It'll probably work.
For all those reasons T-Mar mentioned above and those which have been discussed at length on other threads, you don't really know until you try. Fortunately, B-screw adjustments, placement in the dropouts and chain length adjustments give you a lot of wiggle room. And all Deores are pretty copious derailleurs. I've got an MT-62 on my Tempo right now, 52/40 (BioPace) up front 12-34 out back. Works fine.
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● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
Last edited by Lascauxcaveman; 03-29-16 at 12:23 AM.