First, you will not hurt the dust seals, or any seal for that matter, by compressing the forks all the way... unless you're strong enough to copmpress them in a nanosecond. Doing it that quickly might damage seals. Compressing them with ratchet tie downs won't hurt a thing - BTDT.ytownmac said:Are you sure that you want to compress the front shocks.
There has been some information, on this site, that by compressing the front shocks, in transit, you could damage the fork seals.
Many of the new devices, for transporting bikes, lock in the front wheel without having to compress the front shocks.