2021 Honda CRF250R
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Item Details

ID: 16795211
Make: Honda
Type: New
Year: 2021
Model: CRF250R
Tires: Front: 80/100-21 Rear: 100/90-19
Brakes : Front: 260 mm disc with dual-piston caliper Rear: 240 mm disc with single-piston caliper
Colour : Extreme Red
Warranty : No warranty
Wheelbase : 1,486 mm (58.5 in.)
Engine Type: Air-cooled, single-cylinder
Seat Height: 957 mm (37.7 in.)
Curb Weight : 108 kg (238 lb.) including required fluids and full tank of gas—ready to ride
Displacement: 49 cc
Final Drive : #520 sealed chain; 13T/48T
Valve Train : DOHC, four-valves
Transmission : Close-ratio five-speed
Bore & Stroke : 79.0 mm x 50.9 mm
Fuel Capacity : 6.3 litres
Fuel Delivery : PGM-FI electronic fuel injection with 44 mm throttle body
Rear Suspension : Pro-Link® Showa single shock with adjustable spring preload, rebound and compression damping adjustability; 317 mm (12.5 in.) travel
Front Suspension : 49 mm fully adjustable leading-axle inverted telescopic Showa SPG coil spring fork; 268 mm (10.6 in) travel
Ground Clearance : 327 mm (12.9 in.)
Compression Ratio : 13.9:1

Item Description

 Key Features
Engineering

HRC Launch Control

We’re talking about a special ECU program here: push the button to select the mode, hold the throttle open, release the clutch, and the bike will do the rest, launching you into the first turn with a big advantage. It turns your bike into a holeshot-seeking machine!

Electric Start
 
Equipped with an effortless electric starter. Convenient and lightweight, it’s a huge deal if you need to restart the bike in the heat of battle.

Gear-Position Engine Mapping

Talk about smart: This model features an ECU with special engine mapping for each gear. You can’t give an inch in this class, so having your engine deliver optimal power for each gear choice is one of the features that separates Honda riders from the rest.

Engine Mode Select (EMS)

This simple handlebar-mounted button lets you dial in engine power delivery character with a push of your thumb. Choose between Standard, Smooth and Aggressive, depending on track conditions.

DOHC Engine Layout

The double-overhead-cam (DOHC) engine layout has a unique finger-follower rocker design. Together with the rest of the engine’s architecture (bore and stroke, intake tract, piston, and more), you get more power and a higher redline.

Titanium Intake and Exhaust Valves

Light is right when it comes to a high-revving engine’s reciprocating masses. That’s why it uses titanium intake and exhaust valves. Plus, the valve angle is a super-narrow 20.5 degrees (included). Ovalized valve springs and long-wearing Diamond-Like Carbon (DLC) treated finger rockers complete the package.

Downdraft Intake and Exhaust Layout

The DOHC cylinder-head design lets our engineers straighten out the bike's intake and exhaust tracts that have been optimized to improve power and response. The intake is shorter and just about arrow straight, and the exhaust flows more efficiently too. No athlete’s going to win a sprint if they try to run while holding their breath, and it’s no different with your bike’s engine. You’ll experience both, more power and better throttle response.

Big Bore/Short Stroke


The 79 mm bore and short 50.9 mm stroke let our engineers create a high-revving engine with plenty of room for large valves. The engine breathes and revs—the two keys to making power.

Dual-Exhaust System


The dual-exhaust system is light, compact, and positioned close and low in the frame to take weight off the rear end and bring more mass to the bike’s center for improved handling. It also allows for more airflow, and that equals added power.


Total Air Management


Total air management means complete attention to how efficiently air gets through the intake, through the head, and out the exhaust. Eliminate losses here, and you make more power everywhere. And the best part? It’s free horse power—you just need a bike with smart design.


Bridged-Box Piston


Coordinated to work with the new cam profile and combustion-chamber shape, it’s the final piece to the engines performance package. The bridged-box design features a reinforcing structure between the skirts and the wrist-pin bosses that helps enable the high redline.


“H” Section Crank


Look closely at the crankshaft profile and you’ll see its “H” cross-section design. What’s up with that? Just like a structural “I” beam in an aircraft wing or a skyscraper, it boosts strength and cuts weight over a conventional crank’s shape—a big deal when you consider this part spins at over 14,000 rpm!

Gradual Pipe-Bend Radius


Notice how the dual exhaust pipes make gradual, large-radius bends out of the head, then flow straight back to the mufflers with no abrupt angle changes. Getting the exhaust out of the engine—while still maintaining a tuned exhaust length, is the key to power, while the pipes’ low mass and twin-silencer design optimize the center of mass for superior handling.


Clutch Design and Materials


The clutch uses two different types of friction material. Why? The clutch can handle the increased power of the engine without being any larger. The lighter rotating weight is directly related to how fast the engine revs.


Lithium-Iron-Phosphate Battery


Like the rest of the bike, the Lithium-Ion battery is both super light and high performing, weighing in at less than half the weight of a conventional lead-acid battery.


Titanium Fuel Tank


Every gram counts on a bike in the 250 class, which is why the CRF250R has a titanium fuel tank. Light and strong, it’s also thinner than our previous plastic unit, freeing up more space and helping to centralize fuel mass.


Engine Oil Scavenge Pump


Deep in the engine, there’s a special oil scavenge pump. While you may never see it, it helps keep the overall design compact.


Shared Engine/Gearbox Lubrication


The bike uses a shared engine/transmission oiling design. Why? Combining the two systems shaves weight and helps make the engine more compact, especially when it comes to placing the right-side cam drive and the clutch so close together.

 Performance


Double-Spray Injector Settings


The bike's fuel-injection system sprays twice per intake cycle. That helps increase fuel atomization without adding the weight or complexity of a second injector. The better fuel atomization means more power in the midrange and on over rev—you’ll feel it the first time you ride.


Cam Profiles


With input directly from our HRC factory team, we’ve changed the intake cam profiles to work with the new valves. You should feel better bottom end torque and power, while still retaining the bike's screaming peak.


Throttle Body


With a 44 mm venturi designed to speed up airflow, the bike's throttle body really reaps benefits at low engine operating speeds. You get power and snap, right now.

High Redline
With our better-breathing DOHC design and the big-bore/short-stroke engine, the rev limit is very impressive. The same goes for peak power and peak torque.
 Comfort & Handling


Showa Spring Fork


The 49 mm Showa fork features a conventional spring design that helps increase the front-suspension precision, handling and feel. The 39 mm piston diameter and 25 mm rod diameter guarantees a plush feel and supple action.


Low Rear Shock Mount


With its low rear shock mount on the frame, the bike benefits from both a lower center of gravity as well as chassis stability.


Short Swingarm


The short swingarm helps make it light, and also helps give the bike better rear-wheel traction, important considering how much power you have on tap. The swingarms design focuses on improved stability and handling, while still reducing the bike’s unsprung mass.


Dunlop MX3S Tires


Developed using Dunlop’s latest “block-on-block” design technology, the CRF250R’s MX3S tires give excellent feedback and are a perfect complement to the CRF250R’s frame and suspension.

260 mm Front Brake


The large front-brake disc measures a whopping 260 mm, with improved rear brakes that perform like never before. You get great brake feel and a pattern that cuts down on weight. Front and rear brake-disc guards are part of the package too.


Smooth Styling


Blending the body panels does more than just make the bike look smooth, fast, and stylish. It also helps you move around on the bike while riding. Nothing wrong with smooth, fast, and stylish, though.


Rear Subframe


The subframe uses extruded rear members that produce a 20-percent reduction in weight versus the previous generation. Since that weight comes off the top of the bike, it also contributes to the low center of gravity.


Flat Seat/Tank Junction


The bike features a flat seat/tank junction, including a titanium fuel tank. The superior ergonomics make it easier to move forward and back on the bike, increasing your control.

Black Rims


They may not help you go faster, but the black D.I.D® rims sure look good.