Harley Davidson Sportster [2004-2020]-Endurance beehive valve spring kit

Description

The Endurance Bee basket valve spring KITs from brands are designed for Harley Davidson Sportsters models from 2004 to 2020 and offer a high -quality solution to improve engine power. These valve springs are made of robust, chrome -plated silicon wire and go through a special heat treatment and a Nextex finish to ensure optimal durability and performance.

The KIT includes light, heat-treated titanium plates with a inclination angle of 7 °, precise milled spring plate, seats, valve faults and high-quality Viton valve seals with spring-loaded valve tablers. These components are specially designed to enable the engine to turn up faster and a quieter run.

Technical details

The valve springs enable a valve hub of up to 650 without the need to edit the spring seat. They are directly unsettable and do not require any additional adjustments to the engine.

• Improved valve drive dynamics by reduced weight of the valve plate.
• Increased stability of the valve drive, which minimizes noise development and mechanical friction.
• The valve springs must be installed in the correct open height in order to be able to use the maximum hub efficiently.

The specific load values ​​of the springs at different installation heights are as follows: 198 LBS. at 1,685 (0.535 hub), 194 lbs. at 1,703 (0.553 hub), 190 lbs. at 1,724 (0.574 hub), 187 lbs. at 1,754 (0.604 hub), 185 lbs. at 1,780 (0.630 hub) and 160 lbs. at 1,800 (0,650 hub). The maximum open height is 375 lbs. At 1,150, and the coil binding occurs at 1,100.