CRF250R 2018 Price: $10,990 Ride Away
CRF250RH 2017 Price: $7,990 Ride Away
There’s no tighter competition than the elbow to elbow MX2 class, at amateur or professional level. Honda’s CRF250R has long been a potent weapon to take into battle thanks to its fluid power delivery and hon...
There’s no tighter competition than the elbow to elbow MX2 class, at amateur or professional level. Honda’s CRF250R has long been a potent weapon to take into battle thanks to its fluid power delivery and honed chassis that balances lightning fast agility with stability.
For 2017, Honda has dialled in an array of upgrades to the CRF250R’s engine and suspension, driven entirely by what Team HRC learn racing week in week out against the world’s best in MXGP.
The increase in peak power and torque is due to extensive HRC development of the cylinder head. Both the intake and exhaust ports are redesigned to HRC specification and the 25mm diameter exhaust valves are now titanium (rather than steel) matching the 30.5mm intake valves. A brand new camshaft profile operates redesigned valve lifters; both intake and exhaust valve lift has been increased. The inlet valve spring material is also new.
Honda’s EMSB makes an already very usable engine even more adaptable. The rider just has to stop with the engine at idle and press and hold the button for just under a second to select the next map in sequence. A highly visible LED built into the lightweight button signals the map in use with a quick press and number of subsequent flashes. If a new map is selected the choice is also confirmed to the rider.
The CRF250R’s new 249cc four-valve unicam engine is smoother and stronger off the bottom, maintains its midrange Punch and as revs rise makes not only more power and torque, holds onto it at higher rpm and for noticeably longer – useful for stringing sections or corners together without changing gear.
The CRF250R’s 49mm inverted Showa®o; SFF-Air TAC fork weighs less than a conventional-spring design, it’s easier to adjust, and it helps keep the front end planted. The 2017 model is also five millimetres longer to enhance the bike’s stability.
Introducing the 2015 CRF250R
In 2014 HRC’s engineers upgraded the CRF250R with the same aluminium beam frame and over-arching design philosophy of mass-centralisation as the CRF450R .
The new 2015 CRF250R expands on this direction of development with chassis and engine upgrades that tie it even closer to its larger capacity sibling , enhancing further its ability to cut lap times in the hands of both professional and amateur riders alike .
Honda’s 249cc MX power plant gained a redesigned cylinder head and inlet exhaust porting , with increased compression ratio . At this point in development HRC’s engineers focused on the rider’s ability to easily adjust the engine to suit conditions and riding style , plus exhaust efficiency and throttle feel .
The four-valve Unicam unit has always impressed with its broad spread of useful power no matter the revs , plus sharp throttle response .
Adding Honda’s EMSB to the mix has increased its usability further . This is a bonus for the club racer in particular ; rather than set up during the week and hope for matching condition at the weekend (or take a laptop to the track) , the rider just has to stop with the engine at idle and press and hold the button for just under a second to select the next map in sequence .
The SFF-AIR-TAC front suspension has been developed for the CRF250R by Showa to unlock the frame’s extra performance potential and shaves 1.3kg weight compared to the 14YM .
The fully adjustable right fork leg controls both compression and rebound damping force while the left fork leg compresses air using a damper-less structure . This distribution achieves a controlled right/left balance , enhancing reaction over bumps and stability while hard on the front brake .
Three chambers are employed by the left fork leg to manage effective ‘spring’ rate . The Balance chamber operates from the off and at low speed ; the Inner chamber is responsible for the mid-range stroke and the Outer Cylinder chamber is used as the forks near their bump stops .
|ENGINE TYPE||249cc Liquid-cooled 4-stroke single cylinder uni-cam|
|BORE AND STOKE||76.8mm x 53.8mm|
|COMPRESSION RATIO||13.5 : 1|
|DIMENSIONS||2,181mm x 827mm x 1,271mm (LxWxH)|
|FUEL CAPACITY||6.3 litres|
|FRONT SUSPENSION||Showa 49mm inverted SFF-TAC air fork (310mm stroke)|
|REAR SUSPENSION||Showa monoshock using Honda Pro-Link system (317.6mm stroke)|
|FRONT BRAKE||260mm hydraulic wave disc|
|REAR BRAKE||240mm hydraulic wave disc|
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