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ZIPPER Red Shift/Fuel Moto Z-Factor 590 Chain Drive Camshaft. Fits Gen 2 Milwaukee-Eight 2024up when running the SE 135ci Crate Engine. Street Glide, Road Glide & CVO Road Glide ST 2024up, Touring 2025up & Softail 2025up

Thu, 23 Jul 2026 15:05:21 +0000

The New Z-Factor M8 Cam by Red Shift Cams® was developed by Zippers Engineering Team, in conjunction with the dyno experts from Fuel Moto, to complement Fuel Motos Mufflers and performance parts.

The Z Factor RS-590 in.ZZ Chopin. camshaft is our latest high output cam offering a combination of high RPM horsepower along with broad torque unmatched by other camshafts, VERY aggressive idle sound. For use in Milwaukee-8 Gen 2 and Gen 1 engines 11.4-12:1 compression. Requires Hi-lift springs. Works with the suppled valve springs in all Fuel Moto Level Z and Level AX heads, also works with the standard springs in Screamin Eagle Extreme CNC ported heads, and works as bolt in on SE 131 & SE 135 engines. The Z-Factor RS-590 works especially well in the Gen 2 SE135 crate engine.

Suggested Additional Purchase

* Cam change gasket kit # CG-C10302

* S&S Quickee Pushrod Kit # SS930-0123 / SS930-0137

* S&S Tappet Cuffs # SS330-0655

* S&S Cam Chain Tensioner # SS330-0737

* S&S Oil Control Valve # SS310-1150

* Full Complement Inner Cam Bearing # FE-2080

Tech Tips:-

Does Not Fit Road King 2024-2025, CVO Street Glide 2023up, CVO Road Glide 2023up

*“On Line Shopping Only

The post ZIPPER Red Shift/Fuel Moto Z-Factor 590 Chain Drive Camshaft. Fits Gen 2 Milwaukee-Eight 2024up when running the SE 135ci Crate Engine. Street Glide, Road Glide & CVO Road Glide ST 2024up, Touring 2025up & Softail 2025up appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Red Shift/Fuel Moto Z-Factor 534 Performance Cam Kit – Black Pushrods. Fits Gen 2 Milwaukee-Eight 2024up. Street Glide, Road Glide & CVO Road Glide ST 2024up, Touring 2025up & Softail 2025up

Tue, 11 Nov 2025 15:35:02 +0000

This is a comprehensive cam kit. The kit includes the Red Shift/Fuel Moto Z-Factor 534 Lift Cam, Feuling HP+ Lifters, Cam Change Gasket Kit & Adjustable Pushrods with Black Covers

The New Z-Factor M8 Cam by Red Shift Cams® was developed by Zippers Engineering Team, in conjunction with the dyno experts from Fuel Moto, to complement Fuel Motos Mufflers and performance parts. The New Z-Factor M8 cam is a bolt-in camshaft, specifically developed for Center-Cooled models Gen II engines117in., 121in., or larger engines.

The RS534 is designed to shift a modest amount of power from the early torque side of the curve, to the peak power side, providing instant acceleration from 2,500 RPM while pulling strong up to and beyond 6,000 RPMs. Made with a proprietary Red Shift Cams® ramp design, delivering quiet operation and long valve train life.

Suggested Additional Purchase

* S&S Tappet Cuffs # SS330-0655

* S&S Cam Chain Tensioner # SS330-0737

Tech Tips:-

Does Not Fit Road King 2024-2025, CVO Street Glide 2023up, CVO Road Glide 2023up

*“On Line Shopping Only

The post ZIPPER Red Shift/Fuel Moto Z-Factor 534 Performance Cam Kit – Black Pushrods. Fits Gen 2 Milwaukee-Eight 2024up. Street Glide, Road Glide & CVO Road Glide ST 2024up, Touring 2025up & Softail 2025up appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Red Shift/Fuel Moto Z-Factor 534 Performance Cam Kit. Fits Gen 2 Milwaukee-Eight 2024up. Street Glide, Road Glide & CVO Road Glide ST 2024up, Touring 2025up & Softail 2025up

Tue, 11 Nov 2025 15:35:02 +0000

This is a comprehensive cam kit. The kit includes the Red Shift/Fuel Moto Z-Factor 534 Lift Cam, Feuling HP+ Lifters, Cam Change Gasket Kit & Adjustable Pushrods that Re-use the Stock Pushrod Covers

Suggested Additional Purchase

* S&S Tappet Cuffs # SS330-0655

* S&S Cam Chain Tensioner #SS330-0737

Tech Tips:-

Does Not Fit Road King 2024-2025, CVO Street Glide 2023up, CVO Road Glide 2023up

*“On Line Shopping Only

The post ZIPPER Red Shift/Fuel Moto Z-Factor 534 Performance Cam Kit. Fits Gen 2 Milwaukee-Eight 2024up. Street Glide, Road Glide & CVO Road Glide ST 2024up, Touring 2025up & Softail 2025up appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Deck Height Tool. Fits Milwaukee-Eight 2017up

Tue, 23 Sep 2025 02:01:42 +0000

Installed over the center of the piston, this tool will help you accurately determine such measurements as piston deck height and squish. Complete with dial indicator. A must for any engine builder.

*“On Line Shopping Only

The post ZIPPER Deck Height Tool. Fits Milwaukee-Eight 2017up appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Deck Height Tool. Fits Evolution & Twin Cam Engines 1984-2017

Tue, 23 Sep 2025 02:01:41 +0000

Installed over the center of the piston, this tool will help you accurately determine such measurements as piston deck height and squish. Complete with dial indicator. A must for any engine builder.

*“On Line Shopping Only

The post ZIPPER Deck Height Tool. Fits Evolution & Twin Cam Engines 1984-2017 appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Thunderjet Kit – Black. Fits S&S E & B Carbs & Keihin and Bendix Carbs.

Tue, 23 Sep 2025 01:59:44 +0000

ThunderJet is a jet-able, externally mounted third fuel circuit that improves the performance of 2-circuit carbs such as the S&S Super. Unmodified, these carbs typically have a low speed, or intermediate, circuit that supplies fuel from idle to approximately 2500 rpm, at which point the carbs main jet circuit becomes active, delivering more fuel to the engine. These two circuits must then supply fuel for the rest of the rpm range. The problem is: the remaining rpm range is too wide (typically2500-6500 rpm) for only 2 circuits to handle efficiently.

*“On Line Shopping Only

The post ZIPPER Thunderjet Kit – Black. Fits S&S E & B Carbs & Keihin and Bendix Carbs. appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Thunderjet Kit – Black. Fits S&S D & G Carbs

Tue, 23 Sep 2025 01:59:43 +0000

*“On Line Shopping Only

The post ZIPPER Thunderjet Kit – Black. Fits S&S D & G Carbs appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Sprocket Shaft Spacer. Fits Softail 2007-2017, Dyna 2006-17 & Touring 2003-2016.

Tue, 23 Sep 2025 01:45:29 +0000

Use these hardened and ground spacers when converting 2003 and later Twin Cam engine cases to a Timken output bearing. These spacers will provide correct primary chain sprocket alignment when assembling the engine with the wider Timken bearing.

* Suggested Additional Purchase:

1. Timken Bearing # SS31-4013

2. Timken Shim Set # Z648-605

Fitment:

Touring 2003-2016

Dyna 2006-2017

Softail 2007-2017

Features & Benefits:-

* Width = 1.094in.

* OD = 1.751in.

* ID = 1.273in.

*“On Line Shopping Only

The post ZIPPER Sprocket Shaft Spacer. Fits Softail 2007-2017, Dyna 2006-17 & Touring 2003-2016. appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Sprocket Shaft Spacer. Fits Softail 2003-2006 & Dyna 2004-2005.

Tue, 23 Sep 2025 01:45:29 +0000

* Suggested Additional Purchase:

1. Timken Bearing # SS31-4013

2. Timken Shim Set # Z648-605

Fitment:

Softail 2003-2006

Dyna 2004-2005

Features & Benefits:-

* Width = 0.984in.

* OD = 1.750in.

* ID = 1.275in.

*“On Line Shopping Only

The post ZIPPER Sprocket Shaft Spacer. Fits Softail 2003-2006 & Dyna 2004-2005. appeared first on Birds Bitz Motorcycle Parts & Accessories.

ZIPPER Timken Main Bearing Inner Shim Set – Pack of 5. Fits Big Twin 1969-2002

Tue, 23 Sep 2025 01:37:10 +0000

Fitment:-

* Also fits Timken Bearing Conversion on Twin Cam Engines 2003up

* Sizes .0975in.-.1065in.

*“On Line Shopping Only

The post ZIPPER Timken Main Bearing Inner Shim Set – Pack of 5. Fits Big Twin 1969-2002 appeared first on Birds Bitz Motorcycle Parts & Accessories.