Steel Thunder Custom Cycles Motorcycle Parts store for Harley-Davidson and custom bikes.

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Steel Thunder Custom Cycles
3418 Teagues Road
Marshfield, MO 65706
417-468-2326

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

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Some Helpful Links:

SPORTSTER SHOCKS

SHOCK INFO (TECH)

 

Shock Absorbers for American Motorcycles - Free Shipping*

FOR SPORTSTER SHOCKS CLICK HERE

Lowering Kits near bottom of page.

Progressive 412 Series

Style A

Style B

Style C

Style D

STEEL BODY SHOCK ABSORBER SETS FOR BIG TWIN & SPORTSTER - Progressive Suspension

412 Series.
Multistage velocity sensitive internal valving, double walled steel bodies and precision ground hardened steel shafts for fade free operation with a consistent ride over a variety of surfaces and extended seal life.
Spring pre-load is easily set with a cam type adjuster.
Shock length is measured from center of eye to center of eye (always verify existing shock length before ordering).
Includes a spring pre-load adjusting tool.
Instructions are included.
Made in the U.S.A.

PRICES INCLUDE FREE SHIPPING*

Note: When using shocks shorter than OEM, check all related parts such as tire to fender clearance with shock fully compressed, headlight aim and Jiffy stand lean angle.

Model & Year
Size & Style
Part # Price Buy Now
Big Twin 4 Speed 58/72
13.6"/A
M29061 $323.06
Big Twin 4 Speed 73/86 (except Softail)
11"/A
M29069 $323.06
Absorbers-Big Twin 4 Speed 73/86 (except Softail)
11"/B
M29062 $269.96
Absorbers-Big Twin 4 Speed 73/86 (except Softail)
12"/A
M29063 $323.06
Absorbers-Big Twin 4 Speed 73/86 (except Softail)
12"/B
M29057 $269.96
FXR 82/Later
11"/C
M29048 $269.96
FXR 82/Later
11.5"/D
M29050 $269.96
FXR 82/Later
12.5"/D
M29052 $269.96
Dyna models 91/05(except FXDX & FXDXT) & FXDBI 06/L
11"/B
M29065 $269.96
Sportster 79/03
11"/C
M29048 $269.96
Sportster 79/03
11.5"/D
M29050 $269.96
Sportster 79/03 12.5"/D M29052 $269.96

NEW!

Ultimate Adjustable Comfort

Progressive Suspension Airtail Rear Shocks for FLT.

Progressive Suspension Airtail Rear Shocks for FLT

 

Optional on-board compressor kit. Or buy hand pump.

On-Board Compressor Kit

 

 

AIRTAIL REAR SHOCK ABSORBERS FOR FLT - Progressive Suspension

State of the art integrated air and coil shock absorber utilizes a linear rate coil combination with dual chamber air shocks for a smooth ride and ultimate suspension control.
These chrome plated shocks ride like traditional high-end shocks while still allowing for extensive height and spring rate tuning.
Inertia Active System (I.A.S.) with inertia valve technology separates wheel movement from chassis movement.
High pressure gas charged for consistant damping performance.
Dual chambered technology offers one air chamber for bottoming control and adjusting suspension for the bike's load.
The second air chamber adjusts ride height.
13" eye to eye shock length.
Shocks use a manual fill system with an optional on-board compressor kit available.
The on-board compressor kit includes a chrome plated rocker box mounted bracket and cup that houses an air pressure gauge.
The rocker box bracket fits 1999/Later Twin Cams, so by relocating the air pressure gauge the air compressor will fit 1980/1998 models.
Includes instructions.  Made in the U.S.A.

Part#: M29018 - Chrome Plated Shock Set - Fits FLT 1980/Later ...
$897.93 including free shipping*

Part#:M29251 - On-Board Compressor Kit - Fits FLT 1999/Later ... $659.83 including free shipping*

Airtail Rear Shocks for Softail 2000/L. Air pressure controlled ride height. Use on-board compressor or hand pump.

Progressive Suspension

Contol your ride comfort and height, riding alone or with a passenger.

 

 

 

On Board Compressor Kit for Airtail Shocks - take it EASY and ride in comfort.

Progressive Suspension

Airtail Rear Shocks for Softail 2000/L and 1989/1999 - Progressive Suspension

Air pressure controlled ride height (down to 2" lowered seat height) is easily adjusted on the fly by the optional on-board compressor kit. (See below.) The optional hand pump is an economical means of adding air pressure if the on-board compressor kit is not desired.
One shock of the chrome plated set is conventional and incorporates a coil spring and damper assembly. This shock basically supports the weight of the motorcycle and controls the compression/rebound dampening characteristics. The other shock features two separate air adjustable chambers. One chamber is used for the rider/passenger's weight and the other is used to control the ride height.
The advantage of the airtail system is that the air compresses at a progressive rate and easily solves the age old problem of bottoming out (even when running in the lowered state).
The on-board compressor kit includes a chrome plated coil cover that houses an air pressure gauge, rocker switch for adding air to each chamber and two push button air bleed valves. The air compressor itself mounts to the rear fork axis tube and no modification is required to your existing parts for installation. Instructions are included.
The hand pump is designed for people that won't be constantly changing the ride height. You can just set it and forget it and enjoy a better ride than was previously available from any other shocks available. Made in USA.

Shock sets. Part#:M29095 Fits Softail 2000/Later. ... Price $739.95 including free shipping*

Shock sets. Part# M29094 Fits Softail 1989/1999 ... Price $739.95 including free shipping*

Also purchase compressor below:

Optional On-Board Compressor Kit for Airtail Shocks

The advantage of the airtail system is that the air compresses at a progressive rate and easily solves the age old problem of bottoming out (even when running in the lowered state).

The on-board compressor kit includes a chrome plated coil cover that houses an air pressure gauge, rocker switch for adding air to each chamber and two push button air bleed valves. The air compressor itself mounts to the rear fork axis tube and no modification is required to your existing parts for installation. Instructions are included. Made in USA.

Part#:M29246 - On-Board compressor kit. Fits Softail 2000/Later. Price $673.83 including free shipping*

Part # M29245 - On-Board compressor kit. Fits Softail 1989/1999. Price $673.83 including free shipping*

Lowers seat height as much as 2"

Progressive Adjustable Length Shock Absorbers for Softail motorcycles.

ADJUSTABLE LENGTH SHOCK ABSORBER SETS FOR SOFTAIL - Progressive Suspension

Chrome Plated.
Lowers seat height as much as 2".
These 422 Series shocks are designed to provide the ultimate in ride quality.
Features Inertia Active System (I.A.S.) damping. This type of "state of the art" valving senses the difference between chasis movement and wheel movement. When the wheel encounters a pot hole or expansion joint the damping changes instantly from firm to soft allowing the wheel to move rather than having the jolt transmitted to the chassis and the rider.
Progressive wound springs further enhance the ride quality by increasing in tension relative to the amount of shock travel.
Nitrogen charged to help eliminate dampening fade unde extreme conditions and high heat.
Large windows in the shock covers provide a unique look while eliminating internal corrosion.
3/8" drive tool is included for spring tension and ride height adjustment.
Instructions and Tool are included.
Note: FLSTN models have a 1" lowered ride height from the factory so these shocks must be adjusted accordingly. When reducing ride height, always check headlight aim and correct lean angel on jiffy stand.

Part#: M29097 - Fits Softail 1989/1999 ... $556.16 including free shipping*

Part#:M29098 - Fits Softail 2000/Later ... $463.46 including free shipping*

NEW!

Pair of motorcycle shocks for 2000 and later softails.

Shocks include hardware and tool.

SHOCK ABSORBER PAIR FOR 2000/LATER SOFTAIL - V-Factor

High quality replacement shock absorber.
Non-adjustable.
Adjust able spring preload.
Includes preload adjusting tool.
Includes rubber bumpers and chrome plated cup washers.

Part#:M29010 - Chrome Plated Set, Fits Softail models 2000/Later (except FXST Rocker models) ... $
147.81 including shipping*

Adjustable Length Shock Absorbers for Softails.

Optional Shock Absorber Tool

Optional Tool

Adjustable Length Shock Absorbers for Softail - V-Factor

Adjustable on bike.
Shock length can be adjusted from minus 1/2" through plus 1 1/2".
Adjustable spring preload. Use Mid-USA tool part 29224.
Instructions included.
Sold in pairs.

Adjustable length shock absorbers. Fits Softail 1989/1999 & most custom Softail style frames. Chrome plated.
Part #M29096 - Price $148.89 including free shipping*

Optional with purchase: Shock Absorber Tool Part #M29224 ...$9.95 (ships free with shocks).

Options:

NEW!

Burly Slammer Suspension lowering drop kit for Big Twin, Dyna and Sportser motorcycles.

 

More Sportster Shock Items Here

SLAMMER SUSPENSION DROP KITS FOR BIG TWIN TOURING, SOFTAIL, DYNA & SPORTSTER - Burly Brand

Go from stock to slammed in about an hour!
The Slammer is a complete lowering kit in one box.
No disassembly of forks required, they can stay on the bike while you work!
No special tools needed for installation.
The shocks included in the kit lower the rear up to 2 1/2" and the fork springs lower the front up to 2".
Kit includes two 10 1/2" shock absorbers, two Slammer fork springs, two helper springs, two spring spacers, one spanner wrench, one lube packet, and complete installation instructions.
Made in the U.S.A.

Part#:M36544 - Fits Touring models 1980/1999 ... $278.05 including free shipping*

Part#: M36545** - Fits Softail 1989/1999 ... $173.12 including free shipping*

Part#: M36546** - Fits Softail 2000/Later ...$173.12 including free shipping*

Part#: M36542 - Fits Dyna 1991/2005 (except FXDWG) ...$278.05 including free shipping*

Part#: M36543 - Fits Dyna 2006/Later ...$278.05 including free shipping*

Part#: M36540 - Fits Sportster 1988/2003 ...$278.05 including free shipping*

Part#: M36541 - Fits Sportster 2004/Later...$278.05 including free shipping*

**Includes rear lowering kit, NOT replacement shocks.

Motorcycle lowering block kit.

M29226

 

REAR LOWERING BLOCK KITS FOR BIG TWIN (lowering kits for Sportster on Sportster Shock page. ) - Burly Brand
  • Reduces the rear ride height by repositioning the lower shock mount further back.
  • More economical than buying shorter rear shocks.
  • Easy to install.
  • Includes installation instructions and all required hardware.
  • Prices include shipping*. Burly Brand. Made in the U.S.A.

    CHART BELOW:

motorcycle lowering block kits - please refer to chart below.

M29207

motorcycle lowering block kits - please refer to chart below.

M29249

motorcycle lowering block kits - please refer to chart below.

M29232

motorcycle lowering block kits - please refer to chart below.

M29241

Model & Year Ride Height Special Notes Finish Part # Price Buy Now
FLH & FLT 1985/1996 (air shock models)
-1-1/2"
Some models require modification to the saddlebag mount for sufficient clearance. Black M29226 $106.78
FLH & FLT 1997/2001
- 1"
Will not fit FLHRCI (Road King Classic with OEM hard leather saddlebags). Black M29243 $106.78
FLH & FLT 2002/2003
-1"
Some models require modification to the saddlebag mount for sufficient clearance. Do not use with lowered shocks. Black M29249 $106.78
FLH & FLT 2004/Later
-1"
Will not fit classic models with OEM hard leather saddlebags. Black M29249 $106.78
FXR 1987/1994
-2"
Will not fit FXRT or FXRP with OEM saddlebags. Chrome M29232 $107.95
Dyna (FXD) 2000/2001
-1"
Will not fit FXDS convertible with OEM saddlebags or FXDL. Use with 12-1/2" OEM shocks only. Polished M29241 $125.58
For SPORTSTER Lowering Block Kits go to the Sportster Shock Page.
Rear Fork Lowering Kit for Softail 2000/Later.

REAR FORK LOWERING KITS FOR SOFTAIL - Progressive Suspension

These kits are designed to be used with OEM rear shocks to lower a Softail model motorcycle as much at 2" depending on the kit used. Kits are chrome plated. After the shocks are removed from the bike, installing the kit can be done by using a shop press. Installation instructions are included.

Part#:M29238 - Chrome plated adjustable kit. OE height to 2" lower. Includes rubber bumpers and cup washers. Fits Softail 2000/Later. ... $127.83 including shipping*

*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. Sorry, 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.

FREQUENTLY ASKED QUESTIONS

Please note that all prices are subject to change.

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Steel Thunder Custom Cycles

3418 Teagues Road

Marshfield, MO 65706

417-468-2326

We hope you'll come visit us ... we'd love to see your ride!

 

 

With God All Things are Possible!

 

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