Compression Release Kits

2 products

Compression Release Kits for Harley-Davidson brings together the complete components needed to fit or replace a compression release system on 1999-2017 Twin Cam Harley-Davidson engines, including cylinder head and actuator combinations. Iron City Motorcycles is an authorised Harley-Davidson dealer in Leeds, and we stock S&S kits — the acknowledged industry leader in big-bore and stroker Harley-Davidson engine parts. A compression release bleeds off cylinder pressure during cranking, which is essential when running high-compression pistons or a stroker kit on a Dyna, Softail or Touring Harley-Davidson. Without one, the starter simply cannot turn the engine over reliably. Fitting a proper kit makes the whole system dependable and keeps your tuned Harley-Davidson starting first time. Browse the full range below.