Back in the mid 70s Can Am offered a "Qualifier" kit to upgrade TNTs.The kit consisted of longer travel Betor forks and SW shocks,and an upswept exhaust and silencer.It looks like this bike could be a TNT with the kit.In their day the early Can Ams were amazing,the 175 TNT was quicker then a Yamaha DT400 enduro and the TNT250,complete with street exhaust and blinkers,could smoke a Honda CR250.However the handling of the early Can Ams could have been better and the brakes weren't the greatest but,for a brief time in the early 70s,they were far and away the most advanced offroad bike you could buy.