Retro: Yoshimura 1135R

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Yoshimura GSX-R1000RR leave you a bit cold? To celebrate the end of the Suzuki Katana’s extraordinary 20-year production run, Yoshimura produced this special version using some of the last bikes off the production line in 2001. Shedding a massive 96lbs and gaining something in excess of 55bhp over the stock Katana, the Yoshimura 1135R represented the culmination of everything Yoshimura knew about tuning the 1100cc oil-cooled motor and its steel cradle chassis. It still looks better than nearly any bike that’s come out of a Japanese factory since.
The full, yet intriguingly mysterious spec sheet is below, but
we think our favorite parts are the crazy “I’ve Got The Power!” badge
on the clutch cover and the contrastingly classy embossed black
Yoshimura logo on the tank.

Weight  Stock 241.2kg > Yoshimura 197.8kg
Horsepower Stock 95bhp > Yoshimura over 150bhp

Engine Parts, Accessories & Engine Modification     
74mm Yoshimura Piston Kit
ST-1 Camshaft
Original Hand Bent Titanium Exhaust System
Yoshimura Mikuni TMR-MJN 40mm Carburetor
Throttle Holder & Handle Grip
Carburetor Carbon Heat Shield
Original Oil Cooler
Magnesium Engine Cover
Magnesium Cylinder Head Cover
Oil Breather Tank
Clutch Spring
Original Generator Cover (Titanium Cover on Top)
Cylinder Head Porting
Cylinder Boring

Chassis Parts, Accessories & Chassis Modification
Frame Modified & Painted
Carbon Front Fender
Original Aluminium Lighten Fuel Tank
Original Triple Clamp (Serial Number Sealed)
Original Rear Sets
FFVS Front Fork Unit & Rear Suspension (Yoshimura Setting)
Speed Flow Brake Hose (Front & Rear)
Original Seat メJOYモ Special
Small Type Turn Signal
Front Brake Caliper & Light Weight Rear Brake Caliper
Disk Brake
Small & Light Weight Battery
Original Swing Arms
メMagtanモ Light Weight Wheel
RK 520 Chain
AFAM Sprocket
STUCK Racing Speed Meter & Yoshimura original Bracket
Speed Meter Sensor Bracket
MAGICAL Original Carbon Mirror
License Plate Holder
High-Grip Tires
Side Stand Modified

Electrical Parts     

Electrical Parts & Plate Modified
Original Wiring Harness
Digital Single Temperature Gauge


  • Marcel

    I always loved the Katana styling, iconic and way ahead of it’s time.

  • the_doctor

    “Original Seat メJOYモ Special”

    That is awesome. It actually has a real seat that a passenger can ride on. Amazing.

  • Dubito

    I know that there must have been a lot of paring back, and exotic components, but surely any bike that is capable of losing 96lbs and still being two-seat and road legal has a problem? Surely?

    I’ve ridden one Katana twice – my mechanic’s own bike that he loaned me a couple of times, and it was ratty, cracked, the fuel tap didn’t work properly, the choke was jerry-rigged, and it still felt as though it was cast in one piece, rather than welded and bolted together. A wonderful piece of engineering, but, maybe, a touch over-built.

  • Peter Lombardi


  • DoctorNine

    I guess I’m not getting it. I think a stock Yamaha FZ1 looks better. And it’s nothing compared to the Abarth FZ1.

    • Adrian

      Yup, because the FZ1 will always go down as an iconic design.

  • AadmanZ`

    That is still very close to being my all time favorite bike.. Had it as a wallpaper for ages. Makes you wonder why most manufacturers never build something like this.

  • Steve

    Original swingarm??? Nah, maybe as a starting point but not a final product

    • SJY

      Original being, one off, built from scratch, not OEM. You are confused my friend.

  • Anders

    Just incredible. The Katana is what you get when you ask a non-transporation design company (Target design, they did design other bikes as well) to design a bike. Something fresh thats still iconic.
    The Yoshimura treatment is even nicer than the original styling.

  • Adrian

    Gorgeous ,always one of my favoriter designs and those magnesium /unobtainium/whatever carbs look fantastic.

  • Marcel

    Some cool historical info on the Katana –

  • robotribe

    “It still looks better than nearly any bike that’s come out of a Japanese factory since.”
    Couldn’t agree more with that statement.

  • chris

    Where can I find a large image of this? Too cool, and great respect for the standard version.

    • Grant Ray

      Chris, I’m afraid these are as big as we can get until Yoshimura returns our request for more info.

  • Peter

    That´s kind of old news. I’ve got the bike as a wallpapper some years ago. I was amazed by it then.

    But it´s kind of funny seeing that MCN is running the story from you as a “top story” and “new bike”

    Keep up the good work :-)

    • Wes Siler

      Yeah, I’ve talked to MCN a bunch about behaving themselves and attributing all the content they rip off from us, but they don’t seem to get it.

      It’s actually kind of depressing to find out how low the standards of and how poorly run the magazines I grew up reading are.

  • fearnow

    I’m old enough to state that the original Katana was IMO the coolest bike design ever released to the public.

    I stand by that nostalgia, and it may even look better in black.

    Also, I just had a critical failure in my shorts.

  • Bubba

    Bought the original five years ago, but this gives new meaning to Kat heritage. While it’s fun to confuse the modern day rocketeers – with timeless design, this beast will certainly impress with speed. Ah, what a complete and beautiful master piece!