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300xc

INSIDE SECRETS OF BUILDING A MOTO-READY KTM 300XC TWO-STROKE RACER

You live and learn, one dollar at a time. By Jody Weisel The vast majority of my racing life has been spent on two-strokes, but I?m a realist. When the four-stroke revolution came along, I didn?t feel a need to fight it. I have said many times that, if I weren?t a motorcycle test rider, I would be racing a Yamaha YZ250 two-stroke. However, my lot in life is to race and test what’s put before me, and, increasingly, since the four-stroke revolution began in 1998 and went full complement in 2006, the bikes…

THIS MUCH WE KNOW! EXPLORING THE OPTIONS OF AFTERMARKET KTM BATTERIES

The KTM is the only motocross bike to come with a battery, because it is the only motocross bike to come with an electric starter. The upside of electric starting is that you just press the button and go. The downside is that the starter motor and battery add 5 pounds to the KTM’s overall weight. (Surprisingly, it still isn?t the heaviest bike in the class.) When you buy a new KTM, there is a 4.0-amp lead-acid battery in the bike. The stock Yuasa YTX4L-BS battery weighs 3.71 pounds (and the optional 5.0…

MXA TEAM TESTED: KREFT KTM 250/300 POWERDIAL POWER-VALVE ADJUSTER

WHAT IS IT? The Kreft PowerDial is an easy-to-install KTM 250/300 power-valve adjuster. It replaces the stock KTM system so that adjustments can be made in seconds. WHAT’S IT COST? $89.95 (black), $98.95 (Gold). CONTACT? www.kreftmoto.com or (970) 403-2715. WHAT STANDS OUT? Here’s a list of things that stand out with the Kreft PowerDial. (1) Function. The Kreft PowerDial makes it possible to adjust the spring preload on the KTM 250/300 power valve without tools. In fact, we could pull over to the side o…

MXA TEAM TESTED: STEAHLY BOLT-ON KTM 250SX FLYWHEEL WEIGHT

WHAT IS IT? Bolt-on traction control for 2007?2014 KTM 250SX two-strokes. WHAT’S IT COST? $119.95 (9 ounce and 11 ounce). CONTACT? (800) 800-2363 or www.steahlyoffroad.com . WHAT STANDS OUT?  Here’s a list of things that stand out with Steahly’s KTM 250SX 9-ounce flywheel weight. (1) Weight benefits. Adding a flywheel weight increases the rotating mass, or inertia, of the engine. The most noticeable results are that the engine revs a little slower, stays in the powerband longer, is less likely…

KTM 125, 250 AND 300 TWO-STROKES TO COME STOCK WITH BOYESEN REEDS

New for 2014, the KTM  125SX, 150SX, 250SX, 150XC, 250XC and 300X (plus two-stroke XC-W models) will be equipped with Boyesen RC2 Ultra-Flow reeds. Dag Boyesen said, ?We feel privileged to help advance the winning potential of KTM’s exciting new two-stroke models. The racing heritage and high-end intake performance experience of Boyesen, coupled with the impressive technological superiority of KTM’s current two-stroke products will surely have the industry taking notice, and as a result will contin…

TWO-STROKE TEST: A CLOSE-UP LOOK AT MXA’S FULL-RACE KTM 300XC MOTOCROSS BIKE

The MXA wrecking crew started out testing he stock 2012 KTM 300XC. That test is out in the February issue of MXA. It is an alll-encompassing look of the stock bike (but it will cover the basic mods needed to turn the 300XC into an 300SX). Then, new March issue, we have a test of our completely modified 300XC. We have been racing the bike in various forms since October and have learned a lot about the jetting, suspension, gearing, spring rates, bar mounts, fuel capacity and setup. We learn a little bit m…