") primary offset kit with a primary spacer ring, crankshaft extension and crankshaft nut, extended transmission main shaft, extended main drive 5th gear with needle bearings and seal, extended belt pulley spacer, extended clutch push rod, splash guard, and spacers to offset the right hand side foot pegs and the exhaust.  Also included are two different brake caliper brackets to allow the use of either a 1991 through 1999 or 2000 through 2003 stock or aftermarket rear brake caliper. We offer a variety of wide rear fenders for use with the wide swingarm.

#07-23125 - Fits 1991 thru 2003 Dyna models, Complete kit with raw swingarm ... $1640.20 including free shipping*

#07-23126 - Fits 1991 thru 2003 Dyna models, Complete kit with black powder coated swingarm ... $1756.05 including free shipping*

#07-13017 - 1.00" (25mm) lower primary spacer, fits 91/03 Dyna ... $3.91

(Ships free with swingarm.  Please note we have a $35 minimum order policy.)

#07-13019 - 1.77" (45mm) bottom primary spacer, fits 91/03 Dyna ... $4.10

(Ships free with swingarm.  Please note we have a $35 minimum order policy.)

Wide Tire Swingarm Kit for Dyna

Dyna wide tire swingarm kit.

Sportster Wide Tire Swingarm Kits - Ledsled

Ready to start running the big rubber on the rear?  Now you can do it with quality and style using our Ledsled swingarm kits.  The kits fit 1991 through 2006 Sportsters.  Choose from 4 kits: 180/200 or 240/250 kit.  The kits come with detailed instructions and a complete photo shoot of the process to modify your Sportster.  You must have a saw and a welder, and you must be a qualified mechanic to do this installation.

#07-08026 -180/200 Wide Kit - Fits Sportster models from 1991 through 2003... $1129.99 including free shipping*

#07-08027 -180/200 Wide Kit - Fits Sportster models from 2004 through 2006... $1129.99 including free shipping*

#07-08025 - 240/250 Wide Kit - Fits Sportster models from 1991 through 2003... $1129.99 including free shipping*

#07-08028 - 240/250 Wide Kit - Fits Sportster models from 2004 through 2006... $1129.99 including free shipping*

Sorry, there are no wide tire swingarms for 07/08 Sportys at this time.

Ledsled Wide Tire Swingarm Kits for 1991-2006 Sportsters

Ledsled Wide Tire Swingarm kit for Sporsters.

180/200 or 240/250

PHATROD 280 REAR WHEEL CONVERSION KIT FOR VRSC - Performance Machine Inc.

Bolt-on kit that converts bike to 10” rim with a 280mm rear tire.
Includes chrome aluminum swingarm, rear axle assembly, machined aluminum off-set motor pulley and all spacers and extended shock hardware.
Utilizes stock belt.
Does not require any cutting or fabricating.
One-piece steel fender, fender with recessed license plate, 18” x 10” rear wheels and brake calipers are sold separately.
License plate frame features LED taillight and integrated turn signals.

Part #: 060503-0048- FOR: 05-06 VRSC, SIZE: 280 mm, chrome - Swingarm conversion kit ... $2,669.96 including shipping*

PHATROD KIT COMPONENTS
Part #: 060202-0472 18” x 10” Torque wheel ... $1,544.96 including shipping*


Part #: 060202-0471 18” x 10” Cartel wheel ... $1,544.96 including shipping*


Part #: 061701-0115 Chrome brake caliper ... $504.96 including shipping*


Part #: 061401-0203 Steel fender ... $475.96 including shipping*

NOTE: Requires a custom seat.

Please note: These are special order items. While most items ship the same or next business day, these items will take a few extra days to ship. No express delivery is available. No returns on Special Order items.

Phatrod 280 Rear wheel conversion kit for 05/06 VRSC.

Torque wheel for VRSC phatrod wide tire conversion kit.060202-0472

Wheel for VRSC wide tire conversion kit.060202-0471

Steel Rear TIre for VRSC Wide Tire conversion kit.

061401-0203

Pulley needed to install up to 180 rear tire on a 91/03 Sportster (not needed if you buy kit above)

#VT20-0512 - 29 Tooth Front Drive Pulley features .750 offset for XL 91/L ... $172. 99 including shipping*

29 tooth front drive pulley with .750 offset for 1991 and up XL models.
BIG WHEEL CONVERSION KIT - Arlen Ness

Allows your FXST to use a rear tire up to 6 1/2" W while using the factory rear belt drive.
Includes a 1/4" offset transmission plate, billet aluminum inner primary spacer, motor sprocket spacer, rear sprocket spacer, inner primary O-rings and hardware.
Made in the U.S.A.

Part #: DRDS-199500 For 84-99 FXST $163.16 including shipping*

Please note: This is a special order item. While most items ship the same or next business day, this item will take a few extra days to ship. No express delivery is available. No returns on Special Order items.

Allows your FXST to use a rear tire up to 6 1/2" W while using the factory rear belt drive!

Big Wheel Conversion Kit allows larger rear tire on stock FXST.

PRIMARY OFFSET KITS FOR 5 & 6 SPEED MODELS
INCLUDING DYNA TWIN-CAM & SOFTAIL TWIN-CAM - Zodiac

Contrary to Evolution models it is not possible to move the transmission on Twin-Cam models to the left as these models have the transmission bolted to the crankcase. The Zodiac off-set kit enables you to move your primary 12 or 25 mm without moving your stock or aftermarket 5 Speed transmission, or 25 mm when you have a 6 Speed Zodiac transmission or conversion. The kit comes with an extended transmission main shaft and extended transmission main drive 5th gear, leaving the transmission housing in exactly the same place but allowing you to offset the front final drive pulley 12 mm or 25 mm, thus creating space for a wide rear tire. And when we say wide we mean WIDE. The 12 mm off-set kit allows the use of a 200 tire with the stock belt in an Evolution or Twin-Cam frame, the 25 mm offset kit
allows a 230 wide tire on a 7.50 rim in both the Evolution and Twin-Cam frame if the late type “narrow” final drive belt drive is used. If a chain is used for the final drive the stock frames will accept up to 250 wide tires on a 9.00” rim. The transmission main shaft and main drive gear are CNC manufactured by one of the worlds leading automotive transmission factories. The material selected is a High Stress 20CrMnT gear steel. Gear and shaft are tempered and stress released to a core hardness of 35 to 45 Rockwell and have a surface hardness of 58 to 60 Rockwell. Our offset primary kits contain:
primary spacer ring, extended crankshaft extension and extended crankshaft nut, extended transmission main shaft, extended main drive 5th gear with needle bearings and seal, extended belt pulley spacer, extended clutch push rod, extended starter jack shaft (only for 25 mm kit), starter jack spacer, primary-to-transmission spacers and all required hardware. When you have a 1991 thru 1993 model 5 Speed transmission you must order a countershaft 5th gear, extended starter jack shaft bolt and late style final drive pulley separately. Wide swingarm and fender struts must be
ordered separately.
5 Speed offset primary kits for Evolution Big-Twin
models 1991 to 1999, Dyna Twin-Cam models 1999
thru 2005 and Softail Twin-Cam models 2000 thru
2006
Optional parts are needed for use with 1991 thru 1993
style 5 Speed transmissions (not for RevTech). Give us a call.

#KW13015 - 5 Speed Primary Offset Kit for Evolution Big Twin models 1991 to 1999, Dyna Twin Cam models 1999 thru 2005 and Softail Twin Cam models 2000 thru 2006.  12mm (0.47") offset ...$548.92 including free shipping*

#KW13016 - 5 Speed Primary Offset Kit for Evolution Big Twin models 1991 to 1999, Dyna Twin Cam models 1999 thru 2005 and Softail Twin Cam models 2000 thru 2006.  25mm (0.984") offset ...$659.99 including free shipping*

KW#23201 - 6 Speed Primary Offset Kit for Evolution Big Twin models 1991 to 1999, Dyna Twin Cam models 1999 thru 2005 and Softail Twin Cam models 2000 thru 2006.  25mm (0.984") offset ...$849.22 including free shipping*

5 & 6 Speed Transmission Primary Offset Kits.

*FREE SHIPPING APPLIES IN CONTINTENTAL 48 UNITED STATES ONLY. AK, HI and APO/FPO will have additional shipping fees. We ship only within the U.S.A. and to APO/FPO (military addresses; weight and size restrictions apply.). We do not accept foreign credit cards. We do not ship to Puerto Rico.

Prefer to call in your order to Steel Thunder? Call toll-free: 1-866-889-7828. 9-5 CST M-F.

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