You gotta pay to play on the subject of driving one of the best filth bikes on the market. From unique Italian bikes to top-performing and up-spec 450cc motocross and a strong electrical motorbike there’s a off-road shredder for anybody who’s keen to cough up the money.
This editorial is full with insights from our sister model Grime Rider’s in-depth opinions and feedback from Off-Highway Editor Andrew Oldar. After the analysis and deliberating was accomplished that is the checklist of the seven finest and most costly filth bikes we’ve put collectively.
Beta 480 RR Race Version: $11,299

The 480 RR Race Version not solely appears superior with the hanging crimson and blue bodywork/graphics, nevertheless it has a big-bore engine, nice suspension, and on-demand traction management tech. At $11,299, it’s the costliest off-road Race Version Beta affords.
Grime Rider’s Andrew Oldar commented, “Beta’s top-of-the-line four-stroke off-road mannequin is the 480 RR Race Version, which options high-quality suspension elements within the type of a KYB Air-Oil Separate (AOS) 48mm closed-cartridge coil-spring fork and KYB shock. This big-bore thumper is a perfect selection for Beta riders competing in high-speed off-road racing collection such because the AMA Nationwide Grand Prix Championship (NGPC) and AMA Hare & Hound Nationwide Championship.”
The engine is a 477cc liquid-cooled four-stroke that has, as Grime Rider stated in its protection on Joe Wasson’s Beta 480 RR Race Version, “good grunt, and with the six-speed gearbox it’s received loads of prime velocity for hare & hounds.”
“Our Race Version fashions are designed for the intense racer in addition to the informal rider who’s on the lookout for a extra aggressive bike. The rideability ethos of Beta Bikes is unquestionably evident within the 480 RR Race Version,” Beta’s Advertising and marketing Supervisor Bryan Wunsch stated. “Not solely does the bike characteristic a really clean four-stroke energy supply, nevertheless it additionally has a particularly mild really feel which permits for easy maneuverability. An thrilling addition to the 2023 Race Version is the introduction of the KYB rear shock to match the KYB entrance forks. The 480 RR Race Version has been the platform for a number of AMA championships received by our manufacturing facility race staff through the years which additional illustrates the capabilities of this machine.”
The KYB suspension Wunsch is referring to is adjustable for compression and rebound up entrance and spring preload, low/high-speed compression damping, and rebound damping out again.
A fast-release entrance axle lever helps ease the chore of entrance tire swaps (plus it provides a little bit pizazz to the entrance finish with its crimson anodized end).
Honda CRF450RWE: $12,399
If you need essentially the most tricked-out motocrosser from Honda, then the 2023 CRF450RWE is what you’re on the lookout for.
Per Honda’s press launch, the 2023 CRF450RWE “options an intensive checklist of premium upgrades impressed by the manufacturing facility Crew Honda HRC machines of Ken Roczen [Author’s note: who at the time the press release was published was riding for Honda] and Chase Sexton, together with a chrome steel Yoshimura exhaust, hand-polished cylinder ports, Hinson clutch basket and canopy, Throttle Jockey seat cowl and graphics, D.I.D DirtStar LT-X rims and DM2 gold chain, coated fork tubes, fork legs and 18mm shock shaft, grey metallic triple clamps, Renthal Kevlar grips and devoted ignition mapping.”
Along with all that, the RWE additionally has a potent powerplant with its 450cc liquid-cooled four-stroke engine. Our dyno recorded the ability figures of the 2021 CRF450RWE as 56.7 hp at 9,600 rpm and 34.8 lb.-ft. at 7,100 rpm, which is extra highly effective than the CRF450R from which it’s primarily based and the present crop of ordinary 450 motocross bikes for that matter.
To soak up any harshness, the Honda makes use of a 49mm absolutely adjustable Showa fork and absolutely adjustable shock. The fork tubes have a Kashima coating (to “improve the Works Version aesthetic”) and the fork legs have a titanium-nitride coating (to “decrease stiction and enhance journey high quality,” says Honda).
“The CRF450RWE is the closest you will get to a Method 1–degree machine,” DR check rider Allan Brown stated in his 2021 overview. “The usual 2021 CRF450R is sweet, nevertheless it wants just a few tweaks to raise it nearer to the highest of the category. The CRF450RWE actually runs higher than the CRF450R. The engine’s new ECU mapping makes the bike smoother and extra predictable via corners, the improved suspension is extra responsive and extra in sync with the chassis, and the mixture provides riders one thing to actually smile about. It cuts out and in of corners like a switchblade.”
Kawasaki KX450SR: $12,699
Seeing because it has received a variety of Grime Rider’s 450 Motocross comparisons, the KX450 is a prime performer from Kawasaki, however Crew Inexperienced takes its inventory flagship a step additional with the “Particular Racer” version, the KX450SR. Kawasaki says in its press launch that the KX450SR “options elite-level racing elements, particular tuning and design components impressed by the Monster Vitality Kawasaki race staff to additional elevate its efficiency and manufacturing facility racer appears.”
The 449cc liquid-cooled four-stroke engine of the SR is claimed to have elevated efficiency from the usual KX450 (the latter produces 51.9 hp at 9,400 rpm and 32.6 lb.-ft. at 6,600 rpm on our dyno) resulting from engine and ECU upgrades in addition to a Professional Circuit Ti-6 full titanium exhaust system. Benefiting from its extra highly effective, but manageable engine, the SR has the “quickest and best to journey powerplant I’ve ever had the pleasure of testing,” Grime Rider’s check rider Casey Casper stated. The brand new Showa suspension and aluminum chassis mixed with the Xtrig ROCS triple clamps are properly paired with the punchier energy too.
Associated: 2023 Kawasaki KX450SR First Look Preview
With the Ergo-Match elements, ergonomics of the SR may be adjusted to quite a lot of rider dimensions. The Renthal handlebar may be set to one among 12 positions and the footpeg top may be adjusted by 5mm with the 2 footpeg bracket positions accessible.
“The KX450SR is a motorbike that’s 98 p.c of the way in which to perfection. The place the inventory KX450 could also be thought of a 90 p.c package deal,” Casper concluded. “The KX450SR is efficacious for these wanting into one of the best that Kawasaki has to supply.”
KTM 450 SX-F Manufacturing facility Version: $12,099
Need the KTM 450 SX-F on steroids? Take a gander on the KTM 450 SX-F Manufacturing facility Version. Just like the Honda and Kawasaki, the factory-edition mannequin is the crème de la crème from the producer. It’s absolutely loaded with options that the bottom SX-F doesn’t have.
“The 2023 KTM 450 SX-F Manufacturing facility Version is a completely optimized and race-ready sculpture of the present KTM 450 SX-F that created a contemporary commonplace within the business for dealing with, energy, engineering, and competitiveness upon its presentation through the summer season of 2022,” KTM stated in its press launch.
“The 2023 KTM 450 SX-F Manufacturing facility Version is the prospect to get as shut as doable to Purple Bull KTM Manufacturing facility Racing tools, status, and race-winning potential,” KTM’s product advertising and marketing and group media supervisor Tom Moen added. “The most recent restricted version is forming the bottom of the manufacturing facility machines Cooper Webb and Aaron Plessinger will contest the 450SX season on. Others driving and racing this unimaginable machine won’t attain the velocity or fly as excessive as Webb or Plessinger, however they will look the half and luxuriate in the fitting efficiency specs to nudge them nearer to the dream.”
Grime Rider didn’t let this tricked-out machine move ‘em by. The gang examined and dyno’d this machine. A few of DR check rider Casey Casper’s total impressions spotlight the 450 SX-F Manufacturing facility Version’s phenomenal engine, top-notch tech, and wonderful appears, including, “That is one extraordinarily usable 450cc motocrosser.”
The engine has a displacement of 450cc with an oversquare bore and stroke (95mm x 63.4mm), and produces 54.4 hp at 9,400 rpm and 34.3 lb.-ft. of torque at 7,200 rpm on our dyno. An Akrapovič exhaust comes commonplace to belt out the four-stroke track. KTM claims that the engine weighs 59 kilos (that’s 26 p.c of the claimed 228-pound dry weight).
Orange manufacturing facility triple clamps maintain the 48mm WP Xact USD fork to the orange chromoly metal body, and a linkage-type WP Xact shock serves bump absorption duties on the again finish. Journey is 12.2 inches and 11.8 inches, respectively.
At $12,099, the Manufacturing facility Version is $1,200 greater than the bottom 450 SX-F ($10,899).
Stark Varg: $13,900
Electrical bikes and electrical bikes are more and more gaining traction within the motorbike market, so it ought to come as no shock {that a} bike just like the Stark Varg is making its approach onto lists like this. Stark Future founder and CEO Anton Wass stated, “We aimed to problem and encourage the motorbike business with the creation of the Stark Varg and by bringing our electrical expertise from the drafting board to actuality.”
So what are the professionals of the Stark Varg? First, there’s the sustainable, no emissions/no noise facet that’s coupled with energy that rockets the electrical filth bike across the observe. The 360V carbon fiber sleeve engine has a claimed 80 hp (!) and 938 Nm (an insane triple-digit determine of about 691 lb.-ft.) of torque on faucet. Energy supply may be tuned with the 100 journey modes accessible on the Android Stark sprint, so this bike can copy the ability of something from a 125cc two-stroke to 450cc motocross bikes or 650cc twin sports activities. In keeping with Stark, the bike has the battery capability to supply as much as six hours of path driving or a full moto at MXGP depth from one cost and recharging takes one to 2 hours (relying on charger and outlet).
The Stark Varg competes properly with the well-established inner combustion filth bikes as famous through the Sturdy however Silent: Stark Varg Electrical MX Bike Evaluate article.
There’s no hiding the truth that the Stark Varg is expensive. MSRP for the 80 hp model is $13,900, however there’s additionally a normal 60 hp model that is available in at $1,000 much less. Our Stark Varg Electrical Motocross Motorbike First Look Preview is a worthy useful resource for extra data.
TM EN 300 Fi 4T: $12,745
The TM EN 300 Fi 4T is a uncommon and unique enduro that’s the costliest filth bike from Italy-based TM Racing.
“Riders wanting to face out from the gang when it comes to bike producer and four-stroke engine displacement ought to look no additional than the TM MX 300 Fi ES 4T,” DR’s Oldar stated.
Its fuel-injected 299cc four-stroke engine is exclusive as a result of it slides in underneath the favored 350cc displacement. In keeping with findings from previous Grime Rider protection, this was as a result of the producer discovered that in its testing the smaller engine dimension labored finest. The mannequin’s engine obtained just a few updates in 2023, the primary being that the kickstarter has been eliminated which helped scale back weight by 2.2 kilos (it’s now a claimed 233.6 kilos with out gasoline). The engine mapping has additionally been up to date and exhaust noise has been toned down with a brand new quieter twin “Racing” exhaust.
The orientation of the airbox and gasoline tank can also be distinctive. It’s possible you’ll discover there’s a gasoline cap above the right-side quantity plate. That’s as a result of the gasoline tank and airbox have swapped positions in comparison with conventional four-stroke designs (and motorbike designs basically) which have the airbox underneath the seat and the tank between the knees.
The engine has “a whole lot of character, and it lets you realize it isn’t a Japanese or Austrian machine. The throttle response is superb, however it’s a slower-revving motor,” Grime Rider wrote in a 2017 check of the EN 300 Fi. “For a slower-revving bike, its top-end is superior and it simply retains pulling.”
In regard to chassis/dealing with, the EN makes use of a self-tempering aluminum deltabox-type single beam body with a KYB 48mm coil-spring fork and TM Racing shock. The 2017 overview said, “The bike is balanced and, maybe as a result of the rear gasoline tank retains that gasoline weight decrease, it might probably carve a good line via the timber and be steady at an honest clip.”
“The TM 300Fi EN four-stroke might be as shut as you will get to an actual manufacturing facility bike.
Developed by world champion Enduro riders and profitable the world championship a number of instances, the 300cc dominated that class for years,” TM stated. “Evaluate the retail value to the manufacturing facility editions of the competitors and you will note it’s cheaper!”
The MSRP is $12,745 for this Italian enduro.
Yamaha YZ450F Monster Vitality Yamaha Racing Version: $10,099
Yamaha’s YZ450F Monster Vitality Yamaha Racing Version, which solely differs from the usual mannequin in value and plastics/graphics, can also be an MVP within the filth bike realm. Actually, it was topped the 2023 victor of the Grime Rider 450 Motocross Bike Comparability Take a look at as a result of it “boasts essentially the most highly effective engine, top-notch suspension, a nimble chassis, 5-pound weight reduction, and principally agreeable ergonomics. Plus, its up to date Energy Tuner app continues to be the benchmark of filth bike EFI tunability.”
Extra on the engine: It’s a 450cc liquid-cooled four-stroke with a dual-overhead camshaft working 4 titanium valves. This mill sends a formidable 54.4 hp at 9,500 rpm and 32.7 lb.-ft. of torque at 7,200 rpm to its Dunlop Geomax MX33-shod rear wheel, which implies it’s essentially the most highly effective when in comparison with different 450 flagships that had been run on our dyno just like the GasGas MC 450F, Husqvarna FC 450, Kawasaki KX450, KTM 450 SX-F, and Honda CRF450R. In keeping with the DR check, the YZ has the strongest low-end energy in its class, making it the simplest to journey a gear excessive.
Extra on the chassis and suspension: The YZ450F has a brand new aluminum bilateral beam body that Yamaha says strikes a stability of cornering efficiency and dealing with stability. Grime Rider stated that the 2023 bike’s 5-pound weight discount (to the measured 242-pound moist weight) makes it “extra maneuverable than ever and corners with much less rider enter.” Excessive-spec and absolutely adjustable KYB Pace Delicate System 48mm coil spring fork and absolutely adjustable KYB shock are one of the best elements round as a result of “the tougher you journey, the higher it really works,” DR added.
The YZ’s up to date ergonomics additionally gained reward from our sister model’s check riders, who stated these are a lot improved in 2023. Yamaha says the present YZ has a brand new slimmer, flatter, extra compact physique, seamless, rounded options, and elevated legroom and revised handlebar place.
The Yamaha YZ450F Monster Vitality Yamaha Racing Version just isn’t the costliest on this grouping (and is priced decrease than others not listed), however it’s the costliest in Yamaha’s motocross lineup at $10,099. The usual YZ450F in Crew Yamaha Blue has a decrease MSRP of $9,899.