Probably around 77 or 78.. Duck Lake, just north of Kelowna airport. Back when we had ice every year.. We dont now.
Studded up 750.. 640 ish screws on the back, 190 ish up front... Got really good traction..wheelied easily..
Lots of fun if the lake had little snow.. 100 mph was pretty common.. Great fun..
We had it in a CMA sanctioned ice race, but with stock pipes...it holeshot everyone, but was hitting the pipes which limited cornering..
Had a lot of fun on that lake, used to build a fire and hang out for most of the day ..... Sigh.... The good old days..