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Dirt Bike Fenders

Dirt Bike Fenders

Dirt Bike Fenders

Dirt Bike Fenders & Body Kits for Acerbis Replacement Panels at JJ Motorsports

Replace worn fenders and body panels with premium Acerbis kits from JJ Motorsports, molded from durable ABS plastic for OEM fit and lightweight protection in motocross, enduro, and trail riding. These standard replacement sets restore factory aesthetics and durability.

Shop Acerbis body kits for precise, impact-resistant panels. Explore related categories such as dirt bike frame and body for guards and tanks, or dirt bike plastic and graphics for decals and shrouds to complete your refresh and ensure sleek, protected styling across all conditions, from rocky jumps to muddy berms.

Top Dirt Bike Fenders & Body Kits

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • POLISPORT Fender - Rear - Black - CRF 250R/450R 8579500003

    POLISPORT Fender - Rear - Black - CRF 250R/450R 8579500003

    POLISPORT

    $31.99
    Stock plastic fenders crack, fade, and cost a fortune to replace—especially when you're pushing your CRF 250R or 450R hard on the trail. The POLISPORT rear fender delivers the durability of a quality aftermarket part at a fraction of OEM pricing, with...
    14032193
    SKU:
    14032193
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - Red - CRF 450R 8560900010

    POLISPORT Fender - Rear - Red - CRF 450R 8560900010

    POLISPORT

    $31.99
    Stock fenders crack, fade, and scratch—leaving your CRF 450R looking worn after just a few rides. The POLISPORT rear fender delivers OEM-spec durability with superior impact resistance and color retention, giving you a genuine replacement that actually...
    14032194
    SKU:
    14032194
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - Green - KX 85/100 8579700001

    POLISPORT Fender - Rear - Green - KX 85/100 8579700001

    POLISPORT

    $27.99
    Your KX 85/100's rear fender takes a beating on the track and trail—mud, rocks, and impacts wear down stock plastic fast. This Polisport rear fender replaces damaged or faded OEM components with a stronger, more durable alternative that matches your...
    14032214
    SKU:
    14032214
    Availability:
    Ships Same Business Day
    Weight:
    0.93 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $27.99
    Subtotal:
  • POLISPORT Fender - Rear - Green - KX 125/250 8595100001

    POLISPORT Fender - Rear - Green - KX 125/250 8595100001

    POLISPORT

    $31.99
    Factory-original aesthetics don't have to come with factory-original fragility. Polisport's DGP rear fender delivers OEM-spec fitment and finish while offering superior impact resistance and scratch durability—ideal for riders who want their KX looking...
    14032216
    SKU:
    14032216
    Availability:
    Ships Same Business Day
    Weight:
    1.29 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - Green - KX 125/250 8561100007

    POLISPORT Fender - Rear - Green - KX 125/250 8561100007

    POLISPORT

    $31.99
    Your KX 125/250's rear fender takes constant abuse from trail debris, mud, and impact—and OEM replacements cost a fortune. This Polisport rear fender delivers OEM-replica fitment with measurably superior durability, using reinforced polypropylene that...
    14032217
    SKU:
    14032217
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - Green - KX 250F 8562900010

    POLISPORT Fender - Rear - Green - KX 250F 8562900010

    POLISPORT

    $31.99
    Stock OEM plastics crack under trail abuse, leaving your KX 250F looking weathered and exposing underlying components to damage. The POLISPORT rear fender delivers factory-exact fitment with genuine durability improvements—built from exclusive DGP...
    14032218
    SKU:
    14032218
    Availability:
    Ships Same Business Day
    Weight:
    1.41 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - Black - KX 250F/450F 8595600003

    POLISPORT Fender - Rear - Black - KX 250F/450F 8595600003

    POLISPORT

    $31.99
    A quality rear fender protects your KX 250F/450F from debris, mud, and impact damage while maintaining the OEM aesthetic your bike deserves. POLISPORT's DGP technology delivers superior durability compared to stock plastic, resisting abrasion and impact...
    14032221
    SKU:
    14032221
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - Orange - SX 65 | XC 65 8561800001

    POLISPORT Fender - Rear - Orange - SX 65 | XC 65 8561800001

    POLISPORT

    $56.99
    Stock plastic fenders take a beating on the trail—impacts, UV exposure, and abrasions wear them down fast. The POLISPORT rear fender for SX 65 and XC 65 models combines reinforced durability with exact OEM fitment, so you get the protection your bike...
    14032232
    SKU:
    14032232
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    $56.99
    Qty in Cart: 0
    Quantity:
    Price:
    $56.99
    Subtotal:
  • On Sale
    POLISPORT Fender - Rear - White - SX 85 8579400002

    POLISPORT Fender - Rear - White - SX 85 8579400002

    POLISPORT

    MSRP: $38.99
    Now: $25.00
    Was: $38.99
    A cracked or faded rear fender compromises both aesthetics and structural integrity on your SX 85. This POLISPORT replacement delivers OEM-spec fitment with superior material durability, so you can get back on the track without worrying about premature...
    14032233
    SKU:
    14032233
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    MSRP: $38.99
    Now: $25.00
    Was: $38.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $38.99
    Now: $25.00
    Was: $38.99
    Subtotal:
  • POLISPORT Fender - Rear - OEM Yellow - RM 125/250 8560200001

    POLISPORT Fender - Rear - OEM Yellow - RM 125/250 8560200001

    POLISPORT

    $31.99
    OEM replacement fenders take a beating on the track and trail—impacts, abrasion, and UV exposure degrade plastic components quickly. The Polisport rear fender delivers genuine OEM fitment and appearance while using advanced DGP (durable gloss...
    14032243
    SKU:
    14032243
    Availability:
    Ships Same Business Day
    Weight:
    1.29 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Front - '98 Blue - YZ 85 8574400001

    POLISPORT Fender - Front - '98 Blue - YZ 85 8574400001

    POLISPORT

    $30.99
    OEM-spec front fender replacements take a beating on the track and trail—cracks, splits, and sun-faded plastic are inevitable. The POLISPORT front fender for YZ 85 delivers injection-molded durability that outlasts stock plastic while maintaining an...
    14032244
    SKU:
    14032244
    Availability:
    Ships Same Business Day
    Weight:
    1.50 LBS
    $30.99
    Qty in Cart: 0
    Quantity:
    Price:
    $30.99
    Subtotal:
  • POLISPORT Fender - Rear - '98 OEM Blue - YZ 80 8563600001

    POLISPORT Fender - Rear - '98 OEM Blue - YZ 80 8563600001

    POLISPORT

    $27.99
    Your YZ 80's rear fender takes a beating, and OEM replacements can drain your budget fast. This Polisport rear fender delivers factory-exact fitment and appearance while using advanced DGP polypropylene that outlasts stock plastic in impact resistance...
    14032250
    SKU:
    14032250
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $27.99
    Subtotal:
  • POLISPORT Fender - Rear - Black - YZ 125/250 8560500002

    POLISPORT Fender - Rear - Black - YZ 125/250 8560500002

    POLISPORT

    $31.99
    Stock plastic fenders take a beating on the track and trail—UV exposure, impacts, and abrasions degrade them quickly, leaving your bike looking worn and exposed to potential frame damage. The POLISPORT rear fender delivers OEM-replica durability without...
    14032252
    SKU:
    14032252
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - White - YZ 125/X | 250/X 8579800002

    POLISPORT Fender - Rear - White - YZ 125/X | 250/X 8579800002

    POLISPORT

    $31.99
    Stock OEM plastics crack, fade, and cost a fortune to replace. This POLISPORT rear fender delivers authentic Yamaha styling with superior durability at a fraction of OEM pricing. Built from exclusive DGP (durable gloss polypropylene) technology, it's...
    14032254
    SKU:
    14032254
    Availability:
    Ships Same Business Day
    Weight:
    1.70 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - Black - YZ 125/250 8579800003

    POLISPORT Fender - Rear - Black - YZ 125/250 8579800003

    POLISPORT

    $31.99
    Your YZ 125/250's rear fender takes abuse—mud, rocks, and impacts are part of the ride. This POLISPORT replacement delivers OEM-quality durability without the OEM price tag, restoring your bike's appearance while protecting the frame and bodywork...
    14032255
    SKU:
    14032255
    Availability:
    Ships Same Business Day
    Weight:
    1.72 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - '98 OEM Blue - YZF 250/450 8561400002

    POLISPORT Fender - Rear - '98 OEM Blue - YZF 250/450 8561400002

    POLISPORT

    $31.99
    OEM rear fenders take a beating on the track and trail, and stock Yamaha plastic becomes brittle and prone to cracking after hard impacts. POLISPORT's DGP technology delivers a stronger, more durable replacement that maintains that factory '98 blue...
    14032256
    SKU:
    14032256
    Availability:
    Ships Same Business Day
    Weight:
    1.49 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - White - YZ 250F/450F 8579600002

    POLISPORT Fender - Rear - White - YZ 250F/450F 8579600002

    POLISPORT

    $31.99
    Your YZ 250F or 450F's rear fender takes a beating on the track and trail. When factory plastic cracks or fades, you need a replacement that matches OEM specs without the OEM price tag. The POLISPORT rear fender delivers genuine durability with DGP...
    14032260
    SKU:
    14032260
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Rear - Black - YZ 250F/450F 8579600003

    POLISPORT Fender - Rear - Black - YZ 250F/450F 8579600003

    POLISPORT

    $31.99
    Your YZ 250F/450F's rear fender takes a beating on the track and trail—mud, rocks, and impact wear down OEM plastic fast. This POLISPORT replacement delivers OEM-exact fitment with superior durability and impact resistance, keeping your bike protected...
    14032261
    SKU:
    14032261
    Availability:
    Ships Same Business Day
    Weight:
    1.64 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • POLISPORT Fender - Front - Black - CRF 250/450 R/RX 8553200003

    POLISPORT Fender - Front - Black - CRF 250/450 R/RX 8553200003

    POLISPORT

    $30.99
    Stock fenders take a beating on the track and trail, prone to cracking and fading under UV exposure and impacts. The POLISPORT front fender replaces damaged plastic with injection-molded components that match OEM fitment exactly while offering superior...
    14032116
    SKU:
    14032116
    Availability:
    Ships Same Business Day
    Weight:
    1.44 LBS
    $30.99
    Qty in Cart: 0
    Quantity:
    Price:
    $30.99
    Subtotal:
  • POLISPORT Fender - Front - White - CRF 250/450 R/RX 8553200002

    POLISPORT Fender - Front - White - CRF 250/450 R/RX 8553200002

    POLISPORT

    $30.99
    Stock OEM plastic fenders are prone to cracking, fading, and costly replacement cycles. The POLISPORT front fender delivers OEM-fitment durability at a fraction of the price, using injection-molded plastic engineered to resist impacts and abrasions that...
    14032118
    SKU:
    14032118
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    $30.99
    Qty in Cart: 0
    Quantity:
    Price:
    $30.99
    Subtotal:
  • Total: items /

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Dirt Bike Plastics Protect and Enhance
Customize your dirt bike with JJ Motorsports expansive selection of aftermarket plastics! From fenders to full plastic kits, you can find the perfect parts to transform your machine into a sleekly styled racing powerhouse. Even better - these high-quality pieces protect against rocks, dirt and more for enhanced safety on every ride. – pick up some fresh motocross plastic today! Our selection includes premium brands like UFO, Acerbis and Polisport.

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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