Archive for the 'Engines' Category

Zipper’s New Muscle 107” Kit For Twin Cam® Engines

Zipper’s has carefully developed a new Muscle 107″ Kit for Twin Cam® engines  with optimized compression, porting, camshaft design and inlet flow, Combined with their best-in-class finish work, extensive dyno and ride testing, it provides a very balanced engine kit that will not disappoint. The Zipper’s Muscle 107 delivers fantastic power curves with both torque […]

Zipper's Kits For New Bikes

S&S Cycle Tells You How To Break-In Your New Engine

Below the correct procedure to break-in your engine

. 1- Initial start up. Run engine approximately one minute at 1250-1750 rpm. DO NOT crack throttle or subject to any loads during this period as head gaskets are susceptible to failure at this time. During this time, check to see that oil pressure is normal, that oil […]

Spectro Oils

Gift Your Bike With Extra Performance

Holidays season is not too far away. If you are into performance, you could gift yourself with one of Zipper’s Performance products or put it on your wish list. Guaranteed you will not re-gift it Black S&S® E & G Carb Kits with ThunderJet®. A Zipper’s exclusive. Zipper’s new black-finish S&S® E/G carburetors, with or […]

Progressive Suspension

Halloween Special. S&S Cycle Frankenstein Engines. A Few Still Available.

For the month of October, S&S Cycle is once again offering paranormal prices on monstrous Frankenstein engines, in honor of Halloween. They’re built with first quality, non-current components so you save a bundle! Just the thing for a budget performance upgrade or a custom build. 
Grab yours today! Quantities are limited – when they’re gone, […]

Ferrari Patents Motorcycle V-Twin Engine Design

Patent application submitted suggest that Ferrari may be considering producing a motorcycle, The patent covers the design of an “internal combustion engine having two cylinders, which are arranged in a ‘V’ configuration.” Ferrari has also filed a trademark application for the name ‘Cavallino’ (pony in Italian) for use on a vehicle without precision of type, car […]

Winter Is Engine Upgrade Season

Zipper’s Performance is among the couple of US companies able to provide the best solution to all of your engine upgrade and rebuild needs. Your buddies on their new 103’s and 110’s kicking sand in your face?  You don’t have to spring for a new bike to keep up, just breathe some new life into […]

Motorcycle Parts Website

Vintage Vibe For Your Evo Bike

Now settled in the US, European independent parts manufacturer EMD just released the WTF line of engine rocker boxes to give your hard-working Evo 1340 Big Twin or Evo Sportster engine a retro style. These cast aluminum covers bolt in place of your OEM rocker boxes and extend down to hide the lower box. As […]

New S&S Air Cleaner Kit For 2014-2015 Indian Motorcycle Thunder Stroke 111 Models

It was expected that S&S Cycle would use its expertise in engine breathing to offer an Air Cleaner Kit specifically created for the new Indian Thunder Stroke 111 motor of all the Chiefs Classic, Vintage, Chieftain) and Roadmaster 2014-2015 models. So, if you want to make your Indian more warlike, giving it more air to […]

CV Performance Harley Velocity Emulsion Tube To Improve Throttle Response

CV Performance, a company specializing for over 25 years in tuning and improving Harley-Davidson CV carburetion, offers this Velocity Emulsion Tube as a factory replacement part for the stock main jet holder. The CV Performance Harley Velocity Emulsion Tube helps you get back your bike’s throttle response and improves performance. With design features that improve […]

Sportster Performance Improved With Zipper’s Zip Kit

The Zip Kit by Zipper’s Performance is a proven complete performance package powered by ThunderMax®. Included in it is a Zipper’s MaxFlow performance air cleaner, a performance exhaust of your choice and the cutting-edge ThunderMax® with AutoTune EFI Controller. The ThunderMax® gives you the flexibility of future performance upgrades with a simple download of a […]

Fast Motorcycle Industry News

Harley-Davidson Inc. Declares Dividend. Debt Gets BBB Rating. Harley-Davidson announced that its Board of Directors approved a cash dividend of $0.275 per share for the third quarter of 2014. The dividend is payable September 26, 2014 to the holders of record of the Company’s common stock on September 16, 2014. Harley-Davidson (NYSE:HOG) has earned a “BBB” […]

Spectro Performance Oils Answer Your Questions

Question. What does the API rating mean and how do you tell what is needed for your application, i.e.; Harley motorcycles, Truck etc.? Answer By Spectro Performance Oils. To ensure quality levels and compatibility oils have a “rating” system to help consumers decide what oil is right for their vehicle. There are several organizations that […]

CV Performance Choke Bracket For Better Access To The Choke Knob

CV Performance, a company specializing in tuning and improving Harley-Davidson CV carburation for over 25 years, offers the Harley Choke Relocation Bracket to help Harley-Davidson owners have quick, easy access to their choke knob, while giving the carb and engine a better look. The CV Performance Choke Bracket moves the CV Carburetor Choke knob from […]

The New Indian Scout The Way You Never Saw It. Naked.

Not surprisingly, I receive daily a flurry of emails , mostly technical questions, regarding the all-new 2015 Indian Scout. You want to know more about the engine and 6-speed transmission. So, let me summarize again the available info, followed by some CAD renderings that Indian Motorcycle graciously provided to me. The 2015 Indian Scout is […]

Spectro Performance Oils. Alex Josefson Is New President

Following the retirement of Dave Miller who was the President since 2003, Alex Josefson, grandson of founder Robert H. Wehman and son of Thomas Josefson and Barbara Wehman Josefson, both current vice presidents, has been named President of Intercontinental Lubricants Inc., the parent company of Spectro Oils. Also joining the management are Alex Josefson bothers […]

Ness Big Shot 2 Fuel Tuner

Installing a new exhaust or upgrading your bike air cleaner always requires a re-adjustment of your fuel system. It used to be that you had to play with screws and jets to find the optimal fuel power curve. Several systems are now available to let you add or subtract fuel from your bike fuel injection […]

S&S Cycle 2nd Annual T124 Engine Demo Days. At Sturgis Dragway August 5-6.

For the second year, S&S Cycle is organizing the T124 Engine Demo Days. If you are at least 21 years old with a valid license, you will be able to demo the S&S 124” engine bike on the Sturgis Dragway located 20523 79 in Sturgis is open to licensed drivers 21 years of age or […]

Did You Step Up Your Bike Performance With S&S Cycle Products? Show How On Facebook And Win Prizes.

S&S Cycle just started The “Step Up Contest And Giveaway.” All bikers in the v-twin community are invited to send to pictures and details of the S&S performance upgrades that they have performed to their motorcycles. How did you step up to the performance game may be illustrated by pictures showing your bike with S&S […]

Prototype Engine Rocker Covers From EMD USA

During the 6th edition of the Born-Free Vintage Chopper & Classic Motorcycle Show this weekend June 28-29 at the Oak Canyon Ranch, CA EMD will launch some new interesting old school cast aluminum parts. Above is a preview of the prototypes to be unveiled. WTF Rocker Boxes for Shovel and Sportster displayed here on Sportster […]

Black S&S® E & G Carb Kits With ThunderJet® Available From Zipper’s

You probably know that the S&S Shorty “E” & “G” is the most popular carburetor ever. Not surprisingly, the new black finish version is in very high demand and not so easy to get. FYI, Zipper’s Performance has black-finish S&S® E/G carburetors, with or without a ThunderJet® installed, in stock and ready to ship. You […]

In My Mailbox

Question.  “Cyril, I am confused. What is Viola V-Twin versus S&S Cycle?” Answer.  “Viola is the village in Wisconsin where S&S Cycle is installed since 1969. Viola V-Twin is the service parts side of S&S Cycle whose mission is to provide the bike owners and independent shops with a one stop source for service parts […]

S&S Cycle Proven Performance®. The Final Episode. Break Free.

Don’t miss the conclusion of the S&S Proven Performance® video series. In this third and final episode, S&S Cycle main man is running out of time in his quest to Break Free from the repression of the “Stock Corps”. We witness his unwavering resolve to improve the performance of his motorcycle despite the eminent threat […]

Another Wolf In Hog’s Clothing. Faster Than The Average Harley-Davidson CVO Model.

S&S Cycle has had a lot of requests or performance upgrades for 2007 and later Harley-Davidson® CVO 110 engines. Seems like folks think the big hogs are a little lacking in the grunt department. And when customers ask for something, S&S Cycle is listening.. It’s taken a little while but …Viola! Here they are! S&S […]

Quiet Bagger Power


Quiet enough to not drown out your sound system, but loud enough to feel like riding a Harley-Davidson bagger. Zippers Performance Products offers a Zip Kit powered by ThunderMax® offering a trifecta of improvements for a smoother, cooler and more powerful bagger. The zip Kit is delivered pre-mapped and ready to install. Watch the video. […]



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