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S&S Cycle 84-99 BT 4-1/8in Stroke Flywheel Assembly

SKU: SSC320-0420

SSC Flywheels...

S&S Cycle 84-99 BT 4-1/8in Stroke Flywheel Assembly

SKU: SSC320-0420

SSC Flywheels...

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A$3,304.17 A$3,710.32
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

This 4-1/8" stroke 8-1/2" diameter flywheel assembly replaces the original flywheels in S&S® 111" V111 engines for 1984-99 HD® big twins. Flywheel assembly is three piece design. Pinion and sprocket shafts are forged as part of the flywheel. The only joints in the assembly are where the 1.671" diameter connecting rod crankpin is pressed into the flywheels.

Data: v4.2 - Upd: 2026-10-18 20:12:58

Features

  • Assembly is trued to less than .0005" runout on pinion and sprocket shaft bearing surfaces, making them capable of higher rpm
  • Flywheels are CNC machined from heat-treated, closed die, steel forgings, which are 114 percent stronger than late style stock steel flywheels
  • Fully assembled with premium quaility S&S® heavy duty 7.667" connecting rods, with full width wrist pin ends, and dynamically balanced

Specifications

Reference Information

Brand Name/s S&s Cycle
StreetFX SKU ssc320-0420
SFX Item ID 4231127
Supplier Item Code 4231127
Manufacturer SKU 320-0420
Manufacturer UPC N/A
Alternative References 4-1/8in

Compatibility

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