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Lowering Kits

Lowering a motorcycle is about getting both feet flat at a stop without ruining the ride, and the kit you need depends on which end you are dropping and how the bike is sprung. Front-end kits work inside the fork: the Progressive Suspension Drop-In Fork Lowering Kit on this page installs through the top of most 39 mm, 41 mm and 49 mm Harley-Davidson forks (including early touring cartridge forks) and takes up to two inches out of the front without disassembling the fork legs or changing the fork oil — a garage job with basic hand tools. Rear-end lowering is done with shorter shocks, lowering links or lowering springs, so if you are dropping the back, start in Shocks, Struts & Components and Springs.

Two rules keep a lowered bike safe. First, lower both ends by similar amounts; dropping only the front steepens the rake and makes the bike twitchy, while dropping only the rear slows the steering and can lift the front out of its ideal range. Second, check remaining travel and clearance: a lowered bike bottoms sooner over bumps, the sidestand may need shortening, and the tire must not touch the fender or exhaust at full compression. Riders who lower a bike usually benefit from stiffer Fork Springs matched to their weight, and a lowering job is a good time to fit a Fork Rebuild Kit with fresh seals.

Confirm the fork diameter and model-year fitment before ordering; Progressive's kit lists the covered models on its product page. If you need to go the other way — more ground clearance for an ATV or UTV — see Lift Kits. Orders over $50 ship free to the lower 48.

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