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The Official Duncan Racing ATV Buyers Guide


YOUR GUIDE TO THE HONDA TRX 250R      (page 2 of 3)

ENGINE SERVICES

Compete Engine Rebuilding                  #ER-1111                      $495.00
(Complete Tear Down & Reassembly)

Cylinder Boring with ELITE Hone          #MS-70EH                      $85.00
(include port chamfer, cylinder wash)

Modified Flywheel


Flywheel Mod                                        #MS-5000                      $85.00 
(Improves throttle response)

Super Flow Carb Mod                            #MS-FLOW                   $60.00
(Increase carb efficiency)


Crankshaft Rebuild                                  #MS-9011                     $125.00
(replace rod assy. + rod assy price)

PTR Cylinder Porting & Stock Head Rechambering                      $495.00

PTR Cylinder Porting without head mod.                                      $475.00
(Must use POWERHEAD.)
Customer must send in their cylinders for port modification. Prices plus boring and pistons.

PORT TYPE OPTIONS (for stock cylinder) NATIONAL (XC or Midrange), ELIMINATOR (Mid-Top Combo), HIGH REV (Top End)

Stock Head ReChambering                                                            $75.00


INDIVIDUAL ENGINE COMPONENTS


TRX 250R Exhaust Systems
(DRI also offers a complete line of ATC 250R Exhaust Systems see ATV Products Section on this Website)

PTR TYPE 6 Pipe & Fat Boy 2 STD Silencer

PTR TYPE 6 Pipe (low end)
Pipe & Fat Boy 2 STD Silencer 
        
#PT-1SPT6           $
409.95

To purchase the PTR Type 6 Pipe click here

PTR Midrange RACE Pipe
Pipe & Fat Boy 2 STD Silencer  
       #PT-1SPTR           $409.95

To purchase the PTR Midrange Pipe click here

PTR Midrange RACE Pipe

 

PTR ELIMINATOR Pipe                     #PT-125E-98          $449.00
(
Chrome only, w/o silencer)

To purchase the PTR Eliminator Pipe click here

PTR Eliminator Pipe

PTR TYPE 6 Pipe (low end)
Pipe & Fat Boy 2 QT Silencer    
      #PT-1SPT6-Q        $419.95

To purchase the PTR Type 6 Silencer click here 

PTR Midrange RACE Pipe &
Fat Boy 2 QUIET Silencer   
               #PT-1SPTR-Q       $419.95

To purchase the PTR Midrange Pipe click here

* Except when noted all pipes supplied with Factory Metal Finish. 
Pipes may be ordered with Triple Plate Chrome add $
120.00 Part # CP-9000N

PTR Fat Boy 2 STD Silencer     
                 #FB-T25S            $159.95

To purchase the PTR Fat Boy 2 STD Silencer click here


PTR Fat Boy 2 Quiet Silencer                    #FB-QT25            $169.95

To purchase the PTR Fat Boy 2 Quite Silencer click here

PTR Fat Boy 2 STD Silencer
PTR Fat Boy 2 Quiet Silencer

 


Spark Arrestor               $75.00 each
(3” Universal Bolt onto Fat Boy 2 STD Silencer. Will not work on Quiet model)

 

Billet Exhaust Clamp                              

#EXC-250-PT              $35.00

Dual O-Ring Exhaust Flange


Dual O-Ring Exhaust Flange
  (Heat Treated Steel)                    

#DR-11100                 $79.95



ENGINE

PTR Powerhead

PTR POWERHEAD without Head stay         #PH-1000                $219.00
(use oem style head gasket) 
PTR POWERHEAD with Headstay              #PH-100H                $229.00
(use oem style head gasket)

Replacement Dome Sets (all sizes)                  #PH-100D-               $39.95

IMS Pro Series Rod Kits    ’86 ATC/TRX     #42-2204                 $89.95
IMS Pro Series Rod Kits    ’87-‘89/TRX       #42-2205                 $89.95

PROX Piston Kits   #0280 - #0292           $109.95
(STD-
4th)   (piston, rings, pin, clips) ’86 model

(5th and above)   (piston, rings, pin, clips) ’86 model          $119.95                                      

    

PROX Piston Kits   #4320 - #4328           $109.95
(STD-8th)   (piston, rings, pin, clips) ’87-89 model 

 

BALANCER

Rebuilt Balancer  (core required)                                 #R-13350                $150.00

Base Plates (required for various piston, cylinder, rod combinations)

2.0mm Base plate                                                 #DR-1020                     $39.95
3.0mm Base plate         
                                        #DR-1030                     $39.95
4.5mm Base plate         
                                        #DR-1045                     $39.95
4.5mm Base plate
                                                   #DR-1045-685               $39.95
(machined for 330cc-350cc cylinders)

 

Pyramid Reed Valve
INTAKE

Pyramid Reed Valve                                       #PRV-100                $199.00



 

Keihin PJ Carburetor

Keihin 34mm PJ Carburetor                          #K-34PJ                  $185.00
Keihin 36mm PJ Carburetor 
                        #K-36PJ                 $2
35.00
Keihin 37.3mm PJ Carburetor
                            #K-373PJ                $299.00

(Bored & Super Flowed)  
Keihin 38mm PWK Air Stryker Carburetor    #K-38PWK-AS        $235.00
Keihin 39mm PWK Carburetor                              #K-39PWK             $2
49.00

Carbs are sold without throttle and cables. These items must be
purchased separately at an additional cost.

SUPER FLOW Mod is available to all carbs ordered (except when noted) add additional $ 60.00 each.

Keihin Jet Kit (2-pilot jets, 2-needles, 4-main jets)      #K-JK01                   $45.00

Billet Air Box Ring                                      #HR-1001                  $12.50 ea.

K & N Filter                                                   #HA-4250                  $49.95

Outerwear(for K & N Filter)                                     #Q-15-6T                  $19.95

 

Hinson Billet Clutch Basket

CLUTCH

Hinson Billet Clutch Basket (7-plate)      #H014                 $239.99

To purchase the Clutch Basket click here



DRI 7-Plate Clutch Kit 
             
               #DR-C12              $189.00

To purchase the 7-plate Clutch Kit click here

Hinson 8-Plate Clutch Basket

DR 8-Plate Clutch Kit                              #DR-C128            $199.00

*To use 8-Plate clutch kit a Quick Change Clutch cover must be used
  for necessary clearance.

To purchase the 7-plate Clutch Kit click here

 

 

Yukon HD Gear Set

Yukon HD Gear Set                           #YK-G23456           $599.00
Includes 5 gears (C/S Gears 2nd-6th) '87-89 ratio.
*If used in '85-86 engines, 5th &6th gear on M/S MUST be changed to '87-89 model OEM gears.


 


CHASSIS

DR Chrome Bumper

DR CHROME FRONT BUMPER     

#DR-1000               $179.00

To purchase the DRI Chrome Front Bumper click here


 

LOBO II Kit

LOBO II FRONT SUSPENSION KITS    
#RD-LB212F             $2995.00


Kit includes: Lobo A-Arms, ELKA or AXIS Shocks, Tie Rods, Brake Lines (for Chrome Top Arms add $ 150.00)

LOBO II Kits utilize patented Roll Gull Wing style A-Arms, Special Long Travel shocks.
Overall handling and suspension is greatly enhanced over stock +2 arms sets.
This front-end kit is hands down the best product on the market, by a large margin.

LOBO II

Kits available for: MX, XC, Desert, and TT

 



Roll Design Swingarm

ROLL DESIGN SWINGARM           
#RD-SW1R                      $1
395.00
Add $ 90.00 for Chain Slider


ELKA Shocks

ELKA Shocks      

Replacement Model        Front pair without reservoirs         from $515.00

Sport Model                   Front pair with reservoirs               from $715.00
Sport Model                   
Rear with reservoir                        from $745.00

 

Call DRI for specific application needs and part numbers
regarding Elka shocks and or see ELKA section in
ATV PRODUCTS section on this website

 

AXIS Shocks

 

AXIS SHOCKS (stock replacement/Upgrade)

Rear   from
      $750.00
Fronts from      $850.00


 

 


GPR STEERING STABILIZERS

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
           

GPR Standard Low Boy #GPR-1000-LB   $450.00

To Purchase the GPR STD Low Boy Remote click here

STD GPR Low Boy
Dampners Color Choices

 

 

GPR Low Boy Remote#GPR-1000-LBR   $495.00

To Purchase the GPR Low Boy Remote click here

GPR Low Boy Remoter
Low Boy Remote Handlebar Dial
Roll Steering Stems

Roll Steering Stems       #402202                        $349.95
(STD or Extended)
All stems require Anti-Vibe bar clamp set at additional cost.

ANTI Vibe Mount Kits      
Roll STD
(7/8)                      #4766                             $89.95
Roll over sized
(11/8)          #4734                             $89.95

"CROWN" Braided Brake Lines

“CROWN” Series Steel Braided Brake Lines  
Front 
STD
                          #CR-5100                       $109.50
Front 
+2”
                           #CR-5125                       $109.50
Rear                                  
#CR-5150                         $39.95

Color Options: Clear, Smoke, Red, Blue, Yellow, Green

 

BILLET FRONT HUBS       
#DR-1FH9
              $349.00

Billet Front Hubs

ROTORS           
Wave Front 88-89              
#DF-712W
                     $130.00 ea.

Wave Rear                        
 #DF-713W
                     $130.00



BRAKING PADS

Front              
#772             $29.99
Rear               #667             $29.99


TEAM FIRESTICKS AXLES +3
#TM-420620             
$399.00
*Uses stock OEM hubs (not included)
**TEAM has discontinued axles that use their rear wheel hub.
Replace 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.


ANTI-FADE Rear Axle Lock Nut 
    
#12100           $249.00

MILLENNIUM REAR CARRIER       #11100           $249.00

SKIDPLATES         

Engine           

 #H-111      $64.95

Swing Arm (86)         #H-105       $109.95

 

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