if(typeof __ez_fad_position!=’undefined’){__ez_fad_position(‘div-gpt-ad-totalmocycle_com-box-3-0′)}; introduce the 2021 Suzuki RM-Z250 guide……
2021 RM-Z250 is the choice of wise professionals and privateers everywhere, ready to fight. The agile RM-Z250 combines RM-Z450′s stylish and race-friendly appearance with a versatile engine and a responsive chassis to provide outstanding performance. Using Suzuki’s “Run, Turn and Stop” concept, factory engineers made the RM-Z250 a strong competitor.
The RM-Z250 has always been set as the 250 standard for the best handling on the track. The RM-Z250 engine is supplied by a dual-injector EFI system, a central port cylinder head and an AMA-compliant exhaust device, which can provide strong and usable power throughout the entire speed range.
The double-beam aluminum frame and hydro-formed rear rocker arm have suspension provided by KYB, including coil spring forks and shock absorbers with four-way damping force adjustment. The powerful brakes and ergonomic body shape help keep the rider in control when the RM-Z250 is reclaiming the track.
if(typeof __ez_fad_position!=’undefined’){__ez_fad_position(‘div-gpt-ad-totalmocycle_com-banner-1-0′)}; Since Suzuki is based on the MX of mobile devices, it is easy to adjust fuel injection and ignition to get the most Best performance-Tuner 2.0 and proven fuel coupler system, included in every 2021 RM-Z250. Suzuki’s Winning Balance was exhibited together with the 2021 RM-Z250 because it maintained its high standard of turning performance.
The 250 level of motocross will not forgive the slightest weakness. This is why we designed the RM-Z250 to achieve the correct balance of “running, turning and stopping” to win in this super competitive arena. The intensive work of our engineers has once again made the RM-Z250 a leader. Its engine has fully enhanced power and first-class electronic equipment, a lighter frame and rear swing arm, and an updated suspension for better handling. The completely new styling design, as well as a series of other updates, make it the most powerful off-road motorcycle in its class. Beware…RM-Z250 is here!
As one of the most successful brands in the history of the sport, Suzuki’s cross-country motorcycles are still the champion’s choice, because of its stylish, avant-garde appearance, powerful and reliable engine and natural ergonomics continue to demonstrate Suzuki’s racing identity.
if(typeof __ez_fad_position!=’undefined’){__ez_fad_position(‘div-gpt-ad-totalmocycle_com-box-4-0′)}; The brothers and sisters of RM-Z250 and RM-Z450 embody the power of Suzuki’s concept of “winning balance” Brakes are used to control braking force, a wide range of engine torques with high peak power, and a sturdy, lightweight and flexible chassis that remains the first-class standard for cornering performance and extremely precise handling. Coupled with leading ergonomic design, beautiful shape and unparalleled reliability, you have the perfect match preparation machine.
Thanks to Suzuki’s mobile device-based MX-Tuner 2.0 and proven fuel coupler, RM-Z250 and RM-Z450 will launch updated graphics in 2021, and can now adjust electronic fuel injection and ignition systems to achieve optimal performance in 2021 System included with RM-Z250 and RM-Z450. Now you can easily adjust the motorcycle to suit the track conditions or your riding preferences through a convenient personal device.
The RM85 will return in 2021 with updated graphics and continue to inherit the strong tradition of excellent racing. Just like its larger RM-Z cousin, the RM85 provides experienced junior racers and rookies with Suzuki’s famous handling . With a reliable two-stroke engine, smooth power output and light handling, the RM85 is the perfect off-road motorcycle for anyone who learns to race and strives to win.
Excellent engine performance-Central port cylinder head increases output and throttle response-Dual injector system improves high-speed power-Traction management system helps bicycles connect-Suzuki Holeshot Assist Control (S-HAC) gives you a step ahead
if(typeof __ez_fad_position!=’undefined’){__ez_fad_position(‘div-gpt-ad-totalmocycle_com-large-leaderboard-2-0′)}; Excellent turning performance-frame and rocker arms balance strength and lightness- —Engine placement and installation assist chassis flexible control — Coil spring KYB front fork provides excellent performance and easy adjustment — KYB rear shock and linkage provide excellent control — Competition-ready, high-grip Dunlop MX33 tires
Controlled braking performance-large diameter front brakes increase braking power and feel-compact rear master cylinder is designed to prevent dirt from accumulating on the rider’s boots
Functional styling-radical new styling from the champion RM-Z450-narrow cockpit allows the rider to move easily for optimal racing performance
Rider-friendly adjustments-Suzuki’s MX-Tuner 2.0 is provided, which provides quick fuel injection and ignition adjustments through an easy-to-use smartphone app. – Also includes a fuel coupler for quick and easy EFI adjustment
If you can’t transfer it to the ground, then all the power in the world will be of no avail. Suzuki’s innovative electronic devices work transparently with the rider to achieve maximum acceleration in any type of dirt or track conditions. The 2018 RM-Z450 debuted the third-generation traction management system for the first time, with a significantly updated S-HAC (Suzuki Holeshot Assist Control) and a more powerful ECM (Engine Control Module). Starting in 2019, Suzuki’s RM-Z250 goes one step further, and the fourth-generation system has updated ECU software.
The S-HAC of the RM-Z250 can monitor the throttle position and gear to adjust the ignition timing to obtain the maximum acceleration during the three key stages of the off-road motorcycle start: accurate launch time, over the starting point, and then start straight. Three settings are available, A-mode for harder surfaces where idling of the wheels is essential, B-mode for normal dirt conditions with good traction, and an “off” setting.
The RM-Z250 is already known as one of the best turning off-road motorcycles, but we continue to work hard to improve it. The frame and the rocker arm, the aluminum frame beam becomes a hollow square section, the internal ribs are eliminated, the weight is reduced by 370 grams, and the torsional stiffness is increased by 10% to obtain better stability and collision absorption capacity. The aluminum rocker arm uses a hydroforming process to achieve a tapered cross-section without any welding, making the components equally strong, with thinner walls and a weight reduction of 80 grams.
To increase the flexibility of the RM-Z250, the engine position is pivoted upwards at the rear engine bracket by 8.5 mm (measured at the center of the crankshaft). The upper engine mounting bracket is now aluminum instead of steel. The RM-Z250 has four brackets on both sides of the engine instead of four brackets that hang the engine in one position. This not only reduces 90 grams, but also increases the overall stiffness.
The seat rails (now hexagonal in cross-section for easier access to the air filter) have been brought closer to obtain a narrower center, while also being raised to ensure sufficient air tank capacity. In order to take full advantage of the frame, the shape and foam density of the seat have been changed to make it easier to move, while reducing 274 grams. The pedals were moved forward by 3.3 mm and upward by 5.2 mm, while the Renthal Fatbar tapered aluminum handlebars were repositioned forward by 7.4 mm and downward by 3.8 mm. The overall curvature of the Renthal handlebars is also straighter than before, allowing the rider to move the weight forward more easily. And the previous aluminum fuel tank has been changed to a resin-based unit, saving another 312 grams.
Level 250 is about maintaining motivation. This requires handling any and all track obstacles as quickly and efficiently as possible, which means keeping the chassis stable and providing the rider with good track feel and feedback-without making him succumb. Whether it’s jumping over a lot of howling noises, deflating on annoying ruts and potholes on straights, or landing from that big jump, Suzuki RM-Z250 can provide you with KYB coil spring forks and redesigns The rear shock absorber and connecting rod.
The KYB coil spring fork replaces the previous adjustment-intensive PSF2 air spring fork in last year’s model. It adopts a unique design and provides a progressive damping setting, providing excellent flexibility during small bumps, and at the same time, it is deeper and stable in the stroke to cope with more Large shocks, such as harsh shocks, jump landings. The upper and lower triple clamp design is optimized for rigidity, while cutting 60 grams. In the back, the rear suspension linkage ratio has been changed to enhance short-stroke movement, while optimizing longer suspension movements for better traction, and a weight reduction of 14.9 grams. The fully adjustable KYB shock absorber has a larger adjustment range, and the spring uses a thinner but stronger wire (feedback from MotoGP technology), which is 370 grams lighter than before. In addition, the chain guide is a design whose shape allows the chain to pass through it more evenly to improve durability, while also reducing 30 grams.
The lighter Dirtstar wheels reduce all important rotating masses by 40 grams at the front and 60 grams at the rear. Starting in 2019, the RM-Z250 is equipped with Dunlop’s latest Geomax MX33 tires, which have received rave reviews. The adaptive design is suitable for soft tracks and can perform well on medium, sandy and muddy tracks. The front is 80/100-21 51M, and the back Dunlop 100/90-19 57M is 300 grams lighter.
Finally, if you cannot maintain the balance of the “stop” part of the performance triangle, all this increased speed potential will be of no avail, so we have strengthened the front brake of the RM-Z250. The diameter of the brake disc has been increased from 250 mm to 270 mm, and the material of the brake pad has been changed to obtain a more linear response characteristic when you brake.
Extracting the maximum performance from the RM-Z250′s power plant requires studying every detail. Including 30% larger air filter inlet and straighter throttle body outlet for more airflow; redesigned cylinder head intake and exhaust ports to improve combustion efficiency and increase fuel pressure , To enhance fuel/air atomization; direct throttle linkage to get a better feeling.
But our engineers did not stop there. From 2019, the fuel injection system of the RM-Z250 is equipped with two injectors. The main injector does not use a single injector that may affect the low-end fuel supply to provide sufficient fuel for high-end power, but provides precise low-speed fuel, while the higher-speed auxiliary injector provides the required Extra fuel. In addition, although the main injector is now injected at the throttle body butterfly valve for better atomization, the position of the auxiliary injector near the air filter allows more time to atomize and cool the incoming intake air. More motivation.
The exhaust pipe has been lengthened by 99mm, and the inner diameter is gradually tapered from ø35mm of the cylinder head to ø45mm of the muffler. The end of the piston pin hole is tapered to reduce the stress on the piston top and improve the durability of the piston. And in order to optimize acceleration, the second gear was made higher, and the rear sprocket was expanded from 49-tooth unit to 50-tooth.
Consistent with the iconic design that started with RM-Z450 in 2018, RM-Z250 maintains Suzuki’s unique “Beak DNA” shape. In order to convey the brand’s speed tradition in our cross-country bikes, the front fender and radiator guard are arranged in a straight line, and the sharp avant-garde angle expresses the feeling of dynamic speed. Like the RM-Z450, the RM-Z250 is decorated with the yellow and blue colors of the Team Suzuki off-road vehicle, making the RM-Z lineup easy to identify. The practical shape allows the rider to easily transfer the weight forward or backward, and the cover is reduced by 150.4 grams.
Engine Features Equipped with center port cylinder head, fuel injection, 249cc, liquid cooling, four-stroke, four-valve, DOHC engine is still proven and reliable.
The cylinder head has an exquisite intake port shape and finish, which can fine-tune the fuel/air charge into the combustion chamber to increase engine output.
The large air cleaner opening is combined with a more direct air cleaner outlet pipe path into the throttle body to achieve a large volume of air flow.
The fuel injection system has super smooth power transmission, high fuel efficiency, excellent reliability and easy adjustment ability.
First introduced on the RM-Z250, dual fuel injectors are used to provide excellent combustion chamber efficiency and increase high-speed power.
The main fuel injector is located at the bottom of the throttle body and injects fuel through the butterfly valve to achieve excellent fuel and air atomization. The secondary injector is located in the air cleaner intake pipe, so fuel and air have more time to mix and cool before entering the engine.
The RM-Z250 uses a large-capacity fuel pump to feed the new dual injector system and mix fuel and air charge to achieve excellent throttle response.
The special design of the throttle body eliminates complicated control linkage, allowing the rider to feel more direct connection with the engine.
The intake camshaft profile has a larger valve lift than the previous generation RM-Z250, which increases the power at all engine speeds.
The compact aluminum cylinder is coated with Suzuki Composite Electrochemical Material (SCEM), which is durable, light in weight and high in heat transfer efficiency.
The processing technology of the piston pin hole is changed to reduce the stress on the piston top and improve reliability.
Because the proven starter and automatic pressure reduction system work accurately and efficiently (eliminating the need for bulky and expensive electric starting systems), engine starting is still simple.
The high-flow exhaust system has a longer head pipe, a tapered middle section and a multi-layer silencer, which has a good flow rate in the entire speed range and emphasizes low-speed performance.
The exhaust muffler uses a four-layer design to improve performance and maintain compliance with AMA sound regulations.
The resin engine protector helps protect the coolant pump (right side) and the stator cover (left side) from debris and stones.
Advanced electronics 2021 RM-Z250 comes with Suzuki’s MX-Tuner 2.0, which can easily adjust fuel injection and ignition system settings to achieve optional racing performance. – Using a smartphone app connected wirelessly to the MX-Tuner compact transceiver, fuel can quickly change delivery and ignition timing. – The MX-Tuner app can pre-program personalized settings into the ECM, which can be activated by inserting one of the fuel couplers provided. -Racers and tuners can easily change settings to match performance-related updates. – The application can save settings for many different tracks or weather conditions, and can also exchange settings with other racers. – Access to real-time engine data and running time information to help you master the maintenance of the bicycle.
It also includes Suzuki’s tried-and-tested, easy-to-use fuel coupler to simplify EFI adjustments. – In order to quickly adjust the fuel to suit the riding conditions, two couplers are provided. One is for fuels that are more abundant than stocks, and the other is for fuel settings that are leaner than stocks. Riders only need to connect any coupler to the wiring harness to change the fuel setting in a few seconds.
RM-Z250 has an improved and faster traction management system that can react quickly to changes in engine speed. The Electronic Control Module (ECM) continuously measures the throttle opening, engine speed and gear position, and then adjusts the ignition timing and injector duration to fine-tune the engine output to provide the best traction for riding conditions. – The RM-Z250’s traction management system is different from the street car traction control system because it does not measure rear tire rotation. Since the needs of off-road motorcycles are different from street bikes, the system provides continuous adjustments to always maximize traction.
Suzuki Holeshot Assist Control (S-HAC) is an optional starting system derived from factory racing cars that helps the rider take off from the starting gate to take the lead as early as possible. – In order to help the rider at the start, there are three stages of power adjustment of the S-HAC system: 1) the initial launch time, 2) when the starting gate is crossed, and 3) acceleration to full speed.
There are three S-HAC modes, and the rider can choose the best option according to his skill level and starting conditions.
Mode A: Suitable for hard surfaces or slippery conditions at the starting point. In this mode, S-HAC will change the ignition timing during takeoff and skimming through the gate to reduce wheel slip and achieve a smooth takeoff. It also advances the ignition timing during this sequence to obtain stronger acceleration. After six seconds or when you reach fourth gear, the system shuts down and returns to normal ignition timing. – Benefits of Mode A: For novice riders and/or hard and slippery towing conditions, use Mode A for a more controlled launch.
Mode B: When the conditions at the starting point have better traction and a more aggressive launch is required. S-HAC will advance the ignition timing to increase throttle response and stronger offline acceleration. The sequence of ignition timing alternation is similar to mode A, but the total timing is increased. One of three conditions will return the ignition to normal operation (whichever occurs first): After six seconds or when you reach fourth gear, the system shuts down and normal ignition timing is restored. – Benefits of Mode B: For skilled riders and/or good starting conditions, use Mode B for a more aggressive start.
Post time: Nov-11-2021
