You don't use a fork brace/spacer (goes between the tire and the fender, between the fork legs)? The fork has a metal cross bar where the fender is mounted, and the brace/spacer keeps the fork from compressing. That way, you can really crank down on the straps and the bike will stay put. When I trailer my cruiser motorcycle, I use a motorcycle chock and crank down on the straps until the fork is compressed all the way. (The dirt bike fork brace is too long to work on cruiser and street bikes).