Tis rider dependent on the correct number of bikes. Some folks can do like I did all through grade school, and eat PBJ every day for lunch.....and have 1 bike last em like long time. Some folks (i won't name names @mrjimmyjames ) can't go 2 weeks without wanting a different one and feeling the bike regerts. In conclusion to this maximum questions. Any number of bikes equal to or greater than 1 (assuming in running condition) is correct. If anyone gets past 4:10 in that video...they can see I've been spackleman for long time. The YZ had lost its rear fender very early on in the day. I got very muddy.