Gas stations carry a different fuel blend in the summer than in the winter. The difference between summer- and winter-blend gasoline involves the Reid Vapor Pressure (RVP) of the fuel
Whether your two-stroke race engine needs leaded fuel depends on if it pings. If it pings, you can add octane booster or run race gas (even in a percentage of leaded) until the pinging stops
How to replace a torn grip in a pinch, in a hurry, in the pits and without endangering your life
For 2009, Honda moved the front wheel 17mm closer to the crankshaft, the rear wheel 18mm farther away from the crank & in total the engine was 33mm farther forward
Brake pads are much like your favorite shoes, they have to mold to the shape of your foot to be comfortable (or in the this case the pads have to conform to the rotor)
You can change the power on your KTM 250SX two-stroke. Learn to love adjusting the power valve—that's what the adjuster is for
The 2019 Honda CRF250 got new cams, porting timing, throttle body and exhaust system—that wasn't because it ran so well in 2018
The R&D budgets have shrunk, corporate interest has waned and the Japanese manufacturers don’t want to spend what it would cost to keep up with KTM. To everyone but KTM, the juice isn't worth the squeeze
Nothing is more irritating that boots that spin around the driveway as you blast them with a power wsher
We’ve been over this a million times, but people don't always catch it the first 999,999 times—it's a normal four-stroke pipe with a resonance chamber around it
We appreciate the effort builders put into exotic project bikes, but every MXA test rider started their racing careers on used beater bikes—which they adored
The 2019 KTM axle slots are longer than they were in 2018, but they are only longer in one direction. Which way do you want to go?
Aluminum frames were lighter than the steel frames they replaced, but over time, they began to gain weight—blame castings and forgings
Fork seals, bushings, internal piston bands, non-viscous fork oil and the grease that the forks are put together with need to be worked out of the system—by riding
ASK THE MXPERTS: HOW DOES THE DOHC HONDA CRF250 DIFFER FROM THE UNI-CAM ENGINE? WHAT DOES DOHC MEAN?
Compared to the 2017 CRF250 engine, the stroke is reduced by 2.9mm, the bore bumped up 2.2mm and peak horsepower moved up 2000 rpm
The short answer is yes, maybe not today, maybe not tomorrow, but eventually. We'll always have Paris
Only in the AMA would an idea that failed miserably the first time it was used back in 1976 still be in use today. Who woulda thunk it?
KTM's and Husqvarna's one-piece top bar mount doesn't resist twisting any better than their previous one-piece bottom mount—but we have a solution
Wash your mouth out with soap! Aluminum frames look good for the bottom line, but not for holding a line as well as chromoly
The MXA wrecking crew has removed the backfire screens from our four-strokes for years (and never called the fire department once)
This shouldn't happen, but it does. Here is how to fix it the backyard way..is there any other way?
"I rolled it out to ride it and oil started leaking by the fork lugs. I’ve seen leaking fork seals but never leaking fork lugs, What's the deal?"
It's all about data, yours is old—as is the model year that you bought
A handcap is only a handicap if you let it be—meet the men who raced at the highest level with sight in only one eye
This question is so easy to answer that we wonder why anyone would have to ask it
About 60mm on average, but also the difference between being kicked in the seat of your pants or G-ing out. It is the quickest way to see if your shock spring is correct