2021 KX450. 2021 KX450. We didn’t have any major issues with the clutch in previous years, so the 2021 version using a cupped disc spring instead of coil springs was a bit of a surprise. Discussions. The 2021 model took another win this year because, simply put, it does everything very well. Some years a bike stands heads and shoulders above the rest. Ground Clearance 13.2 in. Pictures. The exhaust note is pretty loud. preload, comp., rebound/12.0” Kawasaki has done a good job setting this bike up for the masses by giving it adjustability, rideability and durability all without being the standout leader in any one category. 2021 Kawasaki KX450 Specs. The 2021 KX450 receives the same single coned disc spring clutch and Renthal Fatbar as the KX250. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Kawasaki is trying to achieve a lighter clutch pull and a wider clutch-engagement range to help improve control. The upper triple clamp with two set of handle mounts offer riders a choice of four handlebar positions, from: 25 mm forward, 15 mm forward, STD and 10 mm back. The list of new features for 2021 is short, but that is not necessarily a bad thing. Weight Feeling (Chassis): The 21 KX450 is very free feeling yet connected, which makes this bike have a very light/nimble feeling through corners. It still has a more stable, well-planted feel than virtually any other 450. Curb Weight= 246.0 lb. • Strong brakes It has won the Dirt Bike magazine 450cc motocross shootout since its introduction, and the few changes made for 2021 don’t hurt the KX450 chances for another shootout victory. Single disc, 270 mm, 2-piston caliper – KX450-H+ Rear brake Single disc, 240 mm, 1-piston caliper Fuel capacity 6,2 l / 1,6 US gal Trail 120 mm / 4,7 in Fuel economy / consumption ENGINE Type Water-cooled 4-stroke Cylinder arrangement Single cylinder Bore & Stroke 96,0 x 62,1 mm Displacement 449 cm³ (27,4 cu-in) Compression ratio 12.5:1 While the addition of electric start and the return to a coil-spring fork add weight, efforts were made to keep the weight gain to a minimum. We did have some issues with our 2020 model sub-frame—the rear muffler mount breaks along the weld. 2021 KX250X. Official info for the 2020 KX450 KX450 - Get the latest specs, offers, & photos. • Easy to use power That’s what we loved about the 2019/2020 version and why it won our last two 450 shootouts. New for the 2021 KX450 is a factory-style aluminum Renthal Fatbar handlebar that helps to reduce vibration and shocks transmitted to the rider through the thicker 1-1/8” handlebar. With its stock 5.0 Nm fork and 54 Nm shock spring rates, the recommended weight range for the 2021 Kawasaki KX450 is 160 to 180 pounds. (7) Weight. We'll assume you're ok with this, but you can opt-out if you wish. The swingarm is constructed of a cast front section and twin-tapered hydro-formed spars with pivot points that focus on the center of gravity for balanced handling. Electric Start. NEGATIVES A Shootout win is hard to come by. An 18” rear wheel (KX450 F: 19”) offers a wide selection of tyres to choose from. What Is It Like To Ride A 2021 Kawasaki KX450? The result is the KX450's leanest chassis to date, and a highly-competitive, low overall weight of only 110.0 kg - a gain of only 1.3 kg. Spark arrestor: No This website uses cookies to improve your experience while you navigate through the website. supernaked z400. • Difficult preload- adjustment access, OFF-ROAD RACING 2020, WHO’S ON TOP: THE WRAP–UPDATED, BILLY BOLT WINS EXTREME LARGARES HARD ENDURO, ELI TOMAC LEAVING MONSTER ENERGY KAWASAKI, HONDA’S GREATEST BIKE: THE CR250R TWO-STROKE. 2021 KX65. This website uses cookies to improve your experience. Fork: Showa 49mm, adj. New for the 2021 KX450 is a factory-style aluminum Renthal Fatbar handlebar that helps to reduce vibration and shocks transmitted to the rider through the thicker 1-1/8” handlebar. While the addition of electric start and the return to a coil-spring fork add weight, efforts were made to keep the weight gain to a minimum. Weight, no fuel\: 235 lb. Graphics are still molded into the plastics, but have been ever so slightly updated for 2021, but no major styling changes were made using the same plastics that were introduced back in 2019. Increased Front/Rear Traction Matching the KX450's increased power, increased front and rear traction ensure the bike can put power to … This system uses large-diameter clutch plates, and different friction-plate material is designed to provide a consistent feeling while reducing fade during heavy use. That’s what we loved about the 2019/2020 version and why it won our last two 450 shootouts. But, you don’t walk away thinking about it in those terms. This year, it was the bike that was able to do everything well that took home victory. With its stock 5.0 Nm fork and 54 Nm shock spring rates, the recommended weight range for the 2021 Kawasaki KX450 is 160 to 180 pounds. WHAT’S NEW? I am able to lay it down with ease and cut down under a blown out rut almost as easy as a KTM/Husqvarna. Click here to sell a used 2021 Kawasaki KX450 XC or advertise any other MC for sale. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. retro sport z900rs abs. The 2021 Kawasaki KX450 sees few changes, but they’re all good ones. • Improved hydraulic clutch Curb Weight: 232.7 lb without fuel / 242.9 lb** Fuel Capacity: 1.64 gal: Wheelbase: 58.5 in: Color Choices: Lime Green: Warranty: Not Available: Kawasaki Protection Plus™ (optional) Not Available To maintain its edge in this fiercely competitive class, the 2021 KX450 benefits from a new engine mounted in its leanest chassis to date, enabling it to turn even quicker lap times, and make it the most powerful machine in the paddock. What is the best 450 motocross bike of 2021? All Rights Reserved. Specifications. Although we did experience the same issue with rubber-mounted units, it just took a little longer to happen. 2021 Kawasaki KX450. The 2021 Kawasaki KX450 is not really changed much. WEIGHT WITHOUT FUEL: 224 lb. Kawasaki 2021 KX450. Once again, Kawasaki uses Showa suspension components on the KX450 with 49mm coil-spring fork with A-kit technology and DLC-coated tubes up front while utilizing their Uni-Trak linkage system and a Showa shock also featuring A-kit technology just like the fork. 2021 KX250X ... A light piston (243 g) reduces the reciprocating weight and enhances the engine’s performance. Shock: Spring Rate: Standard (190 pounds or over, try one spring rate heavier) So, in my opinion, the 2021 model is a better bike for sure, not by much but it certainly has got better in the right areas. That being said, our 2020 test machine has seen a lot of action this year without having any major issue in that department. Weight Feeing (Chassis): the 2021 KX450 is a very free feeling yet smooth, which makes this bike have a very light/nimble feeling through corners. We have … The 2021 KX450’s mid range has a nice amount of meat and the smoother pulling power of the top end/over-rev is manageable on longer straights. • Weak sub-frame rear pipe mount Discussions. Engine Type DOHC, four-valve Displacement 449cc Bore & STROKE 96 x 62.1mm Cooling Liquid Compression ratio 12.5:1 FuelLing Keihin 43mm EFI Tank capacity 6.2L Transmission Five-speed, constant mesh Clutch Nissin hydraulic, wet multiplate. While the addition of electric start and the return to a coil-spring fork add weight, efforts were made to keep the weight gain to a minimum. Pictures. NEW Lightweight Aluminum Perimeter Frame(KP) • KX450 motocross racer-based frame contributes to the KX250XC’s light weight, light handling, and slim ergonomics. Seat height: 37.4” • Lightest Japanese 450 Specifications. Check out my thoughts on Kawasaki's 2021 KX450, after spending a day on the bike out at Cahuilla Creek MX. The result is the KX450's leanest chassis to date, and a highly-competitive, low overall weight of only 110.0 kg - a gain of only 1.3 kg. • Side-access airbox Dirt Bike Magazine - Best selling off road motorcycle magazine. The 2019 Kawasaki KX450 and all other motorcycles made 1894-2021. The last new item on board for 2021 is also inside the engine—this time in the transmission, and frankly not something that was on our radar as a bad thing. We sell new and pre-owned Motorcycles, Side By Sides, ATVs, and Scooters from Honda®, Kawasaki, and Polaris® with excellent financing and pricing options. Small Wheel 85cc. Since its redesign in 2019, the Kawasaki KX450 has received a warm reception from the public with increased unit sales and in the media with positive reviews. They addressed almost every issue we had with the machine in previous years, and it has won the last two Dirt Bike magazine 450cc motocross shootouts. The result is the KX450’s leanest chassis to date, and a highly-competitive, low overall weight of only 110.0 kg – a gain of only 1.3 kg. The 2021 version locks in harder, almost eliminating the vagueness of last year’s model. The wide footpeg design, offers excellent grip, superb feel, and making it easier to weight the pegs. With more Supercross and Motocross championships than any other ... (243 g) reduces the reciprocating weight and contributes to the engine’s performance. Country of origin: Japan Fuel delivery: 44mm Keihin EFI Junior Motocross. It was unchanged in 2020 and now it has three significant changes for 2021. Wheelbase: 58.5” But opting out of some of these cookies may affect your browsing experience. 2021 Kawasaki KX450 Review Photo Gallery This week we ride two genre-departing motorcycles from the established American manufacturers. Curb weight: 243 pounds; Color: Lime Green; 2021 Kawasaki KX450 Price: $9399 MSRP. 2021 Kawasaki KX450 XC Totalmotorcycle.com Features and Benefits 4-Stroke Engine • Light piston helps minimize reciprocating weight and contribute to engine performance. EPA legal: No Jess McKinley gives us his thoughts on the all new Harley-Davidson Pan America Special, and Ron Lieback gives his on Indian’s latest version of the FTR 1200 S.Â, 2021 Kawasaki KX450 Review (First Ride Fast Facts), 2021 Honda Monkey Buyer’s Guide: Specs, Prices, and Photos, 2021 Yamaha XT250 Buyer’s Guide: Specs, Price, and Photos, Brembo New G Sessanta Motorcycle Brake Caliper First Look, 2022 KTM Cross-Country Lineup First Look (Six Choices), 2021 Aprilia RS 125 and Tuono 125 First Look (A Dozen Fast Facts), The Fastest Bagger in America! Price: $9299 In fact, a new handlebar in the form of a switch to a Renthal Fat Bar might be the biggest change for most, at least visually. The coil-spring clutch has been replaced with what Kawasaki is calling a coned disk spring, which is similar in design to the version used by KTM that they call the DDS clutch. The Bike That Builds Champions. The new handlebar grip position is lower and closer to the rider, making it easier for the rider to weight … mini naked z125 pro The 2021 Kawasaki KX450 is not really changed much. You also have the option to opt-out of these cookies. Kawasaki has taken its 450 motocrosser and given it some off-road-specific features and suspension settings to create the new KX450X cross-country model. retro sport z900rs abs. rebound,  comp./12.0” Ground clearance: 13.4” 2021 KX65. This category only includes cookies that ensures basic functionalities and security features of the website. ... A well-balanced, slim aluminum perimeter frame helps keep the overall weight down and allows for light handling and slim ergonomics. What Is It Like To Ride A 2021 Kawasaki KX450? I am able to lay it down with ease and cut down under a blown out rut easier than a Yamaha YZ450F. The new thinner outer tube diameters offer refined rigidity and reduced weight, while the 215mm of travel and air spring are easily adjusted for rider preference, weight or track conditions. It is mandatory to procure user consent prior to running these cookies on your website. Complementing the championship proven technology, the 2021 KX450XC features aggressive styling along with in-mold graphics on the radiator shrouds that result in an ultra-smooth surface and a factory-racer look needed to finish at the top of its class. Although this is new to Kawasaki, we have seen this type of design concept from KTM/Husqvarna in the past. • Larger-diameter handlebars Shock: Showa, piggyback, adj. At times I am simply too busy on other projects, but for 2021 I am going to be personally doing some mods to the 2021 KX450 that I … Price. Ads are free. While it does have a big muffler, it’s still on the loud side and has a … 2021 KX450. In fact, a new handlebar in the form of a switch to a Renthal Fat Bar might be the biggest change for most, at least visually. Champion Builder. Rebound: 11 clicks out. Weight Without Fuel 235.8 lb. ... 2021 KX ™ 100 . KAWASAKI KX450 2021 Kawasaki KX450. THE VERDICT The new handlebar grip position is lower and closer to the rider, making it easier for the rider to weight … Kawasaki says the new bar reduces vibrations and moves the grips closer to the rider to make it easier to weight the front wheel. Completely revised in 2019 with a new engine mounted in its leanest chassis to date, the KX450 receives a number of updates in 2021 to maintain its edge in an extremely competitive class. The bike features a revamped clutch and a new coating on the piston. The Xes have different gearing than the motocross bikes. This happens with intermediate- and pro-level riders, especially when using an aftermarket exhaust that is not rubber-mounted like the stock unit. The new clutch pull is light, just like in previous years, and for most people this is great news, but some people find themselves over using the clutch, and that can prematurely wear the plates. We can’t say that we blame the Kawasaki engineers for being reluctant to make major changes. Displacement: 449cc The 2021 Kawasaki KX™450 motorcross bike is the leader of the KX™ legacy featuring championship-proven technology and a 449cc engine to help riders dominate on the track. There are also two different footpeg mounting positions—stock and 5mm lower—to suit different-sized riders. Seat Height 37.4 in. The 2021 Kawasaki KX450 gained a little weight, but its still in the ballpark with the CRF450, YZ450F and RM-Z450—however, KTM and … • Electric start Necessary cookies are absolutely essential for the website to function properly. • No on-the-fly map switch We have found this to … While the addition of electric start and the return to a coil-spring fork add weight, efforts were made to keep the weight gain to a minimum. ... 2021 KX450. Enter your postcode to get a ride away price. Like the KX450F, the KLX450R features petal brake discs front and rear. Increased Front/Rear Traction Matching the KX450's increased power, increased front and rear traction ensure the bike can put power to … Junior Motocross. We have documented a lot of evaluations to the 2020 Kawasaki KX450 right here on Keefer Inc., but I haven’t personally been a part of some of those tests. I have taken the KX450 off-road a few times and even raced it at a WORCS event in 2019. A close-ratio five speed transmission features lightweight gears and shafts to keep weight down, yet retain strength, while contributing to the motorcycle’s winning performance. Rating. Discussions. Ask about Kawasaki’s Team Green™ amateur rider support program. Kawasaki has been the lone standout manufacturer using 7/8-inch-diameter handlebars, and for the first time in history, the KX450 will come with Renthal Fatbars as standard equipment. Weight Feeing (Chassis): the 2021 KX450 is a very free feeling yet smooth, which makes this bike have a very light/nimble feeling through corners. These cookies will be stored in your browser only with your consent. Weight Feeling (Chassis): The 21 KX450 is very free feeling yet connected, which makes this bike have a very light/nimble feeling through corners.I am able to lay it down with ease and cut down under a blown out rut easier than a Yamaha YZ450F. On a 450cc motocross bike, the target weight range that manufacturers aim for is 175 to 185 pounds. On our scale, the 2021 model weighs 235 pounds without fuel. The … HOW MUCH? 2021 - KAWASAKI KX450F 2021. On our scale, the 2021 model weighs 235 pounds without fuel. While the ratios are off-road specific, they … When setting up a bike during pre-production testing, manufacturers have a target weight range for potential consumers, as it is impossible to produce a bike that will be perfect for everyone. Factory racer Eli Tomac has been very successful aboard the machine as well, winning multiple professional championships. H-D Turbo by ATP, Fueling: EFI w/ 44mm Keihin throttle body, Clutch: Hydraulically actuated w/ coned-disc spring, Front suspension; travel: Compression- and rebound-damping adjustable Showa 49mm inverted fork; 12.0 inches, Rear suspension; travel: Linkage-assisted fully adjustable Showa piggyback reservoir shock; 12.1 inches, Front brake: 270mm Braking semi-floating petal disc w/ dual-piston Nissin caliper, Rear brake: 250mm Braking petal disc w/ single-piston Nissin caliper. Fork Height: 3mm. The sleek bodywork has been molded to match the V-mounted radiators and narrow chassis design. It revs out cleanly without a sudden rev-limiter shutdown. • Engine is used as a stressed member, contributing to the frame’s rigidity balance. Fuel tank capacity: 1.6 gal. 2021 Kawasaki KX450 (Jeff Allen/) Overview. 2021 KX85. This version of the Kawasaki KX450 has a fairly short history. With a ride-height setting between 103–105mm, it still has a more stable, well-planted feel than virtually any other 450. If it’s working, why change it? In fact, it didn’t get any updates at all in 2020 and only a few in 2021. In addition to helping reduce unsprung weight, the wave shapes of the petal discs help clean the brake pads for more efficient braking performance. The Kawasaki KX450 motocross motorcycle is the leader of the KX legacy, powered by a 449cc engine with increased performance and next-level technology. 2021 KAWASAKI KX450 Specifications subject to change without notice. New for the 2021 KX450 is a factory-style aluminum Renthal Fatbar handlebar that helps to reduce vibration and shocks transmitted to the rider through the thicker 1-1/8” handlebar. Lighting coil: No 2021 KX85-II. For the first ride, Kawasaki invited us … Pictures. The 2021 Kawasaki KX450 and all other motorcycles made 1894-2021. This coating is supposed to reduce friction between the piston and cylinder wall for better durability and increasing overall engine performance. Spencer Owens. Since then, the KX450 has seen little changes. It was completely and totally new in 2019, getting a new frame and motor with electric start and a hydraulic clutch. ... A lightweight, compact Li-ion battery helps keep weight … Curb Weight: 226.4 lb without fuel / 236.5 lb** Fuel Capacity: 1.64 gal: Wheelbase: 58.5 in: Color Choices: Lime Green: Warranty: Not Available: Kawasaki Protection Plus™ (optional) Not Available Champion Builder. The chassis returns unchanged for 2021 using an aluminum perimeter frame that features forged, extruded and cast parts, while using the engine itself as a stressed member, adding to the frame’s rigidity balance. FIRST LOOK : 2022 KTM MX & CROSS COUNTRY MODELS, AN OLIVEIRA STORM HITS LAKE HAVASU VIKINGS GP: 2021 NGPC ROUND 5 PRO RESULTS, 1983 HONDA CR480R PROJECT BY PETE TREADWELL: TWO-STROKE TUESDAY, 2003 KAWASAKI KX144 RESTYLE PROJECT: TWO-STROKE TUESDAY, SLR HONDA DOMINATES HILLTOPPERS GP: 2021 NGPC ROUND 4, PMX RACING SUZUKI TWO-STROKE PROJECTS: TWO-STROKE TUESDAY, 2021 WISECO TWO-STROKE CHAMPIONSHIP: BIG CRASHES & LAST MINUTE SUBSTITUTIONS, COLE TOMPKINS HONDA CR250R REBUILD: TWO-STROKE TUESDAY, 2007 HONDA CR250 RESTYLE PROJECT: TWO-STROKE TUESDAY, LIGHTEST HONDA CR125 EVER BUILT: TWO-STROKE TUESDAY. 2021 KX85. The new handlebar grip position is lower and closer to the rider, making it easier for the rider to weight … For 2021, Kawasaki made a few changes that are more like refinements of the already-proven platform. supernaked z400. It isn’t the fastest bike in the class. But to finish off the list, a new coating on the piston and a new diaphragm spring on top of larger diameter clutch plates on the hydraulic clutch assembly completes the changes for 2021. On this page: we’ve curated specs, features, news, photos/videos, etc. Rear tire: Dunlop MX33S 120/80-19 Electric Start. Electric Start. Features Gallery Specifications Enquire. Braking components are still Nissin, with a 270mm petal-shaped Braking rotor up front and a 250mm (largest in the class) version from Braking in the rear. It’s actually one of the slowest, according to the dyno. 2021 KX450 Base Suspension Settings: Fork: Spring Rate 0.51 Spring (0.50 is stock) *If B level rider and over 200 pounds 0.52 springs are also a great option* Oil Level: Standard. Kawasaki KX450 : Model Year: 2021 Engine Size: 450cc Engine Type: Four-Stroke Engine Displacement: 449cc Bore x Stroke: 96.0 x 62.1mm Compression Ratio: Fuel System: Ignition: … That’s what we loved about the 2019/2020 version and why it won our … Bikez.biz has an efficient motorcycle classifieds. Engine Type DOHC, four-valve Displacement 449cc Bore & STROKE 96 x 62.1mm Cooling Liquid The Bike That Builds Champions. On our scale, the 2021 model weighs 235 pounds without fuel. Reviews, ratings, specifications, weight, price and more for the 2021 Kawasaki KX450 Price. Another change for 2021 is the addition of a dry-film lubrication coating on the piston skirt. You can list all 2021 Kawasaki KX450 XC available and also sign up for e-mail notification when such bikes are advertised in the future. Transmission: 5-speed We have found this to be a very balanced setup for the majority of test riders. I didn’t lose mid to top end pulling power with the black coupler (compared to the the white one), but I could ride the KX450 … 2021 KX250. The 2021 Kawasaki KX450 and all other motorcycles made 1894-2021. We test the Husqvarna FC 450, Kawasaki KX450, Honda CRF450R, KTM 450 SX-F, and Yamaha YZ450F to find out. Handling and power are still excellent. I am able to lay it down with ease and cut down under a blown out rut almost as easy as a KTM/Husqvarna. Specifications. Completely revised in 2019 with a new engine mounted in its leanest chassis to date, the KX450 receives a number of updates in 2021 to maintain its edge in an extremely competitive class. 2021 KX450F Coast Powersports Adelaide South Australia. For 2021 Kawasaki brings out an all-new KX250 that closely matches the changes the KX450 got in 2019. The added benefits of the 2021 KX450X would have been … It’s super smooth and easy to ride. With its stock 5.0 Nm fork and 54 Nm shock spring rates, the recommended weight range for the 2021 Kawasaki KX450 is 160 to 180 pounds. Adjustability, just like on the previous years, is a big part of the 2021 KX450, with adjustable handlebar mounting positions offering two mounting holes with 35mm of adjustability, and the 180-degree offset clamps giving the rider four different mounting points to choose from. Bikez has a high number of users looking for used bikes. The result is the KX450’s leanest chassis to date, and a highly-competitive, low overall weight of only 110.0 kg. 2021 KX450, LIGHT & FASTER 450CC MOTOCROSSER. It still handles predictably, it still has excellent suspension and it still has a sweet power delivery that anyone can appreciate. Jay Hatfield Motorsports of Wichita is a powersports dealership with locations in Kansas and Missouri. The result is the KX450’s leanest chassis to date, and a highly-competitive, low overall weight of only 110.0 kg … New for the 2021 KX450 is a factory-style aluminum Renthal Fatbar handlebar that helps to reduce vibration and shocks transmitted to the rider through the thicker 1-1/8” handlebar. Engine type: Electric-start, four-valve, DOHC, four-stroke Jeremy McGrath giving the 2021 KX450 a workout. Bore & stroke: 96.0mm x 62.1mm The Kawasaki was already the lightest of the Japanese 450s. These cookies do not store any personal information. so you can read up on the new 2021 Kawasaki KX450/KX450X in … ... **Curb weight includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied). Compression:11-13 clicks out. The 2021 Kawasaki KX250 is priced at $8,299. The Fatbar makes the front feel smoother, softer, more comfortable and looks much more modern. The 2021 Kawasaki KX450 starts at $9,399 USD / $10,599 CAD, with the KX450X version coming in $100 more expensive respectively, in both markets. But the changes that its Supercross championship-winning KX450 did get sound good to us and should make a difference on the track—for the better. It was our favorite 450 motocrosser in 2020 and it only got better. © 2021 - Dirt Bike Magazine. 2021 KX85-II. ... (19 mm) and closer to the rider (8 mm) – a position that makes it easier for the rider to weight the front wheel. The 2021 Kawasaki KX450 … The friction plates also have new offset segments to reduce overall drag. 2021 Kawasaki KX450. With a ride-height setting between 103–105mm, it still has a more stable, well-planted feel than virtually any other 450. 2021 KX450. Small Wheel 85cc. The Kawasaki KX450 received what we call a “ground-up rebuild” for the 2019 model year. We also use third-party cookies that help us analyze and understand how you use this website. FIRST PLACE: KAWASAKI KX450. Compare models, find your local dealer & get a quote. These are based on the latest 2021 KX450 and KX250 models (which includes a full redesign of the 250) and follow Kawasaki Team Green’s re-entry into the off-road racing game in 2019. mini naked z125 pro Shock Dimensions Nitrogen Pressure 175 psi Shock Length (Eye to Eye) 475 mm It isn’t the fastest bike in the class. In the end, we weren’t especially surprised that the Kawasaki KX450 emerged as the top pick. With competition as fierce as it is in the full-size motocross category, the three consecutive victories that Kawasaki has garnered with the KX450 in the Dirt Rider’s comparison is nothing short of impressive. ... (19 mm) and closer to the rider (8 mm) – a position that makes it easier for the rider to weight the front wheel. 2021 KX250. 2021 Kawasaki KX450 Specs. Importer: www.kawasaki.com, POSITIVES Adjustable Ergonomics. The Bike that Builds Champions. Front tire: Dunlop MX33S 80/100-21 We haven’t had this issue on the 2021 model yet, but without Kawasaki making any changes to this area, it seems to be only a matter of time. 2021 450 Motocross Shootout Summary.