WR250R vs CRF250L
Click pictures to supersize.
Specs from WR250R Service Manual, 2013 CRF250L Owner's Manual, and Honda's CRF250L web site. I have added US inch/lb/gal/qt values where appropriate.
|ENGINE||WR250R 49-state model||CRF250L||Notes from the CRFL perspective.|
|Design||Liquid cooled 4-stroke, DOHC,
4-valve, single cylinder
|Liquid-cooled 4-stroke, DOHC,
4-valve, single cylinder inclined 20°
and offset 4 mm to the exhaust side
|Displacement||249.6 cc||249.5 cc|
|Bore||77.0 mm||76.0 mm|
|Stroke||53.6 mm||55.0 mm||Longer stroke often means more torque.|
|Compression||11.8||10.7||Use regular grade gas.|
|Piston rings||Top, second, oil||Top, second, oil|
|Engine lubrication||Wet sump||Wet sump|
|Oil Capacity||1.5 liter / 1.6 US qt||1.8 liter / 1.9 US qt||Always good to have more oil.|
|Transmission||Constant mesh 6-speed||Constant mesh 6-speed return|
|Primary gear ratio||78/25 3.120||73/26 2.807||See Gearing section below.|
|1st gear||37/14 2.642||40/12 3.333|
|2nd gear||29/16 1.813||36/17 2.117|
|3rd gear||29/22 1.318||33/21 1.571|
|4th gear||26/25 1.040||30/23 1.304|
|5th gear||24/27 0.888||29/26 1.115|
|6th gear||22/28 0.786||26/27 0.962|
|Secondary gear ratio||43/13 3.307||40/14 2.857|
|Clutch||Wet, multiple-disk||Wet multiplate with coil springs|
350 W @ 5,000 RPM
|Alternator triple phase output
337 W @ 5,000 RPM
|Watts up wit dis?
Those 13 watts could power a vest!
|Ignition||TCI (digital)||Full-transistor battery ignition|
|Spark plug||NGK CR9EK||NGK SIMR8A9 Gap .031-.035" (.80-.90 mm)|
|Throttle body||Mikuni 38EIS/1||PGM-FI, 36mm throttle body|
|Coolant capacity||Single radiator
0.90 liter / 0.95 US qt
1.02 liter / 1.08 US qt
More coolant is good, too.
|Starting aid||Electric starter||Electric starter|
|Frame||Semi double cradle||Semi double cradle|
|Forks||Inverted||Inverted, separate function||Could perform better than regular inverted.|
|Suspension travel front||270 mm / 10.6"||250 mm / 9.8"||Less travel, but adequate for DS.|
|Suspension travel rear||270 mm / 10.6"||240 mm / 9.4"||Ditto.|
|Brake discs - diameter front||250 mm / 9.8"||256 mm / 10.0"||Not enough different to notice.|
|Brake discs - diameter rear||230 mm / 9.1"||220 mm / 8.7"||Ditto.|
|Chain||DAIDO 520V 108 links||DID 520VF 106 links|
|Steering||Caster 26.67° Trail 111 mm||Caster 27°35´ Trail 113 mm / 4.4"||A tad more stable; good.|
|Wheelbase||1,420 mm / 55.9"||1,445 mm / 56.9"||I like 'em short; run the axle all the way forward.|
|Ground clearance, unloaded||300 mm / 11.8"||255 mm / 10"||Gotta accept this; see seat height.|
|Seat height, unloaded||930 mm / 36.6"||875 mm / 34.4"||Good for short inseamer like me.|
|Total fuel tank capacity approx.||7.6 liters / 2.01 US gal||7.7 liters / 2.03 US gal||Gotta go with an IMS aftermarket tank.|
|Weight with oil and fuel, approx.||134 kg / 295 lb||145 kg / 320 lb||This is bad news, but what are ya gonna do?|
Here's a table showing speed in gear for the WR250R and the CRF250L. 'Tranny' is the spread or ratio between 6th and 1st gears. The small font 'MPH/1K RPM' shows 6th gear speed for each 1,000 RPM.
I'm using the final gearing of my own modified WR250R (47/12) and a proposed final gearing for the CRF250L (45/13). I'm showing these numbers rather than stock gearing because I want to compare numbers for motos set up for my own use. I consider it a waste of time to study stock gearing when it does not apply to me and many others. I chose the CRFL gearing so 1st gear is about the same as the WRR. I'm also using the tire circumference of the Pirelli MT43, my chosen rear DS tire. Because of the wider tranny spread of the CRFL, the max speed I have selected (at 8K RPM) is higher than the WRR, but not by much.
|1000||2.4||3.5||4.9||6.1||7.2||8.1||8.14 MPH/1K RPM|
|8000||19.4||28.2||38.8||49.2||57.5||65.1||<-- my max|
|1000||2.4||3.8||5.1||6.2||7.2||8.3||8.35 MPH/1K RPM|
|8000||19.3||30.4||40.9||49.3||57.7||66.8||<-- my max|
Although the RPM shown in the table runs all the way up to 10,000 RPM, I suspect that I've never ridden my WR250R at anything over 8,000 RPM which means I top out at 65.1 MPH. That's about right.
I don't have a max RPM for the CRFL, but I suspect I will not ride it much over 8,000 RPM and that gives 66.8 MPH - very acceptable and faster than the WRR.
I used a picture showing both motos in approximately the same scale to illustrate the heights of the seat low point (6) and seat rear (7) using the CRFL as the base. Also shown is the bottom of the frame (3) and top of the fork (8). Lines 1, 2, 4, and 5 show that the scales are close, but not exact.
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Specifications subject to change without notice or regard to customers' expectations based
on previous model years' specifications or previous specifications for this model year.
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