The glorious era of Honda’s two-strokes, which started in 1973, will end in 2007. That makes this more of an obituary than a bike test, but test we must Read More...
80 percent of Ryan Villopoto’s 2007 bike was made, modified or reconfigured in the Pro Circuit race shop. Not even the frame was left alone Read More...
It is easy to look at the 2007 Suzuki RM125 and see a throwback to an ancient era with the steel frame, revvy powerband and unchanged exterior Read More...
In his career, Mike has won races, been a serious championships threat and been mired in turmoil — think back to the 2005 Glen Helen National and the infamous “Believe the Hype” T-shirts Read More...
If you were blindfolded while on Ryan’s KX250F, you’d swear you were on a KX450F—There is no lightweight buzz coming out of the Pro Circuit exhaust, it rumbles Read More...
At first glance, this machine might make you think that Honda is bringing back two-strokes for 2014, but that isn?t the case. Just looking at this bike, you would never guess that it is a seven-year-old Honda CR85 Expert. Or, that it was… Read More...
If you own a 2006 to 2010 Yamaha YZ250, consider yourself lucky. You have one of the best motocross bikes ever made. It weighs less than a comparable four-stroke, costs less to repair and produces more horsepower per cc. And most… Read More...
WHAT IS IT? Dirt Tricks? automatic KTM cam chain tensioner uses oil pressure, combined with a mechanical ratchet system, to maintain constant pressure on the timing chain (and avoids the possibility of the cam tensioner collapsing during… Read More...
CAN MY OLD 450 MAKE IT ANOTHER SEASON OR TWO? THE MONEY YOU SAVE CAN FINANCE YOUR RACING CAREER Let’s take it for granted that your trusty, but rusty, old bike isn’t leaking fluid out of the shock, making clunking… Read More...
LOOKING FOR THE BEST 2007 SUZUKI RM250 BRASS Dear MXA, Can you tell me your corrected jetting specs for the 2007 RM250 two-stroke? After years of horrible RM250 jetting, Suzuki did a fairly good job… Read More...
Most modern motocross bikes don't need a different offset. They need tender loving care, careful fork adjustment, perfectly matched race sag and the best front tire possible. That said, the MXA wrecking crew has struggled with the cornering… Read More...
Norco , CA. (May 29, 2007) Dubach Racing Development (DRD), is proud to announce immediate availability for the new CRF Radiator Lowering Kits. DRD delivers a factory-level modification that improves handling, is simple to… Read More...
It is entirely possible that the 2007 Kawasaki KX250 is living on borrowed time. Last year, with little or no warning, Kawasaki dropped the KX125 from its lineup. The fact that the KX250 survived into 2007, albeit unchanged, is a testament… Read More...
The truth about 250cc two-strokes is that they are wonderful pieces of racing machinerytechnically advanced, lightweight, blazing fast, cheap to maintain, and capable of being worked on with backyard tools. All of that is undeniableas is… Read More...
(press release) Kawasaki's all-new four-stroke KX?250F rose to the top to become one of last years best motocross bikes. For 2007, Kawasaki improves the championship winning KX250F with a host of engine and chassis modifications designed to… Read More...
YZ450F New for 2007: Replacing the upper cast triple clamp with a light and strong forging, slightly reducing steering head rigidity, and the use of lighter outer fork tubes; lighter wheel rims and light wave-type brake rotors add up to… Read More...
RM 125 2007 RM125 Get ready for a shot of mid-range designed to help you blast past the competition. The RM125 has a wider powerband and more controllable power delivery than ever. Couple that smooth, strong power and refined… Read More...
KX250F Kawasaki's all-new four-stroke KX250F rose to the top to become one of last years best motocross bikes. For 2007, Kawasaki improves the championship-winning KX250F with a host of engine and chassis modifications designed to… Read More...
New for 2007 New larger 41mm Keihin FCR carburetor. New smaller exhaust valve for improved flow and smoother power delivery. Engine decompression system is lighter and more compact. New link-type front brake master cylinder improves front… Read More...
New for 2007 New camshaft and cylinder-head porting improve power output above 8000 rpm. New intake valve springs match new camshaft. New crankcase venting for improved engine power. New exhaust header works in conjunction with new… Read More...