Everyone asking it’s the primary spring from a 850, I did this to my 24 650 and she stands up without a hitch still need to break in the spring some to get the top speed
I think them still about the same weight as stock tires its not so much the size of the tire untill you get to the real big sizes but weight does like if you go from a 40lb rim an tire to a 80lb that you would want to change clutching
@@the.moserss the tires I found was the biggest hold up of the wheelie if you get better tires it will do it better the ones they come with don't grip good that's why people can wheelie after there worn but the spring def gives more snap at the cost of top speed but have you ever raced a 1000 there slow top end that's why if you put a big boar kit on a 650 or the 570 with the 650 motor it's a monster best of both worlds way faster way more power an Torque because of the shorter stroke