Zero Gravity Corsa Race Windscreens

Zero Gravity Corsa Series windscreens are designed for racing and the aggressive street rider.

Zero Gravity is proud to introduce their newest evolution in performance windscreens. The unique Corsa Series screens were designed by Zero Gravity from the ground up in collaboration with professional racers from around the world. This once "Racer Only" windscreen is now available to all riders through your favorite Zero Gravity dealer. Corsa Series screens feature a taller bubble that allows even larger riders more wind protection when tucked in at speed. Corsa Series windscreens are pre-drilled to factory specs and can be used with O.E.M. and or aftermarket well nut kits. Corsa Series windscreens come in clear or light smoke and are available for select sport bikes.

Available now:
CBR1000RR 04-07
Ducati 848/1098/1198 07-09
GSX-R1000 07-08
GSX-R1000 09
YZF-R1 09
By Sir D

Alpinestars T-Shirts

Alpinestars Fall 2009 Casual Wear is online. There's some great looking t-shirts in the line-up.
By Sir D

New Fall Icon Gear Online

Check out the new fall 2009 Icon Gear online now. See what's available and when it will ship, online! There's some seriously loud designs in the fall collection that you'll have to see to believe!
By Sir D

SpeedoHealer, on sale $114.99 + Free 2-3 day shipping

We currently are offering the Speedo Healer V4 Calibrator for $114.99 with Free 2-3 day priority shipping. Most harnesses are in stock and ready to ship.

We're the #1 volume dealer for Speedo Healers in the United States!! Learn more about the Speedo Healer.
By Sir D

Power Commander Sale

Just a quick note, the Power Commander III and Power Commander V are currently on sale through Oct 31. Visit the DynoJet brand page and shop by bike!
By Sir D

Drive Systems USA Superlite Steel Sprockets

We've added the Drive Systems Superlite steel rear sprocket to our famous custom 520 conversion kits.

Drive Systems' Superlite Rear Sprockets are ounces heavier than alloy rear sprockets but yet last three times the life. Tired of wearing out expensive alloy sprockets in a hurry? Check out our new steel Superlite 520 sprocket. Superlite rears are also the same weight as Supersprox Stealth Tri-Metal sprockets but cost less.

Currently available for Honda, Suzuki, Yamaha with Kawasaki sprockets coming in the next few weeks.
By Sir D

M4 Shorty Slip-on for GSX-R600/750 06-07

M4 Performance Exhaust has released a new slip-on for the 06-07 GSX-R600/750. That's right, you read correct, it's for the 06-07. I like to see companies going back to fill a demand in the market and this is a wonderful looking and sounding slip-on exhaust in my opinion. The super-short muffler tucks away beautifully and works well with the lines of the motorcycle. This slip-on comes with a quite insert installed so the neighbors don't complain about the noise.

Check out the video on YouTube
By Sir D

K&N Releases "Race Spec" Air Filters for Select Bikes

K&N Engineering, Inc., releases new "Race Spec" OEM replacement type air filters for the 08-09 R6, 09 R1 and 09 GSX-R1000.

- K&N's RACE SPECIFIC High-Flow Filter Media
- Lowers restriction, increasing horsepower and torque
- Fuel-Management modifications WILL BE necessary.
- Closed-Course Competition Use ONLY.
- Washable & Reusable
- One-Year Limited Warranty
- NOTE: MUST be oiled prior to installation

BMC's had a line of "Race" filters for quite some time now. Is it a little too late in the game for K&N to be releasing a "race spec" filter? I think not.

Most seasoned riders tend to gravitate towards BMC filters as the "must have" product for their sportbikes. I think this very reason is due to BMC's focus on motorcycle filters in the consumer U.S. market and the availability of their "race" version which gives our beloved Sunday-Rossi-wanna-be's a chance to feel sporty. I tend to think the majority of new riders would go for K&N given their huge brand presence there in the USA. Heck, I had a K&N in my 03 R6 when I started riding. I use K&N in my automobiles. Oddly enough, my current 06 R6 breathes through a BMC Track Filter. I guess I think I'm fast - ha ha.

In the end both companies seem to make a good product. BMC Filters are re-usable and washable just like K&N filters but you rarely hear about it. Marketing goes a long way. I've read forum posts such as, "K&N? It's not a car, it's a motorcycle. Go with BMC." Did you know that BMC makes automotive filters as well? You do now.

By Sir D

You asked and we listened!

We now have shipping estimates for your orders and live availability online for most of the products we sell. No more guessing when your order will ship (or having to call) or if something is available or not. Are you looking for a Yoshimura pipe for your bike? In Carbon? Boom! The site will give you back "Available, estimated to ship on...[date]" or let you know if it's unavailable for purchase. Due to our large product selection, it's difficult to have everything in stock at all times so this new feature helps everyone stay informed.

This feature is currently in public-beta stage so feel free to give it a try! Just start browsing. We're working to add more brands to the program so you'll never order an item that isn't available or delayed again! Please let us know what you think!

Look for more website updates in the coming months!
By Sir D

520 Conversions & Gearing Changes

The term "520 conversion" means a couple of different things to different people. I hope to clarify a few things. First, a 520 conversion doesn't necessarily designate a change in gearing. For most people, the "width" of the chain/sprockets is what we'd refer to as 520, 525, or 530, etc. to make things simple (the technical term is "pitch"). The idea here is less weight on the drive train which is suppose to translate into better performance. Generally 520 sprockets are aluminum (which means they wear down faster) over the stock steel sprockets but they are lighter. A 520 conversion is generally a pretty performance oriented modification for your motorcycle so it really depends on your riding style and what you want to achieve with modifying your drive train before choosing the right set up. Remember, all the components of a chain kit (front sprocket, rear sprocket and chain) need to have the same pitch to work together.

A very popular tweak to the 520 conversion is to chain the gearing of your sprockets or the number of teeth which works miracles on acceleration of middle weight 600/750cc sportbikes. The consensus is that -1/+2, down one tooth from stock on your front sprocket and up two teeth from stock on your rear sprockets, is a good place to begin for most 600's. This is a great set-up for the performance oriented riders as it adds a big bottom end punch (helpful for these newer top end friendly bikes with little bottom end) and will bring you through the rpms/gears very quickly. This adds to the already frenzied 600 attitude but I absolutely love the way it feels. It's not a crime to run -1/+0 if you're just looking for a little boost when commuting or riding with your buddies. -1/+1 is also a popular choice.

I found that some of our customers on the big bikes (1000cc) like to do -1 in front OR +2/+3 in the rear as it lets you gear up, or use a higher gear than you usually would, while riding. This is a great benefit as most of the big bikes do about 100mph in first gear and screaming along at 11,500rpm with a hair trigger throttle and 180hp can be a bit unnerving all while at full lean. The low end is improved for your daily riding as well.

I receive a lot of questions about which brand of sprocket or chain to use. As far as the sprockets go, any hard anodized sprocket will do. Some of our top sellers are Driven, AFAM and Vortex for aluminum 520 sprockets. Front sprockets are generally steel. With chains, like most things in life, you generally get what you pay for so don't skimp on the chain and it will serve you well. offers 520 conversion kits that allow you to pick your sprocket and chains in various colors and teeth size to serve your needs. See them for Yamaha, Honda, Suzuki and Kawasaki.

What do I run? I use Driven/AFAM sprockets (-1/+2) with a DID ERV3 chain on my 06 R6 track bike. Also, note that changing your gearing will make your speedometer read wrong. A Speedohealer will fix this.
By Sir D