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DRI BUYERS GUIDE - KAWASAKI KFX400 |
| Prices subject to change without notice |
Buyers Guide Shortcut Links

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Easy Installation · Unlimited Tech Support · Excellent Start Up Performance Mods.
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| #BK4-2Z40 |
$692.00 |
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·INCLUDES: Complete Fat Boy 4 Exhaust System (with STD Muffler), Jet Kit, Pro Flow Air Cleaner Kit (Pro Flow flange, K&N, Outerwear)
·PERFORMANCE GAIN: 4+HP
·INSTALLATION: 2-3 hours
Stage 1 Power Kits are designed to work with most DRI engine kits. |
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| To purchase the Stage 1 Kit click here |
S-1 Bolt-On Kit |
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·INCLUDES: S-1 Bolt on Kit , Complete Fat Boy 4 Exhaust System (with STD Muffler), Jet Kit, Pro Flow Air Cleaner Kit (Pro Flow flange, K&N, Outerwear), Vortex X10 CDI, DRI Graphics & Seat Cover Kit
·PERFORMANCE GAIN: 5+ HP+
·INSTALLATION: 3-5 Hours
* NOTE- Please choose the correct year when ordering the S-2 Kit to insure your receive the correct Vortex X10 CDI
Choice of Green, Yellow or White graphics see below
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| S-2 Bolt On Kit w/Yellow Graphics |
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| To purchase the Stage 2 Kit click here |
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435 National Kit
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| #EK-24NT-47 |
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·INCLUDES: Fat Boy 4 Complete Exhaust System, Stroker Crank, 470 Piston kit, Cylinder Bore and ReNikasil, Steel headgasket Camshafts, HP4 Kit (DR Porting-with guides out, SERDI Valve Seat Cut, Big Valve Kit, HD Valve Springs w/Titanium Retainers, Shortened Bronze, Instructions, DR Tech Support.
*EK-24NT-47B includes oversized stainless intake and exhaust valves
·PERFORMANCE GAIN: 10-15 HP Gain depending on Kit
·COMPRESSION OPTIONS: 12-1
·CAMSHAFT OPTIONS: (to see options below click here)
·FUEL: 105-112 Octane Race Gas
·AIR/FUEL: Rejet stcok carb or upgrade to 40mm FCR
·AIR CLEANER: Recommend Pro Flow K&N Kit
·CORES REQUIRED: Cylinder, Head, Camshafts.
*Crankshaft core required on 470 Kit
·NEW CORE PRICING: Head $579.00 , Cylinder $525.00 , Cam $300.00
| ·UPGRADE OPTIONS: |
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| Vortex CDI (03-04) |
#VT-2400 |
$499.95 |
| Vortex CDI (05-08) |
#VT-2405 |
$499.95 |
| FCR Carburetor |
#K-FCR40-ST |
$599.00 |
| Pro Flow AC Kit Foam |
#PD-220 |
$129.95 |
·DELIVERY TIME: 3-4 weeks
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·NOTES: Kit
Price is plus any OEM parts.
Customer must send in to DRI their; Cylinder,
Head, Camshaft for modification. (or purchase new cores)
*Clutch upgrade is mandatory on 470 kit. A skilled technician must install
Kit
*Crankshaft required on 470 kit |
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·All Fat Boy 4 Exhaust Systems with FREE jet kit included with instruction packet
·Made in USA · Professionally Designed and Developed to offer Maximum Performance · Stainless Steel Header and Tail pipes · CNC Stainless Steel Header Flanges · CNC Machined Front and Rear End Caps · Stainless Steel Muffler Core-Rebuildable · Repackable-Limited Lifetime Warranty |
FAT BOY 4 Complete Stainless Exhaust System
(with Standard Muffler) |

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#FB4-ESZ400
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$599.00 |
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| To purchase the Fat Boy 4 System click here |
Fat Boy 4 Exhaust System |
| FAT BOY 4 HQ Complete Stainless Exhaust System |
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| (with HQ Muffler) |
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| #FB4-ESZ400-HQ |
$649.00 |
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| Features: 30% larger volume, redesigned packing and core. Reduces sound output by
3-4 db. |
| To purchase the Fat Boy 4 HQ System click here |
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| Optional Accessories |
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| #FB4-4A250 |
$39.95 |
Turndown (bolts on with o-ring) |
| #06-554 |
$17.95 |
Spark Arrestor
(requires turndown) |
Fat Boy 4 w/turndown |
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1.Turndown bolts on rear end cap, with o-ring seal.
2.To use spark arrestor turn down is required.
*Rejetting is required, with installation of all Fat Boy 4 exhausts. |
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| QP-2 Quiet Tip ** Available in silver only |
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| #FB4-QP-2 |
$129.95 |
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·Bolts on rear end cap of Fat Boy · Lowers DB readings a minimum of 2-3 dbs · Forestry approved when used with screen.
* Note: Some rejetting may be required. |
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| To purchase the QP-2 Quiet Tip click here |
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Fat Boy 4 with QP-2 |
| To purchase Fat Boy 4 Accessories click here |
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| To purchase Fat Boy 4 Replacement Parts click here |
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QP 2 with screen |
| Custom Colored FAT BOY 4 Mufflers * at additional cost |
Custom anodized color components (muffler, end cap & turndown) are at an additional cost to the base price for the Fat Boy 4 and the components (Turn down & End cap).
*Available by special order only
**Lead time can be 1-2 weeks
Fat Boy 4 mufflers are available in a Black, Red or Blue anodized finish.
Muffler bodies, rear end caps or turndowns are available colored individually or as a complete package.
*DRI cannot guarantee colored anodized mufflers will not fade over time.
**Custom Color prices are in addition to the regular Fat Boy 4 price Example:
KFX400 Fat Boy 4 Complete Exhaust System- $599.00
Custom Colored Muffler and Endcap + $114.90
Total cost with color option = $713.90
| Purchase Options : |
Additional cost of anodizing |
| #FB4-A3PCO |
$129.95 |
3-piece package; Muffler, End Cap and Turndown |
| #FB4-A1ECO |
$24.95 |
End Cap ONLY |
| #FB4-A1TDO |
$24.95 |
Turndown ONLY |
| #FB4-A1MFO |
$89.95 |
Muffler ONLY |
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Custom Blue |
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Custom Colored End Caps |
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Custom Colored Mufflers |
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Custom Colored Turndown
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| JE Forged Piston Kits |
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| Standard and Big Bore forged pistons available- Call for details. |
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| See chart in JE Piston section for part numbers |
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JE Piston Photo |
| FCR Carburetor 40mm |
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| K-FCR40-ST |
$599.00 |
| * Throttle and cable additional cost |
| Throttle and Cable Options: Call for details |
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40 MM FCR |
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40 MM FCR Installed |
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| Replacement
Head Gasket |
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| #H1045027S |
$39.95 |
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| * For 435/470 engine |
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| Vortex
Ignition |
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| #VT-2400 (03-04) |
$499.00 |
| #VT-2405 (05-08) |
$499.00 |
| ·Instant Plug-In Performance · 10 Selectable Power Curves · V Boost Booster for Maximum Spark Energy ·Programmable Rev Limit-Race Proven performance and Reliability · 12 Month Warranty from DOM. |
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Vortex CDI |
| NOTE: Ignition curve advance limited because of stock flywheel pick up location. Only allows limited ignition curve modification. Moderate
power gain in low to mid range. |
| To purchase the Vortex click here |
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| Chain
Guards (silver, red, black, green) |
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| #DR-24CG |
$29.95 |
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| To purchase the Chain Guard click here |
Chain Guards |
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| DRI
HP4 Valve Train Kits |
| · In House Cylinder Porting & Valve Seat Machining · Flow Bench Tested-Big Valves ·Heavy Duty Valve Springs ·Shortened Guides ·High Performance Camshafts |
| HP4
Kit with DRI Porting & SERDI Valve Seat Machining |
| #DR-327KP |
$1195.00 |

DRI HP4 Kit with Porting |
·INCLUDES: DR Porting, SERDI Valve Seat cut, Hardfaced camshaft (see options below), HD Valve springs, 4 shortened guides, 4-piece Big Valve Kit ( IN, EX) * Head will be reassembled by DRI
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| ·PERFORMANCE GAIN: up to 5 HP* |
| *Results vary depending on camshaft profile and piston compression. |
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| HP4
Kit without DRI Porting |
| #DR-327K |
$775.00 |
·INCLUDES: Hardfaced camshaft (see options below), HD Valve springs, 4 shortened guides, 4-piece Big valve kit ( IN, EX)
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*Notes:
* This kit does not include DR porting and SERDI Valve seat cut
**Kit must be installed by a trained professional |
| DRI HP4 Kit w/o Porting |
| ·CORES REQUIRED: Cylinder, Head, Camshafts |
| ·NEW CORE PRICING: Head $579.00 , Cylinder $525.00 , Cam $300.00 |
| ·INSTALLATION: Kit must be installed by a trained professional |
| ·DELIVERY TIME: 2-4 weeks |
| X94 Grind Camshaft |
X510 Grind Camshaft |
| Part #:327-X94 |
Part #:327-X510 |
Specifications: Bottom/Midrange Cam, Lift: .385”/.370", Duration 248°/252°)
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Specifications:Midrange/Top End Cam, Lift: .427"/.385", Duration 257°/252° |
| Application:Baja/Cross Country |
Application: Motocross |
| Notes: 1, 4 |
Notes: 1, 2, 3, 4 |
| ·NOTES: |
| 1.HD Valve Springs are required for this camshaft. |
| 2.Shortened Bronze Guides are required for this camshaft. |
| 3.New or modified piston required for this camshaft. Additional valve pocket relief in piston is required due to increased camshaft lift. |
| 4.Customer must send in stock camshaft core. If no core is supplied, customer must pay core charge of $300.00 |
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| Camshafts (stock core
required) |

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| Camshafts sold separately · Hard Faced Made in the USA |
| Grind options and application notes listed above |
| X94 |
#327-X94 |
$309.00 |
| X510 |
#327-X510 |
$309.00 |
| *Core charge $300.00 if no useable stock core is supplied |
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| Big Valve Kit |

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| ·Kit
Includes: (4) +1mm Stainless Steel Oversized IN & EX Valves. |
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| Valve
Spring Kits |

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| HD Springs with titanium retainers. Required with all DRI camshafts |
| HD Spring Kit with Titanium
Retainers |
#60-60045 |
$185.00 |
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HD
Valve Springs |
| Shortened
Bronze Guides |
#60-6060 |
$19.95
ea. |
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Shortened Bronze Guides |
| HINSON
Billet Clutch Basket ('03-'05) |

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| #H252 |
$249.99 |
· CNC Machined from T-6 7075 Billet aluminum
· All Hinson clutch components are treated with a Unique Akadize process, Lovett, for maximum durability.
· Hinson Clutch Baskets are stronger; wear longer, lighter and machined to enhance the oiling of the clutch
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| To purchase the Hinson Clutch Basket click here |
Billet Clutch Basket |
| DRI Clutch Kit |
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| DR Clutch Kit ('03-'04) |
#DR-C24 |
$175.00 |
| DR Clutch Kit ('05) |
#DR-C2405 |
$199.00 |
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| To purchase the Clutch Kit click here |
Clutch Kit |
Pro Flow Kit
(flange w/Uni w/wrap) |
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| #PD-221 |
$129.95 |
| #PD-221A |
$45.00 |
| (Uni replacement Filter) |
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Pro Flow Uni Kit |
K&N Pro Flow Kit
(flange with K&N w/ outerwear) |
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| #PD-220 |
$129.95 |
| #PD-220A |
$69.95 |
| (K&N Replacement for Pro Flow) |
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| #PD-220C |
$24.95 |
| (Outerwear) |
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| To Purchase the Pro Flow Kit click here |
Pro Flow Kit |
Complete
Engine Rebuilding
(Tear down & Reassembly) |
#ER-4445 |
$650.00 |
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| Head
Port and SERDI Cut |
#PO-4VLV-VJ |
$495.00 |
| (includes R & R guide) |
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| Cylinder
Bore & Hone |
#MS-704S |
$75.00 |
| Valve Job |
#MS-8004 |
$200.00 |
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Complete Engine Disassembled |
| (Install, Bore, Surface) |
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| Flywheel
Mod |
#MS-5000 |
$85.00 |
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| *ALL
ENGINE SERVICE PRICES PLUS PARTS. |
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| LOBO
II FRONT SUSPENSION KITS |

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| #RD-LB240F |
$2995.00 |
| ·Made in USA-4130 Chromally Oversized Gullwing Lower A-Arms · Maximum Wheel Travel-Enhanced Steering · Linear Motion Ratios Improves: Braking, Weight Transfer and Corner Stability · Encapsulated Upper Ball Joints · Desert-Motocross-Multiple Shock Options:Elka-Fox-Axis · All Kits Include Crown Steel Braided Front Brake Line Kit |
LOBO II F. Suspension Kit |
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| Includes: Lobo A-Arms, Axis or ELKA shocks, Tie Rods, CROWN Brake Lines, Upper & Lower A-Arms come powder coated. |
| For chrome Plates upper arms add $250.00 |
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| For custom powder coat colors in additional charge may apply |
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| DR
Chrome Front Bumper |

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| #DR-2Z40 |
$179.00 |
· Made in USA-Mild Steel-Heli-Arc Welded · Triple Plate Chrome · Fit Pre-checked on All Bumper·
* Text Black Front Bumper available by special order only.
Please call for details |
| To purchase the DRI Chrome Front Bumper click here |
DR Chrome Front Bumper |
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| Roll Design SWINGARM |

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| * Special order ONLY- Call for details |
| $1395.00 |
| $90.00 |
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Swingarm |
| Roll
Design Steering Shaft |
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| Anti Vibe handlebar mount kit sold separately |
| #405201 (03) |
$349.95 |
| #405201-T (04-05) |
$349.95 |
(Black Only-Cast Stainless Head)
(Standard [stock bars] or Extended [T2 M/C type bar] Length) |
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| Anti-Vibe Handlebar Mount Kit |
| Roll
STD (7/8) |
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| #4766 |
$89.95 |
| Roll
Oversized (1 1/8) |
| #4734 |
$89.95 |
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| Skidplates |

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| *Call for more details |
| Swingarm |
$159.95 |
| Engine (Gylde) |
$124.95 |
| Chassis |
$49.95 |
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| “CROWN”
Series Brake Lines (Std. or +2) |
| STD Front |
#CR-5200 |
$109.50 |
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| Front +2 |
#CR-5225 |
$109.50 |
| Rear |
#CR-5250 |
$39.95 |
| Available in: red, blue, yellow, smoke, clear
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| To purchase the CROWN Series Brake Lines click here |
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| ROLL ATV Foot Pegs |
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| #305201-K |
$199.00 |
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| To purchase the Roll Foot Pegs click here |
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Foot
Peg - Kick Up |
| TEAM FIRESTICKS AXLES +3 |

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| #M-0201-2201 |
$449.00 |
*Uses stock OEM hubs (not included)
**TEAM has discontinued axles that use their rear wheel hub.
Replacement hubs are still available in limited quantities. Call for Details
*** Starting in mid ’07 TEAM has built all of their axles to use stock OEM rear wheel hubs. |
| ELKA
Shocks (for stock a-arms or other brand) |

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| ELKA FRONT SHOCK |
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| ELKA
REAR SHOCK |
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| ELKA REAR LINKAGE |
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| Call for details and pricing |
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ELKA |
| See chart in Suspension product section for part numbers |
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| GPR STEERING STABILIZERS |
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GPR Low Boy V-1 ATV Stabilizers are available in Standard and Remote.GPR’s Low Boy Remote includes an adjustable handlebar mounted adjuster-
for adjustment on the fly.
V-1 series offers Hi-Lo speed adjustment simultaneously. 360° of adjustment.
Stabilizers and mount kits are made from aircraft 6061 T-6.
*Standard Low Boy Stabilizers are available in Red, Blue, or Black anodizing.
**Remote Stabilizers available in Black only
*Mount Kits available in Black only |
| STD GPR Low Boy |
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| GPR Standard Low Boy |
Dampners Color Choices |
| #GPR-2Z40-LB |
$450.00 |
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| To Purchase the GPR STD Low Boy Remote click here |
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| GPR Low Boy Remote |
| #GPR-2Z40-LBR |
$495.00 |
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GPR Low Boy Remoter |
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| To Purchase the GPR Low Boy Remote click here |
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Low Boy Remote Handlebar Dial |
| Rotors Front or Rear (sold each) |


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| Pads |
$34.50 |
| Rotors |
$139.00 |
Galfer Rotors
Laser cut-To assure perfect flatness and no stress to the material. (Most other competitor’s rotors are stamped and can warp just during that process).
Galfer Pads
1054 Semi-Metallic compound (black)-Extremely versatile compound built to suit most of your costumers needs. Semi--metallic carbon based compound was made to hold abrupt temperature changes as well as to work excellent in wet or dry conditions. |
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| Motion
Pro |
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| CR
Throttle and Cable (stk carb) |
$33.50 |
| Vortex Throttle and Cable |
$48.90 |
| Clutch
Cable |
$35.25 |
| See chart in Motion Pro product section for part numbers |
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Motion Pro Throttle Cables |
| Billet
Shifter |
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| #DR-2ZAS |
$89.95 |
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Billet Shifter Installed |
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IMS
4.0 Gal. Tank black, natural, white & yellow |

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| #12-12-5511 |
$274.95 |
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| Shockwears |

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| Duncan Racing Shockwears |
| #SW-501 |
$39.95 set |
·Made for DRI by the Outerwears Co.
·Manufactured from durable, water repellant denier nylon
·Easy Installation
*Call for availability & colors |
| Duncan Racing Shockwears |


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| Duncan Racing Elka Shockwears |
| $45.00 Set |
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·Manufactured from durable, water repellant denier nylon
·Equipped with Bones, plastic inserts to help keep the material from getting pinched in the springs
·Designed to protect shocks from, mud, dirt and sand Vented for cooling air ·Duncan Racing & Elka Suspension Logos
·Easy Installation
*Call for availability & colors
*NOTE: Shockwears come in a front pair only and are designed for use with long travel shocks. |
| *Call for availability & colors |
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Duncan/Elka Shockwears |
| DRI/ONE Graphic-Seat Cover Kit |
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| Green |
#DR-DUNK4-GR |
$129.95 |
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| Yellow/Blue |
#DR-DUNS46-YB |
$129.95 |
| White/Blue |
#DR-DUNS46-WB |
$129.95 |
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| To purchase the Green DRI Graphic & Seat Cover Kit click here |
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| To purchase the Yellow-White DRI Graphic & Seat Cover Kit click here |
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| "4-Stroke" Decal Kits (call for colors and availability) |

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| #DR-874 |
$19.95 |
DRI 4-Stroke Decal Kits are 11 in. x 17 in. filled with different sizes of multiple DRI brand logos including; Fat Boy 4, Duncan Racing, DR Icon and duncanracing.com.
Made from high quality 15 mil adhesive, built to last. |
| To purchase the Decal Kit click here |
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| Rear
Fender Decal Strips |
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| "4-Stroke" Red |
#DR-RF-D45-R |
$18.95 |
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| "4-Stroke" Blue |
#DR-RF-D45-B |
$18.95 |
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| "4-Stroke" Silver/Red |
#DR-RF-D45-SR |
$18.95 |
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| "4-Stroke"
Silver/Blue |
#DR-RF-D45-SB |
$18.95 |
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| To purchase the DRI Rear Fender Decals click here |
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| DR Number Plates (3pc set) |
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| ** Please Note: These are the DECAL BACKGROUNDS and not the plastics |
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| WHITE |
#DR-850 |
$24.95 |
Red |
Black |
| BLACK |
#DR-825 |
$24.95 |
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| RED |
#DR-840 |
$24.95 |
| BLUE |
#DR-830 |
$24.95 |
| YELLOW |
#DR-835 |
$24.95 |
| GREEN |
#DR-827 |
$24.95 |
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| To purchase the Number Plates click here |
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All
Contents Copyright © Duncan Racing International - All
Rights Reserved
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