Burly B28-1003B Black Slammer Kit Dropped fork springs and stubby shocks for the complete price-friendly package Drop-in spring kit does not require the disassembly of the fork and can be installed in 20 minutes with the forks still on the bike on most bikes Entire kit set up to go from box to bike in under an hour with basic tools Lowers rear end up to 2.5in. Lowers front end up to 2.0in.