HARLEY-DAVIDSON | Summit Racing

S&S Cycle Early Twin Cam Gear Drive Cam Chest Upgrade Kits 310-1267

S&S Cycle 99-06 BT Gear Drive Cam Chest Kit w/o Cam, w/ Chrome Pushrod Tubes

Part Number: SSY-310-1267

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 131 in. Big Bore Kits 910-0764

PERFORMANCE, 131" KIT - BLK GRANITE M8

Part Number: SSY-910-0764

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 High Compression 132/136 in. Big Bore Kits 910-1010A

2017+ M8 Models 132in/136in Big Bore Cylinder Kit (Blk Granite w/ Fins) - 4.320in Bore

Part Number: SSY-910-1010A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle V111 Cylinder Kits 910-0219

S&S Cycle 84-99 BT 84-99 BT 4 1/8in Bore Cylinder Kit For S&S V111 Engine - Natural

Part Number: SSY-910-0219

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle 117 in. Big Bore Kits 910-0474

S&S Cycle 07-17 BT 117in Big Bore Cylinder Kit - Stone Gray

Part Number: SSY-910-0474

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Super Stock Cylinder Head Kits 900-4278

2006 Dyna 91cc .032in Manifold Surface Cylinder Heads - Silver

Part Number: SSY-900-4278

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Super Stock Alternator-Style Crankcases 31-0001

S&S Cycle 84-91 BT w/ 3-5/8in Bore Super Stock Alternator Style Crankcase - Natural

Part Number: SSY-31-0001

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Milwaukee 8 Gear Drive Cam Chest Kits 310-1009A

S&S Cycle 2017+ M8 Models Gear Drive 465G Cam Chest Kit w/ Black Pushrod Tubes - Water Cooled

Part Number: SSY-310-1009A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 129 in. Big Bore Kits 910-0844A

2017+ M8 Models 129in Big-Bore Kit 4.375in Stroke Non-Highlighted Cylinders

Part Number: SSY-910-0844A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 High Compression 132/136 in. Big Bore Kits 910-0909A

2017+ M8 Models 132in/136in Big Bore Cylinder Kit +8.5cc Dome (Blk w/ Fins) - 4.320in Bore

Part Number: SSY-910-0909A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 High Compression 132/136 in. Big Bore Kits 910-1009A

2017+ M8 Models 132in/136in Big Bore Cylinder Kit (Blk w/o Highlighted Fin) - 4.320in Bore

Part Number: SSY-910-1009A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Flywheel Assemblies 320-0396

FLYWHEEL ASSEMBLY 4"

Part Number: SSY-320-0396

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle T124 Cylinder Kits 910-0226

S&S Cycle 99-06 BT 4-1/8in Bore Cylinder & Piston Kit - Wrinkle Black

Part Number: SSY-910-0226

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Flywheel Assemblies 320-0450

S&S Cycle 2007+ BT 106in Stock Bore Stroker Kit w/ Tapered Bearings

Part Number: SSY-320-0450

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 Flywheel Assemblies 320-0598

CRANKSHAFT, M8 FLYWHEEL 4-1/2" TAPERED

Part Number: SSY-320-0598

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 Flywheel Assemblies 320-0601

CRANKSHAFT, M8 FLYWHEEL 4-3/8" TAPERED

Part Number: SSY-320-0601

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Flywheel Assemblies 320-0417

CRANKSHAFT, FLYWHEEL ASSY W/O SPROCKET SHA

Part Number: SSY-320-0417

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle 93 in. Big Bore Cylinder Kits 91-9101

S&S Cycle 66-84 BT 93in Standard Compression 3-5/8in Big Bore Cylinder & Piston Kit - Gloss Black

Part Number: SSY-91-9101

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle 74 in. Stock Bore Cylinder Kits 91-9012

S&S Cycle 66-84 BT 3-31/32in Stroke 3-7/16in Bore 9.0 To 1 Compression Cylinder Kit - Gloss Black

Part Number: SSY-91-9012

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle T117 Cylinder Kits 910-0227

S&S Cycle 99-06 BT 4 1/8in Bore Cylinder & Pistons Kit For Early Production S&S T117 Engine - WBlack

Part Number: SSY-910-0227

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle 117 in. Big Bore Kits 910-0321

07-17 BT 117in Low Compression 4-1/8in Big Bore Kit - Silver

Part Number: SSY-910-0321

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle M8 131 in. Big Bore Kits 910-0762A

2017+ M8 Models 4.250in Bore 4-5/8in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

Part Number: SSY-910-0762A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Flywheel Assemblies 320-0475

124 FLYWHEEL ASSEMBLY

Part Number: SSY-320-0475

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Milwaukee 8 Gear Drive Cam Chest Kits 310-1010A

S&S Cycle 2017+ M8 Models Gear Drive 475G Cam Chest Kit w/ Black Pushrod Tubes - Water Cooled

Part Number: SSY-310-1010A

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

S&S Cycle Super Stock Cylinder Head Kits 900-0349

S&S Cycle 2006 Dyna Super Stock 91cc Cylinder Heads - Wrinkle Black

Part Number: SSY-900-0349

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

HARLEY-DAVIDSON Parts and Accessories