- 1). Reduce the rear shock absorber's preload adjustment. This adjustment changes the amount of compression placed on the shock absorber's spring and can be adjusted on most motorcycles by turning the shock absorber's threaded collar with a spanner wrench. To reduce the preload and lower the rear suspension height, turn the collar counterclockwise.
- 2). Replace the rear shock absorber's stock linkage with an aftermarket lowering link. The link connects the shock absorber to the motorcycle's rear swing arm; replacing it with a lowering link changes the rear swing arm's angle to lower the rear end of the motorcycle. Installing an aftermarket link is a labor-intensive ordeal, requiring the motorcycle to be lifted off of the ground to disassemble the shock absorber and its link.
- 3). Replace the shock absorbers with a set of shorter shocks. This method is ideal for older motorcycles or cruisers that use twin rear shock absorbers, and can be done using parts taken from other motorcycles or new aftermarket components. Some aftermarket shock absorbers can lower the rear end of the motorcycle by up to 2 inches.
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