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Kawasaki Z750B by Street Tuff Customs

Posted on March 14, 2013 by Scott in Café Racer. 42 comments

Written by Ian Lee.

Isn’t it great when ideas just work together? Concepts that aren’t easily conceived, but when enacted turn out awesome? Like using a Mini SU carb on a Kawasaki engine, or using stainless dairy pipe for an exhaust system. Graham Braid of Street Tuff Customs is one man who likes using different ideas that work together, and the latest example of this is this tough looking Kawasaki Z750B street tracker. With three years of work, and a little help from some friends, Street Tuff Customs has produced one mean machine with customisation up the ying yang.

Looping the frame was the first task Street Tuff undertook, after which a ZZR swingarm was fitted in place of the stock Kawasaki unit. Mounted on the custom swingarm are 80s Marzocchi piggyback shocks, one of the retro touches on the bike. An Aprilia RSV has donated it’s front forks and OZ rims to the build, with custom machined yokes hold the front end together. The OZ rims are wrapped in Dunlop Mutant rubber at the front, and a Dunlop D616 at the rear.

Whilst the frame was being work on, the engine was stripped down and rebuilt, being given a coat of matt black paint on reassembly. Mounted off a custom 1 into two manifold, sits the SU carburettor from a Mini, breathing in through a K & N oval filter. The scrambler style exhaust system is all specific to this build, stainless steel dairy pipe ending in SuperTrapp shorty mufflers, the whole lot brush finished.

By Graham’s account the fuel tank was a ‘big job’. The original tank was chopped up, machined metal finned plates bonded to it, and moulded to blend in. Topping it off, Street Tuff has fitted an aircraft style filler cap. Taking inspiration from classic Norton racebikes, the tailpiece was formed from scratch using sheet metal. Hidden within it is the battery, rectifier and some electrical componentry.

Through using a mix of older and newer styling techniques, Street Tuff has produced a bike which shows their talents. Componentry offsets each other, the electronic speedo mounted on the flat track bars, offset against the leather diamond trim ‘bum pad’. The LED taillight offset against the 60s style tailpiece. The OZ rims versus the Scrambler style exhaust. It’s all goes against each other, but together it has produced a bike that stands out from the crowd. See what I mean about things just working together?

  • matiberio

    the look from the front reminds me of a cushman scooter…

    • Street Tuff 58

      Thanks for all the comments,at least I’ve evoked a response with the design!
      I didn’t want to go for the same old dual leather seat/fibreglass dirt track tailpiece route,and in fairness I wish the rear view photo that I sent,had been posted, as the design of the tailpiece flows better with the pipes etc,from the rear!
      Thanks again.

      • Not criticism, but why on earth did you put that bash plate on this “Street bike”?

        • StreetTuff58

          When the bike was finished,looked at the front of the engine and the down tubes of the frame,and it looked a bit naff,so just wanted to tidy that area up,and also with the tracker feel,wanted to jump the odd kerb,rip the odd trail on the bike,so seemed functional!

      • Danny Busch

        Getting people to even get an emotion one way or another is almost impossible these days, so if you’re able to get people to take the time to write a response, then that is a victory 🙂 When everyone follows the “Rules”, stuff gets boring, so I always pay attention to people going the opposite direction. I saw you catching lots of mess about them bars, but they aren’t that bad. They look like the bars that you would want when riding that bike the way you would want to ride it, I think. What blew me away was the tank, brilliant job on that one. Keep up the good work, man!

  • John in Pollock

    no lane splitting with those long horned handlebars….

  • Lewn

    Junkers JU-52?

  • revdub

    That finned tank is very cool.

    • taka-tz

      That backward petcock is very cool too.

    • Yep, love the tank also.

  • Paddy

    Half cafe racer-half street tracker. This thing doesn’t know what it wants to be. The workmanship is superb but the design leaves me cold.

    • Jacob Speis

      Just seeing this, but I wholeheartedly agree. I want to like it, I really do. The sheer quality of the work is amazing, however the proportions are just incredibly weird. The tank is a piece of art, but the massive body work on the seat and the huge, out of place bars draw your eye away from what I think should be the center of attention.

  • I dig it. These big Kawa twins are often overlooked by the custom crowd. This bike has a lot of technical details that may seem trivial to some but are very cool – the single carb solution is very interesting to me. Why multis have to have a carb for each cylinder with complicated linkages has baffled me for years. Rebuilding the rear frame and adding a zzr swing arm is another detail that took a lot of re-eingineering, planning and thought – not to mention skill, craftsmanship and physical labor, Props for the tank – it gives me a great idea for a current project. Not to everyone’s taste? What bike is. Oh, yeah, I like the wheels, too.

    • BTW, a pumper Keihin from a pre FI Sportster works very nicely as a carb for 2-1 modification – cheap and easy to tune.

  • Cory Hebert

    Paddy hit the nail on the head. Very nice quality, but seems to be heading in too many directions styliscticly.

  • itsmefool

    You sure that tailpiece doesn’t open up like speedbrakes on an airplane? If it did, then I’d really, really be impressed!

  • rennie61

    I really like the tank and I think the front half of the bike works better than the back (or maybe it’s just that they don’t go so well together. Props though for doing something original

  • Get rid of that ridiculous tail and it will be transformed from an ugly duckling into a beautiful swan. Well…almost.

  • sideroad

    Each component is great with top workmanship. but the whole design is confused and I don’t think it works. Headlight, bash plate, tail, tank, seat, pipes are all good but not on the same bike. Strong lines (eg tankfins, cyl fins, cover plate fins & frame) should be in alignment with each other.

  • Andrew Ramming

    Such great unique work. The handle bars Suck!!! they don’t fit the bike at all. the single gauge handle bar + top of the forks – all scream Harley.
    it’s an odd duck.

  • Love the tank

  • nathas909

    The work that has gone into this is huge, but it just does not work for me. Really strange combination of styles and parts. I appreciate it but would not want it…..
    Those bars and the rear seat are just way too big….

  • martyn phillips

    did you get your inspiration off a crank sat on the wall outside rampton loony bin?NICE TYRES THOUGH,Hmmmmmmmm!

  • Neal English

    I really dig the entire look of this bike. I feel like it’s really well put together, and incredible well thought out. The only thing that caught my eye as out of place is the spark plug cap. It’s the only real splash of color on the bike, and it seems little out of place. If it’s intentional, why draw the eye to that specific point of the bike? I’m not saying I dislike it, I’m simply more curious as to the reason. I feel like this was a deliberate decision and I’m curious about exactly why it was done.

    Aside from that, I absolutely love the scrambler type pipes that ride high along the frame. Offsetting each one is a really cool take, and the OCD part of my brain loves the symmetry.
    One last thought. With the forks being so big and hulking I might advise putting on a slightly larger headlight. The front end just seems a little out of place. Big tire, big forks, big brake rotor, and a tiny little headlight.
    I really wish I could see the tail. I’m curious about the light cluster on the back end.

  • paul tuttill

    wont be offering you a job at paul junior designs for that pile of!

    • StreetTuff58

      Thank God for that!

    • micky

      paul tuttill’s bikes all look the same anyway

  • ffjmoore

    Im not sure but that thing looks like it has negative trail. Looks like it would be a really twitchy handling bike. Wonder how it feels at speed. Its all been said before. Seat is boring and looks worn with the tank. Sport bike front end with a skid plate thing and scrambler pipes. Not sure… well.. of any of it.

  • HammerheadFistpunch

    I love it!

    Only thing I’d change if it were mine were maybe lose the bash plate & black out the exhaust.. Gives me some ideas for a project I’m working on. That tank reminds me of an aluminum-finned heat sink.

    I don’t understand all the hate & confusion over this – It’s just like a Kawi-flavored XR1200.

  • Marcus

    Excellent technique and great skills however the design doesn’t do it for me either. Mainly the rear end seems a little out of place in my opinion. Looks like a lot of fun to ride though!

  • Fantastic fabrication but aesthetically this is a big miss for me. If it were me (which it isn’t, but if it was,) I would at least put on a larger front wheel, larger headlight, and smaller bars.

  • Where can I find a gas cap like that?

  • bigspuds

    could have found a better way of wasting a couple of hundred quid

  • Dally

    This guy’s spent three years of his life building this bike. It is exceptional for a home builder. You are all sitting at home in front of your computers slagging it off. In the words of the immortal Thumper “If ya can’t say anythin nice don’t say anythin at all” I’m well impressed, there may be some things I’d change but that’s just my opinion and opinions are like arseholes……. Nice one Graham.

  • www

    Stupid bike with an identity crisis no flow and parts from anywhere/thing. Fail.

  • say whaaa

    my goodness. its like you had all these grea ideas and skills, but it all got lost in translation. is there an ugliest ripper award?

  • Erich Wacha

    it s hard to describe it has something “””special””” design,craftmansship , th lots … but i just don t like the handlebars

    • spike

      Well I recently bought the bike and have changed the handlebars to narrower Renthal Low Bars. Also added mirrors and a lighting switch. Left the rear hump as it now flows better with the narrower handlebars ( plus the battery and starter relay are in there ). Fitted rear alloy plate as mudguard and also fitted a legal number plate/led light/reflector etc. Many lovely parts on this bike.