I hate to tell you but doing wheelies on longer swingarm bikes is much harder.
I don't know if it's the excessively long wheel base or it's due to the length of the swingarm changing the rear suspension, BUT IT SUCKS.
I thought stretching was generally drag only , or looks only.
79 K5 blazer, 6" lift 38x15" tires d44/12b lockers and chromoly axles ,6.2L GM diesel - Waste Vegetable Oil conversion - cross over steering,14"SAW nitrogen shocks, beefed shackles, shackle flip, winch/ bumpers, diff covers.
94 CBR 600 naked, handbraked, -1 +3 sprockets, one wheel operation mod
"I'm sorry, nothing quite says, "F- You, I'm from Texas" like an all-business, stripped-down K5."