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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 - OEM White - CRF 250R/450R 8578700002

    POLISPORT Fender - Rear - OEM White - CRF 250R/450R 8578700002

    POLISPORT

    $31.99
    Off-road riding demands a rear fender that can absorb impacts without cracking or fading—the POLISPORT rear fender delivers exactly that. Built from impact and abrasion-resistant materials, this OEM-replica component maintains its glossy finish longer...
    14031859
    SKU:
    14031859
    Availability:
    Ships Same Business Day
    Weight:
    1.14 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - White - CRF 250R/450R 8579500002

    POLISPORT Fender - Rear - White - CRF 250R/450R 8579500002

    POLISPORT

    $31.99
    OEM rear fenders fade, crack, and wear down faster than you'd expect on the trail. The POLISPORT Rear Fender delivers the same fitment and appearance as stock plastic, but with superior impact resistance and durability that actually holds up to...
    14031860
    SKU:
    14031860
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Front - OEM Green - KX 80/100 8560300009

    POLISPORT Fender - Front - OEM Green - KX 80/100 8560300009

    POLISPORT

    $25.99
    Your KX 80/100 takes a beating on the track and trail, and the OEM fender won't last forever. This POLISPORT replacement delivers the exact factory fit and finish you need without the premium OEM price tag, plus it's engineered to resist impact and...
    14031862
    SKU:
    14031862
    Availability:
    Ships Same Business Day
    Weight:
    0.78 LBS
    $25.99
    Qty in Cart: 0
    Quantity:
    Price:
    $25.99
    Subtotal:
  •  POLISPORT Fender - Rear - Green - KX 85/100 8560400009

    POLISPORT Fender - Rear - Green - KX 85/100 8560400009

    POLISPORT

    $27.99
    Your KX 85/100's rear fender takes a beating on the track and trail. Factory plastic cracks, fades, and wears faster than you'd like—especially when replacement OEM parts come with premium pricing. This Polisport rear fender delivers genuine durability...
    14031863
    SKU:
    14031863
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $27.99
    Subtotal:
  • On Sale
     POLISPORT Fender - Rear - '13-'15 OEM White - RM/DRZ | KX/KLX 8561500011

    POLISPORT Fender - Rear - '13-'15 OEM White - RM/DRZ | KX/KLX 8561500011

    POLISPORT

    MSRP: $38.99
    Now: $25.00
    Was: $38.99
    OEM plastic fenders take a beating on the track and trail—UV exposure, impacts, and abrasion wear them down fast. The Polisport rear fender delivers the exact factory look and fitment without the fragility or premium OEM pricing. Built from durable gloss...
    14031865
    SKU:
    14031865
    Availability:
    Ships Same Business Day
    Weight:
    0.60 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 - '12/'14-'23 OEM Green - KX 65/KLX 110 8561500013

    POLISPORT Fender - Rear - '12/'14-'23 OEM Green - KX 65/KLX 110 8561500013

    POLISPORT

    $27.99
    Stock OEM plastics crack, fade, and deteriorate under UV exposure and track conditions—leaving your KX 65 or KLX 110 looking worn before its time. The POLISPORT rear fender delivers an exact OEM replica in durable gloss polypropylene, restoring your...
    14031866
    SKU:
    14031866
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    $27.99
    Qty in Cart: 0
    Quantity:
    Price:
    $27.99
    Subtotal:
  •  POLISPORT Fender - Rear - Green - KXF 250/450 8578800001

    POLISPORT Fender - Rear - Green - KXF 250/450 8578800001

    POLISPORT

    $31.99
    Your stock fender takes the brunt of track debris, trail impacts, and UV exposure—and OEM replacements carry premium price tags. The POLISPORT rear fender delivers genuine OEM durability using advanced DGP (durable gloss polypropylene) technology,...
    14031872
    SKU:
    14031872
    Availability:
    Ships Same Business Day
    Weight:
    1.42 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - Green - KXF 250/450 8579100001  POLISPORT Fender - Rear - Green - KXF 250/450 8579100001

    POLISPORT Fender - Rear - Green - KXF 250/450 8579100001

    POLISPORT

    $31.99
    Stock fenders take a beating on the track and trail, and OEM replacements can drain your budget fast. The POLISPORT Rear Fender delivers the durability and precise fitment of genuine parts at a fraction of the cost, thanks to Polisport's proprietary DGP...
    14031873
    SKU:
    14031873
    Availability:
    Ships Same Business Day
    Weight:
    1.28 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - White - KXF 250/450 8579100002

    POLISPORT Fender - Rear - White - KXF 250/450 8579100002

    POLISPORT

    $31.99
    Your KXF 250/450's rear fender takes constant abuse from roost, impacts, and UV exposure—OEM replacements are expensive and fade quickly. The Polisport rear fender delivers factory-exact fitment with superior durability and color retention at a fraction...
    14031874
    SKU:
    14031874
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - Black - KXF 250/450 8579100003

    POLISPORT Fender - Rear - Black - KXF 250/450 8579100003

    POLISPORT

    $31.99
    Stock fenders take a beating on the track and trail—mud, rocks, and impacts degrade standard plastic quickly, leaving you with faded, cracked replacements. The POLISPORT rear fender combines OEM-accurate fitment with DGP technology, delivering a tougher,...
    14031875
    SKU:
    14031875
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - White - KX 85/100 8579700002

    POLISPORT Fender - Rear - White - KX 85/100 8579700002

    POLISPORT

    $27.99
    A damaged or faded rear fender compromises both the appearance and aerodynamic efficiency of your KX 85/100. This OEM-replica fender delivers the exact fitment and durability of original equipment at a fraction of the cost, while the gloss polypropylene...
    14031876
    SKU:
    14031876
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    $27.99
    Qty in Cart: 0
    Quantity:
    Price:
    $27.99
    Subtotal:
  •  POLISPORT Fender - Rear - Black - RMZ 450 8552500002

    POLISPORT Fender - Rear - Black - RMZ 450 8552500002

    POLISPORT

    $31.99
    The rear fender is one of the first components to take abuse on the track or trail—impacts, abrasion, and UV exposure will degrade stock plastic over time. This POLISPORT rear fender engineered with DGP technology delivers OEM-exact fitment and...
    14031882
    SKU:
    14031882
    Availability:
    Ships Same Business Day
    Weight:
    1.34 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - Black - RMZ 250 8552900002

    POLISPORT Fender - Rear - Black - RMZ 250 8552900002

    POLISPORT

    $31.99
    OEM replacement fenders take a beating on the track and trail—mud, rocks, and impacts inevitably leave their mark. The Polisport rear fender delivers stock-identical fitment and appearance while outperforming factory plastic in durability and impact...
    14031883
    SKU:
    14031883
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - Yellow - RMZ 250 8552900003

    POLISPORT Fender - Rear - Yellow - RMZ 250 8552900003

    POLISPORT

    $31.99
    OEM rear fenders take a beating on the track and trail, cracking under impact or fading in the sun. The POLISPORT Rear Fender for RMZ 250 delivers OEM-exact fitment and appearance without the fragility of stock plastic—or the premium price tag of genuine...
    14031884
    SKU:
    14031884
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Front - White - CRF 250R/450R 8573900002

    POLISPORT Fender - Front - White - CRF 250R/450R 8573900002

    POLISPORT

    $30.99
    Whether you're replacing a damaged fender or refreshing your CRF 250R/450R's appearance, this POLISPORT front fender delivers OEM-spec fitment without the OEM price tag. The injection-molded construction resists impact and UV fading while maintaining a...
    14032185
    SKU:
    14032185
    Availability:
    Ships Same Business Day
    Weight:
    1.70 LBS
    $30.99
    Qty in Cart: 0
    Quantity:
    Price:
    $30.99
    Subtotal:
  •  POLISPORT Fender - Front - Black - CRF 250R/250R 8573900003

    POLISPORT Fender - Front - Black - CRF 250R/250R 8573900003

    POLISPORT

    $30.99
    The OEM front fender takes a beating on the track and trail—rocks, impacts, and UV exposure degrade stock plastic faster than you'd expect. This POLISPORT replacement delivers genuine OEM fitment with superior durability, resisting impact and abrasion...
    14032186
    SKU:
    14032186
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    $30.99
    Qty in Cart: 0
    Quantity:
    Price:
    $30.99
    Subtotal:
  • On Sale
     POLISPORT Fender - Rear - Red - CR 125R/250R 8560600003

    POLISPORT Fender - Rear - Red - CR 125R/250R 8560600003

    POLISPORT

    MSRP: $30.99
    Now: $20.00
    Was: $30.99
    A cracked or deteriorating rear fender compromises both protection and appearance—mud and debris spray onto your bike and gear, while damage accelerates wear on surrounding components. The POLISPORT rear fender restores OEM-specification protection at a...
    14032188
    SKU:
    14032188
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    MSRP: $30.99
    Now: $20.00
    Was: $30.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $30.99
    Now: $20.00
    Was: $30.99
    Subtotal:
  •  POLISPORT Fender - Rear - Red - CRF 250R/450R 8578700001

    POLISPORT Fender - Rear - Red - CRF 250R/450R 8578700001

    POLISPORT

    $31.99
    Stock rear fenders crack under trail abuse and cost a fortune to replace through Honda—this POLISPORT alternative delivers OEM-specification durability at a fraction of the price. Built from flexible, impact-resistant polymer, it withstands the...
    14032190
    SKU:
    14032190
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - Black - CRF 250R/450R 8578700003

    POLISPORT Fender - Rear - Black - CRF 250R/450R 8578700003

    POLISPORT

    $31.99
    If you're pushing your CRF 250R or 450R hard on the trail, a cracked or worn rear fender isn't just an aesthetic issue—it compromises airflow, collects debris, and leaves your frame exposed to impact damage. The POLISPORT rear fender delivers OEM-level...
    14032191
    SKU:
    14032191
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  •  POLISPORT Fender - Rear - Red - CRF 250R/450R 8579500001

    POLISPORT Fender - Rear - Red - CRF 250R/450R 8579500001

    POLISPORT

    $31.99
    OEM plastic fenders degrade fast under off-road conditions—cracking, fading, and becoming expensive to replace. The POLISPORT rear fender delivers superior durability and impact resistance at a fraction of OEM cost, while maintaining an exact factory...
    14032192
    SKU:
    14032192
    Availability:
    Ships Same Business Day
    Weight:
    1.02 LBS
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • Total: items /

Adding your products to cart

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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