Motorcycle specifications HondaCRF 250 R 2025 A toi de bosser !

Honda has decided to show more of its fangs in MX2, one of the most hotly contested categories in the discipline. It's in these extreme conditions that the CRF250R has proven its fighting ability. It has evolved over time, step by step, to become a machine from which MX enthusiasts and pro riders alike can always get the best.

Technically unchanged since 2022, the CRF 250 R returns to the forefront for 2025 with, like its predecessor, a new chassis and an even more powerful engine.

The reds' 2-and-a-half cross - whose previous generations are already appreciated for their efficiency and liveliness - shares its chassis with the CRF 450 R 2025 and sees its handling further improved, with more stability in straights and corners, better shock absorption and more rear-wheel traction.

The double-beam aluminum frame has been 70% redesigned, with the aim of increasing the stability of the chassis over the most difficult terrain. The main cradle tube has been redesigned, while the main beams and side gussets have been reinforced. This is combined with new side plates (swingarm support) and a new upper shock mount to generate 8% more torsional rigidity, enhancing stability. The torsional/lateral stiffness ratio is 5% higher, improving cornering performance.

Torsional rigidity in the vertical axis also increases by 4%, eliminating distortion and instability at high speeds. The frame's rear loop is now attached to highly rigid side plates rather than to the main frame beams. This change reduces the transmission of energy (and resulting movement) from the rear of the bike to the steering column by 27%.

A great deal of work was carried out on the steering column, as well as on the upper and lower tees, in order to determine a more stable and constant behavior over the entire length of the suspension travel.

At the front, in addition to revised fork bushes with new wheel axle mounts, the CRF 250 R's construction has been made stiffer, resulting in 6% less variation in stiffness during suspension travel. At the rear, the 585.2 mm aluminum swingarm remains unchanged.

Caster angle and drag are set at 28.24° / 117 mm, while the wheelbase is 1,483 mm. Ground clearance is 330 mm and weight is 102 kg dry (107 kg fully loaded) with a 48.6/51.4% weight distribution (fully loaded).

another important part of the work focused on the suspension, with the aim of making fork operation even smoother and more progressive by eliminating any points of resistance and controlling internal friction along the entire length of the travel, for the benefit of handling consistency.

The ø 49 mm Showa upside-down fork is entirely new, with every element - from the forks to all internal components - redesigned to guarantee more uniform control over the entire length of travel (310 mm), right from the initial movement. Oil characteristics have also been redefined for improved low-speed behavior. 16 settings are available, for both rebound and compression. All have been revised for 2025.

At the rear, the monoshock has benefited from a similar redesign to make its behavior more homogeneous and reduce friction at the end of the stroke. There are 17 adjustment possibilities for rebound, 13 for compression at low speeds, and 3.5 for high speeds. These settings are also all new for 2025. Finally, the structure of the Pro-Link system has been made 11% stiffer, with optimized gear ratios and travel for smoother shock control. Travel has been set at 308 mm.

Still at the rear, the new CRF 250 R has also been redesigned to facilitate removal and replacement of the rear shock absorber, with only four components to be removed, halving the intervention time.

Designed from components used directly on HRC factory machines, the double-piston front brake caliper benefits from new construction, new pistons and new grooves for the seals. This new design limits lever clearance by almost 57% when the caliper warms up, while, under these conditions, stiffness variations are reduced by 25% on the caliper itself, limiting rider fatigue by offering a more linear lever travel. The ø260mm petal disc remains unchanged, while the ø240mm rear disc and single-piston caliper remain unchanged.

DID aluminum wheels (1.60 x 21 front and 2.15 x 19 rear) are black anodized. Both are fitted with Pirelli MX32 80/100-21 rubber at the front and 100/90-19 at the rear.

The minimalist bodywork facilitates the rider's movements on the machine. The side scoops and side covers have been redesigned for 2025 in keeping with the fundamentals of the CRF philosophy, i.e. limited weight, mass centralization and ergonomics with, in particular, a knee travel line kept as straight as possible between front and rear. New graphics reflect the change of vintage, as does the appearance of the Honda wing on the front mudguard. The titanium fuel tank holds 6.3 litres.

The Renthal Fatbar handlebars are fitted as standard, contributing to riding comfort thanks to their flexibility. The upper fork crown is designed to allow the 26 mm handlebar mounts to be moved forwards or backwards. When the mounts are rotated 180°, the handlebars have an additional 10 mm of latitude, bringing to 4 the number of positions available to the rider.

engine side

The CRF 250 R's 249.4 cm3 twin-shaft single-cylinder block has always been recognized as one of the easiest to operate on the market. The aim for 2025 was to lengthen the maximum power range, generate more mid-range torque - for the benefit of acceleration - and soften the throttle connection.

The redesigned crankshaft features increased rigidity at the crankpin and an improved moment of inertia, for greater responsiveness. The intake flow route - air intake, filter housing, intake pipe and throttle body - is also more direct than before, reducing resistance and improving throttle control.

In addition, the exhaust manifold has been redesigned and lengthened to deliver a smoother gas flow than on the previous model, improving acceleration from mid to high revs. The silencer - made of heat-treated aluminum to resist friction from the rider's boot - complies with the latest FIM noise standards (109 dB).

The intake camshaft drive pinion is press-fitted, which saves weight but also increases rigidity. Intake valves use double springs for improved control at very high engine speeds. In terms of lubrication, the oil circuit to the camshaft bearings has been optimized and the supports stiffened to reduce friction. Finally, precise timing of the rocker pin position contributes to high-speed performance, while the design of the piston and connecting rod optimizes efficiency.

Bore and stroke dimensions remain fixed at 79 x 50.9 mm, with a cylinder offset of 4.5 mm to reduce friction. The volumetric ratio is also unchanged at 13.9 to 1. The titanium valves are ø 33 mm on the intake side and ø 26 mm on the exhaust side

Durability is one of the fundamentals of the CRF250R. The design of the water pump drive pinion withstands the stresses imposed by engine oil temperature, while the pressure of the same oil in the cylinder head ensures optimum lubrication. The gearing common to the oil pump and primary drive is located on the left-hand side of the engine, while the filter and main oil inlet are on the right-hand side. This means the oil path around the engine is shorter and more direct, especially as the oil also lubricates the clutch and transmission, with a total capacity of 1.25 liters.

a strong electronic presence

The HSTC torque control system - also present on the CRF 450 R - works to minimize rear-wheel drive losses (synonymous with lost time) by optimizing traction. With no need for a speed sensor on the wheel, this system maintains full sensitivity to the throttle while managing power. Its effectiveness comes from precise intervention in ignition timing and fuel injection when abnormal variations in engine speed are detected.

The three available modes intervene on the steering according to conditions. In Mode 1, the system intervenes only very lightly and after a certain delay, which is ideal for limiting wheel spin and maintaining control in tight bends. Mode 3 is the one in which the system intervenes fastest and most strongly. This mode is particularly useful in muddy or slippery conditions. Finally, Mode 2 naturally offers an intermediary between Modes 1 and 3 in terms of speed and amplitude of intervention in tight bends.

The HSTC system can also be completely deactivated. When the engine is restarted, the system automatically reverts to the last selected mode.

The HRC-developed "Launch Control" start-assist system also has 3 options: Mode 1 with a high rev limit, Mode 2 with an intermediate limit (factory setting) and Mode 3 with a low rev limit.

Last but not least, the EMSB (Engine Mode Select Button) map selector allows you to intervene on engine characteristics. 3 mappings are available to suit rider preferences and riding conditions: Mode 1 (Standard), Mode 2 (Gentle) and Mode 3 (Aggressive).

The buttons for selecting Launch Control, HSTC, EMSB and the injection indicator are located on the left handlebar. Pressing the HSTC button for 0.5 seconds switches the system to the next mode, confirmed by a flashing green LED: 1 flash for Mode 1, 2 for Mode 2 and 3 for Mode 3.

A race towards progress that the cross had accelerated several years ago. In 2018, the 2018 CRF250R had taken a major step forward by inheriting the "Absolute Holeshot" philosophy of the 2017 CRF450R. Thanks to a 7th-generation frame, revised geometry and suspension, but also an all-new dual ACT engine, the CRF250R did more than demonstrate its potential in the hands of official Honda riders but also amateurs thanks to its various engine mappings and meticulous ergonomics.

In 2019, barely a year after a complete overhaul, the CRF 250 R is already set to receive a number of upgrades, both to the engine (improved mid-range torque, HRC starting aid...) and to the chassis (front brake caliper, adjustable Renthal handlebars...). In 2020, the frame and swingarm from the 2019 CRF 450 R will be adopted, and the engine will deliver even greater mid-range performance.

In 2022, the chassis of the 2021 CRF450R was adopted, enhancing performance and agility. At the same time, the engine also gained in mid-range torque to adapt to the new chassis, while at the same time being more robust and enduring.

Today, it's back on the road to becoming the machine to beat!

cRF 250 R WE

For 2025, the CRF 250 R WE, a special "WORKS EDITION" version, will also be available. Benefiting from all the evolutions of the classic CRF 250 R, it is distinguished by additional parts that enhance both its efficiency and attractiveness.

manufactured on the same production line as the CRF 250 R in Kumamoto (Japan), the CRF 250 R WE features a Yoshimura exhaust and TwinAir air filter element for optimum airflow management. New ignition and starting aid settings also feature on the CRF250RWE, as does a hydraulically operated clutch with a specific receiver. This hydraulic clutch system reduces lever force by 16% compared to a conventional cable-operated system. It also reduces lever play and improves feel as clutch temperature rises.

At the end of the casting process, the cylinder head's intake ducts are hand-finished by specialized workers at the Kumamoto plant, a job that makes airflow even smoother and optimizes the use of power.

To underline the CRF 250 R WE's special status, the cylinder head is laser-engraved "CRF WORKS EDITION".

On the suspension side, the rear shock absorber features an ultra-strong titanium-treated axle and improved wheel travel control. This evolution goes hand in hand with a fork further enhanced by Kashima black treatment on the fork legs and titanium treatment on the dip tubes. The CRF250RWE also features a bright red cylinder head cover, black upper and lower tees, a gold DID DM2 drive chain, Renthal handlebars, special rubber grips, a Throttle Jockey seat cover, black DID-LTX rims, black front axle mounts and special graphics with laser engraving on the rims and some suspension components. Compression adjustment knobs on the top of the fork tubes allow easy, tool-free adjustment.

News and media credits: Honda