Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles
Issue link: https://magazine.cyclenews.com/i/126804
New RA.V.E. valve frOmRotax resnaoes eXhaust CAN-AM TAKES THE UNDER-200cc CLASS TO THE LIMIT! .' flow as you ride It's no secret that small changes in a bike's exhaustsystemcan make a big difference in the way its engine performs. Thesystem that delivers peak, charging-down-a-straight power is not the same system that pumps out maximum torque for blasting out of slowcorners. i A That's why most bikes II· come with a +. middle-of-t he~ t road pipe: not • i . , ideal at top speed, but not hopeless at low. NowRotax has added a remarkable device to the new Can-Am 125 and 250cc liquid-cooled powerplants. It's called the Rotax Aut omatic Variable Exhaust. r BRAVE. changes t he f low pattern of your exhaust system as you race. Auto matically. At high engine speeds (FIG. A), RAV E. offers the high·volume and effe ctive extractio n propertiesof a peak power system. At lower engine speeds (FIG. B), a guillot ine valve, mount ed in the port and activated by exhaust pressure, progressively closes to help maintain t he f low velocit y necessary for good ext raction. RAVE. isa highly effective, yet remarkably simpledevice. And there liesits advantageover other designs. There are no complicated linkages t o break, no delicate mechanisms t o carbon up. . Simply excellent perf ormance. At any engine speed. h Meet the 200 ASE from Can-Am, a new enduro bike . that isgoing t o create a significant balance-of-power swing in the ongoing class struggle! TheCan-Am 175 ASE was an exceptional bike. But, every t ime they compet ed on it, Can-Am riders were giving away 25cct o t he class limit . The new Can-Am 200 ASEputs an end to all that unf airness. Those ext ra zscc's are no ordinary cc's, They're fro m Rotax. And they were IS NEW QUAD LINK II THE LAST WORD IN RISING RATESUSPENSION? The ideal dirt bikesuspension should react perfectly to everyt hing from ripple bumps to stutter bumps to whoops... to absorbing the force of a high alt itude landing. Working wit h just a few inches of suspension travel and some neat t ricksof lever mechanics, t he best produced, not by opening out t he old 175, but by sleeving the oversquare, rotary-valve 250. The result isan enginethat is incredibly strong, aswell as impressively powerful. Handling has been improved too, with the new Quad Link II rear suspension and a lighter, alloy swingarm. In the toughest woodssect ions or the fast est hare scrambles, Can-Am's new 200 ASEisgoing to make a big difference.l n greater rider comfort, in lower point scores. And in result scolumns all across t he country. any real suspension cando is cover t hat part of t he surf ace deflect ion range the designer thi nks is most important. . Take someother popular suspension designs. They're Real Comfortableon lesser bumpsbut " look out below" when you land ajurno . On t he other hand, last year'sCanAm suspension was built t o swallow almost any landing short of atmosphere re-entry. Now, new Quad Link II offers the best of both worlds: except ional rider comfort and heavv-dutv disaster orotect lon'"It's on every new Can-Am motocross and enduro bike. And it will make a noticeable difference wherever you ride. I3UADLINKII The ASE's from Can-Am just keep getting better From New England forests to California deserts, Can-Am ASE's havehad an impressive season across the country in the hands of both fact ory riders likeJohn Martin and Geoff Ballard as well as hun- . dreds of 100% privateers. What all those riders liked best about the ASE's is still . there, But dozens of improve- . '. unsprung weight. But there's a lot more you notice when you ride these bikes. Thegentl e but posit ive action of the new Quad Li nk IIrear suspension. The confi dence-building power of the double leading-shoe front brakeon the 500 ASE. The improved comfort and cornering potential of the new seat/tank combination. All these th ings make th e new ASE's better ASE's. But they've st ill got what Martin and Ballard and every other CanAm rider likesbest: the kind of bedrock ments have-been made that reliabilit y t hat lets you comwill make ASE performance pete every weekend wit hout even better. a t eardown every other Some of them you can week. see just looking at t he bikes. Rotax reliability. It's the Air-deflector wingsand por- heart of these new Can-Am cupined cylinder fi ns f or bet- ASE's. And the logic behind ter cooling. Answerproducts your next successfu l season. muffler/spark arrestor for improved exhaust efficiency. New alloy swinsarm for less to turn the deepest woods into a motocross track HOW The Can-Am liquid-cooled 250 ASELlC is t he ult imate in built-to-win enduro machinery. It is, in effect, a motocross bike with a few refinements to makeit suitably civilized in the woods- s-soeec gearbox, medium-weight f lywheel, odometer, lights and an Answer products low- restrict ion spark arrest or/ muffl er. The 250 ASE LlC isavailableonly on special order from your Can-Am dealer. When you get it, you roll it straight out of the box and int o battle . And the only extra you'll haveto buy isthe trophy case. :::::-=== ---:--=-~ . .... .., ' , .. , . ,... . " ' ..., " ...