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Harley-Davidson Street 750 – The Kustom Kommune


Posted on January 19, 2015 by Scott in Tracker. 34 comments

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Words by Martin Hodgson.

When you’re thrown the keys of a brand new Harley-Davidson Street 750 and asked to build the first custom example in Australia the pressure to deliver is on. But with the first “small” capacity HD in a generation up on the bench the team at The Kustom Kommune have knocked this one out of the park and delivered a perfect homage to the mighty XR750 tracker legend.

The brainchild of Kommune Racer Jimmy Goode the Street 750 is a perfect example of just how to make a new bike look old again while still maintaining all of the 21st century improvements, it’s no easy task. Need some extra pressure? There was just five weeks to build the bike and the Kommune boys had yet to even lay their eyes on a Street 750, but working between 8pm-2am three nights a week they brought this one home first past the post.

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The first thing to hit you upside the head is the engine turned tins that immediately give the bike some real dirt track cred. The tank is made by VM Production team in Japan, while the replica XR750 seat made by Red Max Speed Shop in the UK was narrowed by KK before being mounted to a new custom subframe. The race plate is in fact a heavily modified tracker seat that now houses all the electrics for an ultra-clean, stripped down, race bike feel. The tuck and roll saddle is the work of Mile Style, while the incredible artwork is done by the brilliant Karl Stehn of KDS Designs.

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The KK crew never built this bike to be a static display; it’s built for the dirt and will be raced hard so taking care of the handling was a high priority. The front end is from a Yamaha R6, with the standard Street stem pressed into the R6 trees and requiring an in-house machined spacer to fit. The top tree was then machined to allow for risers to hold the obligatory tracker bars. The rims are XR1000 front wheels fitted to both ends of the bike, but you can’t just bolt old Harley wheels to a modern Yamaha USD setup. The front axle is machined to fit the XR wheels, while KK’s own aluminium spacers allow for the twin disc front. Further fettling then allows for the HD discs to work in unison with the R6 calipers, leaving a front end with perfect form and function.

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If the front end is impressive the rear requires more than a double take to appreciate the workmanship that was employed in such a short period of time. Harking back to another classic of days gone by is the twin shock cantilever suspension that dare I say it is even better than that once sported by the iconic Vincent Black Shadow. Utilising the standard Street swingarm the KK crew then fabricated the full cantilever setup that allows for twin Burley Slammer shocks to swing from the frame. Not only is it an impressive piece of engineering it also narrows the bike in true tracker fashion and balances the proportions of the slim rear rim.

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You can’t build a dirt racer and then fit a set of street tires so bolted on are Shinko Trail Pro 110/80/19 tires front and back. Taking weight out of the bike was further helped by stripping the entire loom and removing all lights and unused sensor. While an external high flow fuel pump is neatly mounted in tail section. Cracking the throttle is a 1/4 turn setup and the bark comes from a custom rear pipe that hangs off the factory street headers.

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With the bike completed in time for its first showing at the end of 2014, Kustom Kommune now have their eyes set on taking the first custom Street 750 to the track to show just what the standard Harley-Davidson Revolution XTM V-Twin Engine can do. With a wildly talented in house crew pulling off an incredible build for one of motorcycling’s most iconic brands, 2015 means the pressure is off and the throttle can be held wide open, it’s time for KR750 to let the dust fly!

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[Photography by Jason Lau]








  • Hien Nguyen

    really is magic…awesome work guys

  • Alistair Hardy

    One day I’ll have the money time garage to build something like this.

  • Zundap

    Very nice street tracker. Does it go as well as it looks? ..Z

  • arnold

    That open circle in the frame, behind the rear jug and under the shocks has me puzzled. I’m sure it is rational.

    Engine turning looks fair . Good fit for a show bike , but personally I could live with out it.

    Yes I’d like to take it for a demo ride. Maybe you’d get it back.

    • Matt1050

      Open circle in the frame is part of the stock Street 750 frame. You’d have to pose that question to HD. However I’d guess its some sort of torque reaction tube to help resist frame twisting.

      • arnold

        I”ll go down to the corner and maybe- see one in person. Thanks for responding, the best part of the conversation, response from the builders.

  • Jeffrey Wallis Bell-Zekas

    now, if only the Harley factory would build this bike…

    • Spyker May

      Ducati (aka Audi) will instead…

    • Kuiper Max

      They did.

  • T Prior

    that rear suspension is nasty !! (not the good type of nasty)

  • bjax

    Really nice work. It also shows how much you have to do to a new H-D to make it look okay. This actually looks ready for limited edition mass market AND (are you listening, H-D?) conjures some actual glorious Harley heritage.

  • Spyker May

    As a styling exercise – it is an effort of note. Kustom Kommune performed similar aesthetic magic with a Sportster 48 – that remains perhaps one of the best cosmetic-surgery efforts on a Sporster in the known universe. This is the best looking XG I have seen to date. However beyond aesthetics is where the glitter begins to fade – fast…

    The XG750 and XG500 are things I struggle to understand. HD aims at a price sensitive sector of the market. So imagine a prospect with (around) US$7500 burning his/her pocket (already a rarity in the segment – ie in cash or credit) and zero nostalgic DNA of any measure (ie basically all of them). Then there are a plethora of Japanese offerings that will pulverise the TEEN-GLIDE on every measure (including looks).

    The XG’s in std guise look horrendous (even worse in the flesh – often a model is not photogenic and looks better in real time – not the XG!). So you HAVE to customise it. Then an extra $1000 is nothing. This kicks it into the Italian corner, eg the Ducati Scrambler and frankly, here the Teen-Glide will have its short-and-curlies trimmed down to the chicken-bones.

    Moving from the choice of donor bike to the build.

    The flimsy single tube support to hold the entire seat section (unless my eyes are deceiving me), at an angle that will have you fail Structures-101 three times over, will not make it in any roughed-up venture – as hinted by the “lusty” message it carries. It will probably not even carry a 250lb beer-guzzling pillock crossing ‘street kerbs’ at speed, without buckling – with the protagonist facing the possibility of a mortifying impalement that will certainly terminate his consumption habits, for a while…

    • I predict maybe a two year run for these models or a major restyle to save them. Too expensive, ugly, slow, heavy and certainly totally void of a target demographic. Enjoy them, (yeah, right), while you can. If HD can get yet another 25-30 HP at the wheel out them over the 75 they’ve currently extracted, maybe they’ll be able to keep up with the slower 650 Kawasakis on the dirttracks!

    • D-ridz

      Mate, you must be a peanut. Put the thesaurus away and open your eyes, the seat is a structural member the post is a support. I’m tipping like most ‘engineered things’ they built it, then tested it.

      • Kuiper Max

        I doubt they “tested” anything. This effort isn’t engineering, it’s fashion.

    • Matt1050

      Your comments suggest you haven’t actually seen the bike, nor the subframe that was built under the rear cowl. And for the record I passed all four years of Statics and Dynamics at university. I’m pretty happy it’ll work.
      However I do promise to refrain from posting uninformed comments on any of your own Pipeburn-featured bikes. Have a nice day.

      • Spyker May

        Before I dump the thesaurus I will let you look up “triangle” – perhaps it is an Aussie thing (seeing we are into playing ‘the man not the ball’), but where I am, the gravity vector is perpendicular to the spirit-level – down as in the minus y-axis. Unfortunately you will need more than my thesaurus to figure the full IMPACT of that one – as the most you will find under “G’s” is perhaps the “g-string” (evidently your inspiration in this instance). “Passing” down-under (even for years in a row) obviously have a lot more to do with balls than b…r…a…i…n…s.

        Not sure where, or when, your uni days were; likely some remote Japanese island in the 1970’s; when they were using rivets to “weld” frames (and called it engineering).

        Dude, mate, or whatever, yours is a pretty thing, but she ain’t good. Look up the site of a master in this field – MULE. While we love to tease him (out of respect) – his craft should be your inspiration (note the structural detail on his frames, swingarms, etc). As for commenting on the builds of others – be careful what you wish for…

        But before things wind DOWN to a sheep-sh1t-slinging-contest (perhaps your national sport), may I humbly conclude that while your brand of ‘opinion-engineering’ certainly do not lack confidence, it is frighteningly THIN on maturity.

        • Matt1050

          Um yeah….I’m going back to the workshop to work on bikes. Later….

          • Spyker May

            Matt,

            I have a better suggestion – relax for 10min first; have a “VB”, heck have three. On my 1st trip to Aus, somebody suggested we should “do VB” – whaaaaaat !?! Where I come from “VB” is Victoria Beckham…

            I actually regret the ‘hard-assed’ stance above (not mature either). We are on the same side. Ride around (eg) the US west coast and experience the way “bikers” are profiled by the police and suddenly you realize we have far greater issues to contend with than the bikes’s frame, swing-arm, etc.

          • Kuiper Max

            A pertinent suggestion would be for you doing further study before butchering another bike chassis. ‘Engineers’ who respond to criticism with spite and snarl usually have plenty to hide, mostly ignorance, and stance in tatts and pants.

          • Matt1050

            Great idea. Thanks.

        • D-ridz

          As it happens I never went to uni, but that doesn’t stop me working as part of a mainly Aussie team led by a fella called Jeremy Burgess…..

          • Matt1050

            Awesome mate, I tip my hat to you, he is a legend

          • Kuiper Max

            JB just follows orders from Japan., and reads the workshop manuals and does exactly what is printed in them.He always has and always will. He’s lucky, more than gifted. In fact his plodding methods entirely devoid of creativity or genius, are his greatest strength.

            JB never took faulty NSR500 cranks to Shinto priests to have them ‘blessed’.

  • Jimmy G

    Matt from Krank Engineering was a huge help with this build! Majority of the fab work was carried out in his studio. Thanks Matty!

    • Matt1050

      Thanks Jimmy!!

  • D-ridz

    Another good showpony, is anyone actually going to ride it….sideways?

    • Jimmy G

      Yup! No doubt you’ll see some videos of me crashing it very shortly 😉

      • Neville Smithy

        We live in YouTube ogling hope.

  • J23

    Really nice but miss some cafe racer details..

  • Neville Smithy

    The cheap and poorly triagulated rear end is truly sub-par in terms of motorcycle chassis engineering. Its putting a dress on a pig and going to the Grand National .It will never steer or slide anything like a flat tracker with the raked out cruiser forks.

  • Lemmy

    Not exactly my speed still, but it certainly is an improvement over the factory-issued machine. With all due respect, that cat in the last photo must be itty-bitty. The Street is a positively diminutive motorcycle, and he looks normal-size against it!

    • Jdawg.

      That cat is 6’1. The bike has been substantially beefed up 😉

  • battler britton

    At least, a Harley I could by…. quite ready!