hi i am around the 90kg mark and the iron is fine for me all i did was put 3 20c pices in the top of each front fork and it hardend it up fine the front was botoming out and knocking hard on country roads. not after the big expence of $1.20 and i also sofend the rear shocks .so i think 100kg would be fine. with pips heavy breather and a tuner it dose go hard. as a starter to harleys i think thay are grate
some work out to make a larger tank look good on a 48: