There is a brand that has been forged on motocross tracks and superbike races – and now it's improving Harley-Davidson suspensions. Fox has been one of the most recognized American suspension manufacturers since the 1970s, based near Santa Cruz, California. The brand earned its reputation in racing – by 1982, every rider in the AMA Superbike championship was using Fox suspension – and this half-century of development experience is built into every product designed for Harley-Davidson. Our range includes Fox shock absorbers for Harley-Davidson Touring, Softail, Dyna, and Sportster models, ranging from gas-atomized, monotube rear shock absorbers to fully adjustable, Quick Switch (QS3-QSR) systems with remote reservoirs. The QS3 system allows you to choose from three compression settings – maximum comfort, extra support during acceleration, or precise, sporty handling – while the QSR rebound adjustment can be fine-tuned for everything from bumpy roads to smooth asphalt. Fox shock absorbers are made from 6061-T6 aluminum, with a hard-anodized body and a chromed, low-friction piston rod, in a fully serviceable and re-valveable design – this kind of durability and adjustability explains why Fox is considered one of the easiest aftermarket brands to adjust, according to most feedback. Whether the goal is to improve ride comfort or handling – solo or with a passenger – Fox provides the race-bred quality that will make your bike perform the way a well-tuned V-Twin should.