91 products
Sort by
Sort by
Save 33%
ATV Wheel Hub Lug Nuts Kit For Honda TRX450 R / ER 250X 400X ATC250R ATV Wheel Hub Lug Nuts Kit For Honda TRX450 R / ER 250X 400X ATC250R
ATV Left + Right Frame Covers Guards For Honda TRX450 R / ER 2006-2009 ATV Left + Right Frame Covers Guards For Honda TRX450 R / ER 2006-2009
Rear Brake Fluid Reservoir Cap For Honda TRX 450 R / ER 400EX Rear Brake Fluid Reservoir Cap For Honda TRX 450 R / ER 400EX
Throttle Case Cover Guard w/Gasket For Honda TRX 450 R / ER 2006-2014 Throttle Case Cover Guard w/Gasket For Honda TRX 450 R / ER 2006-2014
Save 88%
Universal Nitrogen Regulator Shock Fill Kit 8' Hose w/ CGA580 Connection Universal Nitrogen Regulator Shock Fill Kit 8' Hose w/ CGA580 Connection
Universal Nitrogen Regulator Shock Fill Kit 8' Hose w/ CGA580 Connection
Sale priceFrom $17.99 Regular price$149.99

4 colors available

ATV M10 Wheel Locking Lug Nuts Studs Kit For Yamaha Raptor 700 Honda TRX450R ATV M10 Wheel Locking Lug Nuts Studs Kit For Yamaha Raptor 700 Honda TRX450R
ATV Magnetic Oil Drain Bolt Plug w/ Gaskets For Honda TRX 450 R / ER TRX300X 250X 90X ATV Magnetic Oil Drain Bolt Plug w/ Gaskets For Honda TRX 450 R / ER TRX300X 250X 90X
Save 12%
Rear Wheel Axle Lock Nut Assembly For Honda TRX 450 R / ER 250X 400X 400EX Rear Wheel Axle Lock Nut Assembly For Honda TRX 450 R / ER 250X 400X 400EX
Rear Wheel Axle Lock Nut Assembly For Honda TRX 450 R / ER 250X 400X 400EX
Sale price$22.99 Regular price$25.99

1 color available

Clutch Cable Holder Receiver Bracket Guide For Honda TRX 450 R 2004-2005 Clutch Cable Holder Receiver Bracket Guide For Honda TRX 450 R 2004-2005
Fuel Petcock Turn Lever Switch Knob Screw For Honda TRX 450 R / ER 06-14 Fuel Petcock Turn Lever Switch Knob Screw For Honda TRX 450 R / ER 06-14
Cam Chain Tensioner Adjuster For Honda CRF 150-450 TRX450R 2006-2009 Cam Chain Tensioner Adjuster For Honda CRF 150-450 TRX450R 2006-2009
Rear Brake Master Cylinder Joint Connector For Honda TRX450R 400X CBR650R 300R Rear Brake Master Cylinder Joint Connector For Honda TRX450R 400X CBR650R 300R
Transparent Oil Filter Cover Cap For Honda TRX 450 R 2004-2005 Transparent Oil Filter Cover Cap For Honda TRX 450 R 2004-2005
2PCS A-Arm Brake Line Cable Clamps For Honda TRX 450 R ER 250X 90X 400X 2PCS A-Arm Brake Line Cable Clamps For Honda TRX 450 R ER 250X 90X 400X
Dual-Size Rear Brake Line Hose Clamp Holder Kit For Honda TRX 450 R / ER 06-14 Dual-Size Rear Brake Line Hose Clamp Holder Kit For Honda TRX 450 R / ER 06-14
Lower Chain Roller Slider Guide Kit For Honda TRX 450 R ER CR250R CRF250X Lower Chain Roller Slider Guide Kit For Honda TRX 450 R ER CR250R CRF250X
ATV Parking Brake Block Off Plate Kit For Honda TRX450R TRX250X TRX400EX ATV Parking Brake Block Off Plate Kit For Honda TRX450R TRX250X TRX400EX
Fuel Tank Seat Washer & Bolt Kit For Honda TRX 450 R / ER 2006-2014 Fuel Tank Seat Washer & Bolt Kit For Honda TRX 450 R / ER 2006-2014
Crankcase Engine Plugs Bolts For Honda TRX450R 2004-2009 CRF250R CRF450R Crankcase Engine Plugs Bolts For Honda TRX450R 2004-2009 CRF250R CRF450R
ATV Front Brake Fluid Reservoir Cover For Honda TRX 450 R / ER TRX 250X 400X 700XX ATV Front Brake Fluid Reservoir Cover For Honda TRX 450 R / ER TRX 250X 400X 700XX
ATV Swingarm Pinch Bolts Head Socket For Honda TRX 450 R ER 400EX ATV Swingarm Pinch Bolts Head Socket For Honda TRX 450 R ER 400EX
ATV Tail Light Connector Pigtail Plug Harness For Honda TRX 450 R / ER 2006-2014 ATV Tail Light Connector Pigtail Plug Harness For Honda TRX 450 R / ER 2006-2014
UTV ATV 12V 20A LED Light Rocker Switch ON-OFF Toggle Switch Laser UTV ATV 12V 20A LED Light Rocker Switch ON-OFF Toggle Switch Laser
ATV Adjustable Rear Suspension Lowering Kit For Honda TRX450R ATV Adjustable Rear Suspension Lowering Kit For Honda TRX450R
Save 10%
Oil Pump Driven Gear #15133-MEB-670 For Honda TRX 450 R ER 06-14 Oil Pump Driven Gear #15133-MEB-670 For Honda TRX 450 R ER 06-14
Save 18%
Adjustable A-Arm Brake Line Hose Clamp For Honda TRX 450 R 250X 400X 90X 700XX Adjustable A-Arm Brake Line Hose Clamp For Honda TRX 450 R 250X 400X 90X 700XX
Adjustable A-Arm Brake Line Hose Clamp For Honda TRX 450 R 250X 400X 90X 700XX
Sale priceFrom $13.99 Regular price$16.99

3 colors available

Engine Oil Filler Cap Plug For Honda TRX450R 2004-2009 Yamaha YZ65 YZ85 YZ250F Engine Oil Filler Cap Plug For Honda TRX450R 2004-2009 Yamaha YZ65 YZ85 YZ250F
2X Front Brake Reservoir Cover Cap Bolt Screw For Honda TRX450R Yamaha RAPTOR 700 2X Front Brake Reservoir Cover Cap Bolt Screw For Honda TRX450R Yamaha RAPTOR 700
Save 14%
ATV Front Wheel Hub Centric Spacers For Yamaha Raptor 700 Blaster 200 Honda TRX450R ATV Front Wheel Hub Centric Spacers For Yamaha Raptor 700 Blaster 200 Honda TRX450R
ATV Front Wheel Hub Centric Spacers For Yamaha Raptor 700 Blaster 200 Honda TRX450R
Sale priceFrom $119.99 Regular price$139.99

2 colors available

1/8" NPT Nitrogen Filling Tool Valve ATV UTV Motorcycle with Schrader Valve For Yamaha Raptor 700R Can Am X3 1/8" NPT Nitrogen Filling Tool Valve ATV UTV Motorcycle with Schrader Valve For Yamaha Raptor 700R Can Am X3
ATV Crank Case Saver Chain Sprocket Cover For Honda TRX450R TRX450ER ATV Crank Case Saver Chain Sprocket Cover For Honda TRX450R TRX450ER
ATV 4 7/8" INCH 2000-3500 LBS Hawse Fairlead For Synthetic Winch Rope Cable ATV 4 7/8" INCH 2000-3500 LBS Hawse Fairlead For Synthetic Winch Rope Cable
ATV Carbon Fiber Radiator Frame Mud Splash Guard For Honda TRX 450 R / ER ATV Carbon Fiber Radiator Frame Mud Splash Guard For Honda TRX 450 R / ER
Save 38%
Upgraded ATV UTV Dual-Port Compressed Air Tank Reservoir 4L Portable 1 Gallon 150PSI Upgraded ATV UTV Dual-Port Compressed Air Tank Reservoir 4L Portable 1 Gallon 150PSI
ATV Crankcase Clutch Cover Gasket #11394-HP1-600 For Honda TRX 450 R / ER ATV Crankcase Clutch Cover Gasket #11394-HP1-600 For Honda TRX 450 R / ER
ATV Stator Cover Gasket #11395-HP1-600 Stainless Steel For Honda TRX450R TRX450ER ATV Stator Cover Gasket #11395-HP1-600 Stainless Steel For Honda TRX450R TRX450ER
ATV Graphics Decals Stickers Kit For Honda TRX450R 2004-2008 / 2010-2016 ATV Graphics Decals Stickers Kit For Honda TRX450R 2004-2008 / 2010-2016
ATV Full Sticker Decals Graphics Kit For Honda TRX 450 R 2004-2008, 2010-2016
ATV Full Stickers Decals Full Graphics Kit For Honda TRX450R 2004-2008 / 2010-2016 ATV Full Stickers Decals Full Graphics Kit For Honda TRX450R 2004-2008 / 2010-2016
ATV Top End Rebuild Kit Complete Gasket Set For Honda TRX450R 2004-2005 ATV Top End Rebuild Kit Complete Gasket Set For Honda TRX450R 2004-2005
100x ATV UTV Fender Clip Body Rivets For Honda TRX 450 400EX Polaris Sportsman Ranger RZR 100x ATV UTV Fender Clip Body Rivets For Honda TRX 450 400EX Polaris Sportsman Ranger RZR

FAQ

Pre-race Preparation

Pre-race prep commonly includes checking the water pump seal, inspecting the chain guide slider and sprocket cover for wear, and verifying the steering tie rods/ball joints aren't loose from previous impacts. NICECNC makes direct-fit replacements for all three, since they're the parts most affected by hard racing use.

Yes, thinner air at altitude and dusty desert conditions both stress intake airflow more than typical trail riding. A high-flow air filter and airbox lid cover kit, like NICECNC's, is designed to improve airflow consistency in these conditions without ECU or carb remapping.

Common protective add-ons include a skid plate for the frame/engine, a case saver over the front sprocket, and a swingarm chain guide slider — these guard the areas most exposed to rock strikes and chain debris during hard riding. NICECNC sells all three as direct bolt-on kits for the 450R.

Cooling Issues

The TRX450R's stock cooling system can struggle under sustained high-RPM racing loads, especially in summer heat. Adding an inline radiator cooler with a temperature gauge, like NiceCNC's, lets you monitor coolant temps in real time and adds extra cooling capacity beyond the stock radiator.

Riding Comfort

The stock pedal is undersized for aggressive standing riding, which many racers find limits control under braking. An enlarged brake pedal tip extension, like NICECNC's bolt-on version, gives more surface area for boot contact without replacing the whole pedal assembly.

A front/rear lowering link kit is the standard fix — it drops seat height without cutting into suspension travel as much as simply softening springs would. NiceCNC's lowering drop kit for the TRX450R (kick-start models) is adjustable from 1½" to 4½" lower than stock, letting riders fine-tune the drop rather than being locked into one fixed height.

Mods & Upgrades

The TRX450R was built as a pure competition ATV, so factory lighting is minimal or absent depending on the model year — it wasn't designed for night riding. Adding an aftermarket LED headlight kit, like NICECNC's plug-and-play 100W kit, is the standard way owners add usable light output for trail or night riding.

Look for a plug-and-play kit designed as a direct replacement for the OEM connector point. NICECNC's LED headlight kit for the TRX450R/ER replaces OEM part 81150-HP1-600 and connects to the factory wiring without splicing.

This is a common concern since many 450R owners run aftermarket exhaust systems. NICECNC's rear grab bar bumper features individually adjustable mounting lugs, letting you angle the bumper to clear a modified tailpipe rather than being locked into one fixed position.

NICECNC specializes in direct-fit CNC-machined parts for competition ATVs like the Honda TRX450R, covering cooling, chassis protection, and race-day durability upgrades built for MX and desert racing conditions.