450cc Motocross Bikes For Sale On eBay

Browse current 450cc motocross bikes for sale, including powerful four-stroke MX bikes from Honda, Yamaha, Kawasaki, KTM and Suzuki. Popular related model pages include Honda CRF450 motocross bikes, Yamaha YZF450 motocross bikes, Kawasaki KX450F motocross bikes, KTM SX-F four-stroke motocross bikes and Suzuki RM-Z450 motocross bikes. These bikes suit experienced riders, so check hours, maintenance history, engine condition and advert details before buying.

Disclosure: Our goal is to feature items and services that we think you’ll find interesting and useful related to Motocross Bikes & Dirtbike Racing. For certain products and links from this site, we may get a small share of the revenue from the sale from our commerce partners. The actual product won't cost you any more, revenue is generated through advertising of the products and services on this site. When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
217 matching listings

Explore by type

Use these quick filters to narrow the listings below.

Best MX Bike 450cc Finds

Browse 450cc motocross bikes chosen for riders looking for full-size four-stroke power, strong specification and clear listing detail.

UK seller Business seller
KAWASAKI BRUTE FORCE 450 T CAT BRAND NEW 2026 MAIN DEALERS

KAWASAKI BRUTE FORCE 450 T CAT BRAND NEW 2026 MAIN DEALERS

£6,393.60
Condition
New
Buying
CLASSIFIED AD
Seller
BUSINESS
south-coast-powersports-ltd - SP4***, GB
High value 450cc
View on eBay
Best Offer UK seller
Kawasaki KX 450 2026 Motocross Bike

Kawasaki KX 450 2026 Motocross Bike

£6,295.00
Condition
Used
Buying
Best Offer
Seller
BUSINESS
sevenseven2mx - WS4***, GB
High value
View on eBay
UK seller Business seller
KAWASAKI KXF 450 2023 Motocross Bike 450cc @EmotoUK - Finance Available

KAWASAKI KXF 450 2023 Motocross Bike 450cc @EmotoUK - Finance Available

£3,995.00
Condition
Used
Buying
CLASSIFIED AD
Seller
BUSINESS
emotoukltd - MK19***, GB
450cc 50cc
View on eBay
UK seller Business seller
Yamaha YZF 450 2022 low hours ( MX / MOTOCROSS / ENDURO ) @ AJ TRADING

Yamaha YZF 450 2022 low hours ( MX / MOTOCROSS / ENDURO ) @ AJ TRADING

£3,995.00
Condition
Used
Buying
CLASSIFIED AD
Seller
BUSINESS
ajtrading1989 - B6***, GB
450cc 50cc
View on eBay

More matching listings

217 listings
KAWASAKI BRUTE FORCE 450 T CAT BRAND NEW 2026 MAIN DEALERS

KAWASAKI BRUTE FORCE 450 T CAT BRAND NEW 2026 MAIN DEALERS

£6,393.60
High value
View on eBay
KAWASAKI KXF 450 2023 Motocross Bike 450cc @EmotoUK - Finance Available

KAWASAKI KXF 450 2023 Motocross Bike 450cc @EmotoUK - Finance Available

£3,995.00
450cc
View on eBay
Yamaha YZF 450 2022 low hours ( MX / MOTOCROSS / ENDURO ) @ AJ TRADING

Yamaha YZF 450 2022 low hours ( MX / MOTOCROSS / ENDURO ) @ AJ TRADING

£3,995.00
450cc
View on eBay
HONDA CRF 450 2025 MOTOCROSS BIKE LOW HOURS

HONDA CRF 450 2025 MOTOCROSS BIKE LOW HOURS

£4,995.00
450cc
View on eBay
2025 USED SUZUKI RMZ 450 MOTOCROSS BIKE (LOW HOURS) BIG SAVING CRF RMZ YZF SXF

2025 USED SUZUKI RMZ 450 MOTOCROSS BIKE (LOW HOURS) BIG SAVING CRF RMZ YZF SXF

£3,999.00
450cc
View on eBay
HONDA CRF 450 RX 2017 Motocross Bike 450cc 56 Hrs @EmotoUK - Finance Available

HONDA CRF 450 RX 2017 Motocross Bike 450cc 56 Hrs @EmotoUK - Finance Available

£3,995.00
450cc
View on eBay
Yamaha YZF 450 2025 - 29 hours - Xtrig clamps - NOW SOLD

Yamaha YZF 450 2025 - 29 hours - Xtrig clamps - NOW SOLD

£5,299.99
High value
View on eBay
Yamaha YZ450F 2008 490cc Athena Big Bore Motocross MX Dirt Bike YZF450

Yamaha YZ450F 2008 490cc Athena Big Bore Motocross MX Dirt Bike YZF450

£2,000.00
Budget pick
View on eBay
Kx450x 2025 Motorcycle / Supermoto Bike (ROAD LEGAL)

Kx450x 2025 Motorcycle / Supermoto Bike (ROAD LEGAL)

£5,600.00
High value
View on eBay
2018 HONDA CRF 450 CRF450R ROCZEN EDITION SUPERMOTO ROAD LEGAL 1 OWNER £££ SPENT

2018 HONDA CRF 450 CRF450R ROCZEN EDITION SUPERMOTO ROAD LEGAL 1 OWNER £££ SPENT

£5,999.00
High value
View on eBay
Honda CRF 450 RX 2025 Enduro bike - Honda Main Dealer - Reserve Now!

Honda CRF 450 RX 2025 Enduro bike - Honda Main Dealer - Reserve Now!

£8,799.00
High value
View on eBay
Kawasaki KX450 2024 Model - Kawasaki Main Dealer - HUGE DISCOUNT!

Kawasaki KX450 2024 Model - Kawasaki Main Dealer - HUGE DISCOUNT!

£6,295.00
High value
View on eBay
Honda CRF 450 RWE 2025 - Honda Main Dealer - OUT OF STOCK

Honda CRF 450 RWE 2025 - Honda Main Dealer - OUT OF STOCK

£10,559.00
High value
View on eBay
Honda CRF 450R 2025 Model - Honda Main Dealer -RESERVE FOR APRIL

Honda CRF 450R 2025 Model - Honda Main Dealer -RESERVE FOR APRIL

£7,999.00
High value
View on eBay
KX 450 2026 - Kawasaki Main Dealer - Reserve NOW!

KX 450 2026 - Kawasaki Main Dealer - Reserve NOW!

£8,399.00
High value
View on eBay
2025 KAWASAKI KX 250 KXF - UNUSED ZERO HOUR - CRF SXF 350 450 125

2025 KAWASAKI KX 250 KXF - UNUSED ZERO HOUR - CRF SXF 350 450 125

£5,699.00
High value
View on eBay

Listings open on eBay. Check seller, delivery and returns on the eBay listing.

Disclosure: Our goal is to feature items and services that we think you’ll find interesting and useful related to Motocross Bikes & Dirtbike Racing. For certain products and links from this site, we may get a small share of the revenue from the sale from our commerce partners. The actual product won't cost you any more, revenue is generated through advertising of the products and services on this site. When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.