Semoff Bros. Racing

R1 Modifications:

We replaced the stock bodywork with aftermarket parts from 'Sharkskinz'. This included all bodywork and the front fender.

We are using a D&D slip on.  The performance of the bike in stock trim is very good.  The slip on saves some weight and allows the bike to breathe a little bit easier. We are in the process of doing R&D on a D&D full system. 

We installed a Factory jet kit. We retained the stock springs and backed the air mixture screws out 1.5 turns from bottom.

A Toby steering damper was installed to settle those high speed wobbles and tank slappers.

We are using Michelin TX-15 (front) and TX-25 (rear) race tires. 

We replaced the stock shock with an Ohlins.

We replaced the stock windscreen with a Zero Gravity windscreen.

We replaced the stock side case covers with APE case covers.

We installed clip-ons from Graves Motorsports.

We used EBC Double H Sintered brake pads. They work great and last a long time (and their contingency program doesn't hurt, either!!!!)

We used Motul fluids. Per the Motul rep, we use 2 liters of Motul 3100 and 1 liter of Motul 300V. We then top it off with the 3100. We replaced the stock brake and clutch fluid with Motul 300C. We replaced the stock fork oil with Motul 10w Fork Oil.

We replaced the stock gearing and chain with 530. Many people convert to the 520 for weight savings, but, we feel safer with the 530. Many people will say that the 520 is plenty strong, but, it is just our preference to go with 530.

We replaced the stock brake and clutch lines with Russell braided stainless steel lines.

As with all race bikes, we had to fabricate some parts. Among them, a lightweight front fairing mount, a lightweight exhaust bracket, and a case guard to protect the clutch cover and puller.

As you can see, the modifications were not extensive. When racing in the super sport class, the bike must remain somewhat stock (no flat slide carbs, no lightweight wheels, no major engine work, no slicks, etc.).