fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Chromoly. Dimensions: .080″ thick, .585″ I.D. and 1.500″ O.D. Jims chromoly lower collars are custom machined to prevent harmonic vibrations in the springs caused by the lower collar moving in the head. Compatible with OEM parts. Will fit as a replacement for OEM 18222-83.

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Home > Parts > Engine > Top End > Valves > Collars > Jims, lower valve spring collar set. Chromoly

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Street & Performance. Titanium top collars. Kits include top and lower collars, springs and valve keys. An interference double spring design with damper that keeps the inner and outer springs from locking and reduces harmonic vibrations. Spring OD 1.460″. Pressure 160lbs@1.850″, 440lbs@1.250″. Coil bind 1200″.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > JIMS, valve spring kit. Titanium .600″ lift

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Street & Performance. Titanium top collars. Kits include top and lower collars, springs and valve keys. An interference double spring design with damper that keeps the inner and outer springs from locking and reduces harmonic vibrations. Spring OD 1.510″. Pressure 184lbs@1.850″, 422lbs@1.280″. Coil bind 1080″.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > JIMS, valve spring kit. Titanium .675″ lift

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Race valve spring set. Titanium top collars. Kits include top and lower collars, springs and valve keys. An interference double spring design with damper that keeps the inner and outer springs from locking and reduces harmonic vibrations. Spring OD 1.540″. Pressure 195lbs@1.900″, 422lbs@1.250″. Coil bind .1175″.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > JIMS, valve spring kit, race. Titanium .675″ lift

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Race valve spring set. Titanium top collars. Kit include top and lower collars, springs and valve keys. An interference double spring design with damper that keeps the inner and outer springs from locking and reduces harmonic vibrations. Spring OD 1.550″. Pressure 230lbs@1.875″, 700lbs@1.200″. Coil bind .1100″.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > JIMS, valve spring kit, race. Titanium .700″ lift

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Red painted. High performance .560″ lift spring set for higher spring pressure. Developed to be used with 503723 steel top collars. No machining required.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > Andrews, high performance spring set .560″ lift

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Steel top collars. Installed pressure 183lbs@1.760″, open pressure & height 380lbs@1.250″, coil bind@1.180″. Direct replacement, installs without machining or rocker box clearancing. High tensile chrome silicone wire with a shot-peened heat treatment and a super NexTex® finish. Kits include springs, lower & upper collars, shims, keys and Viton® seals. Compatible with stock 5/16″ (7.94mm) diameter valve stems.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > Feuling, Econo Beehive valve spring kit. .585″ lift

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Direct replacement, installs without machining or rocker box clearancing. High tensile chrome silicone wire with a shot-peened heat treatment and a super NexTex® finish. Kits include springs, lower collars, titanium upper collars, shims, keys and Viton® seals.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > Feuling, Endurance Beehive valve spring kit. .650″ lift

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

Installed pressure 217lbs@1.789″, open pressure & height 415lbs@1.215″, coil bind@1.125″. Direct replacement, installs without machining or rocker box clearancing. High tensile chrome silicone wire with a shot-peened heat treatment and a super NexTex® finish. Kits include springs, lower collars, titanium upper collars, shims, keys and Viton® seals.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > Feuling, High Load Beehive valve spring kit. .750″ lift

fits  84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)

.060″ & .015″ thick. 1.500″ OD & .645″ ID. Includes 4 shims of each size.

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Home > Parts > Engine > Top End > Valves > Springs & Spring Kits > Feuling, machined valve seat spring shim kit