|1968 Suzuki two-page advertisement from Nothern America.
Click to enlarge. ”Suzuki makes it!” The models offered in 1968 were: Suzuki 500 Five (T500 Cobra), T-305, TM 250, AS 50 Colt, X6 (T20). Published in Cycle Guide magazine, May 1968
It says the following of the T305: ”See the Suzuki Moto-Cross TM250– Not only looks the part, but has the parts to meet all European Moto-Cross specs. 250cc aluminium Dual-Stroke engine. 32 hp at 6800 rpm, with torque all the way. 34 mm Mikuni carb. Denso racing ignition. Works gusseted down single tube frame. The Moto-Cross is made to race.”
USA full line catalog pages: TM-125, TM-250, TM-400 (three pages).
Click to enlarge. This scan was sent to me by Gilles Nault,
Canada. Here's more scans from the same catalog.