The Kneeslider

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Hattar Motorsports Triumph Street Tracker

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Hattar Motorsports Triumph street-tracker
Hattar Motorsports Triumph street-tracker

Hattar Motorsports in San Rafael, CA built a Triumph street tracker from a Scrambler. Lots of hand formed bodywork, custom frame, custom pipes and the engine was worked over, … a lot. Starting at 450 pounds and 39 rear wheel horsepower they finished with 320 pounds and 100 rear wheel horsepower. Gorgeous bike but not cheap.

After all of the discussion on the Kawasaki W800 article about low horsepower and comparisons to the Triumph, it’s interesting to see that if horsepower is what you want, you can always get it, no matter what you start with.

Thanks for the tip Mike!

Link: Hattar Motorsports

Hattar Motorsports Triumph street-tracker
Hattar Motorsports Triumph street-tracker

Posted on Filed Under: Motorcycle Builders

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Comments

  1. I would love more information on just what “the engine was worked over” statement specifically refers to. (List of machine work and parts #s would be just fine, thank you!!!) That is a huge gain in HP!!

  2. That tank is awesome looking. The exhaust is pretty cool too. I really like the way the axle line is at the midpoint of a triangle if you connected the exhaust tips.

  5. That is a beautiful bike, IMHO.

    Quick Google search finds Triumph listing Scrambler weight as 506 and HP as 58, doesn’t spec rear wheel or crank for HP. I would be very impressed to see a dyno chart showing 100RWHP from that motor.

    My old ironhead XLCH enduro w/flattrack frame went 375 pounds, so I could maybe believe 320 for this bike. Even if it were 375 and 75 HP I would take it in a New York minute.

    • Gorgeous looking bike – seems like nothing is stock, including the engine. But to get real-world 100hp you’d need a compressor! I agree, 75 should do, with lots of torque.
      Why is it a street tracker if it doesn’t have any lights, signals or plate?

      todd, like your tongue-in-cheek humor!

    • I agree. At first glance I thought it was Mule’s work too. As for the motor, I know Bonneville Performance builds such motors. There is a lot of power to be had from these motors, it’s just not cheap.

      And I REALLY like that aluminum seat/tail!

  9. Nice, very nice. Not sure about those pipes but those could be changed. The tailpiece is really neat and the power’s just about right.

  10. For those of you traveling in the SF/Bay area, Hattar is a great destination to visit. A dealership that “get’s it.”

    • Hey BellaCorse: Bet this is a boon for you!! Snow is about 2 ft. deep here, but no worries! Been in the garage all afternoon getting the Bonneville ready for spring! Look for an order from me tomorrow!! Normally I would while away the afternoon verbally abusing todd, but I think I’ll chase some extra hp for this riding season instead.

  11. Sweet! 100 RWHP might be a bit of a high stress engine. I got 70 RWHP out of a Norton 750 with a cam, headwork, mikuni’s and trick pipe. But the engine really didn’t like that much HP (many blow head gaskets)

    • FYI “HigherRPM”, this is not even close to an old British bike of any manufacture. It has a 4-valve, chain driven overhead cam with shim and bucket adjustment head, decent ports and combustion chamber, counterbalanced and the crank and tranny could be used in an RV. The lower end is extremely robust to put it lightly. I’ve heard claims of as high as 118 HP at the wheel. They spin right up too! If you got 80 out of a Norton as Ron Wood did, you’d have a grenade on your hands. I’m not sure what the limit of potential HP is on these motors, but people are pushing to find out.

  12. Could use some more images. Can’t find any on their website.
    Seat looks a bit large. Maybe thats due to the angle of viewing.
    Sure is a beautiful piece of machinery

  14. I just finished shoveling a 4-foot drift from in front of my garage door after the Chicago blizzard, feeling every one of my 58 years — while my B50 resides under its cover. This is like a breath of Spring, and if it can really do 100 hp (I doubt it, but 70 would be more than enough) I’d love to take it for a 3-month test ride. The “aluminium” bodywork is truly art. The bike reflects all the best of the Trumpets that ruled the dirt tracks during the ’60s, without the negative aspects such as spitting the crankshaft out of the cases.

  15. Really, really nicely done. Keeping the front wheel down would be a very enjoyable problem on that.

  16. There are a few more photos here guys. I can post engine mods later so you can see how we got the power. Here is a link to a Thruxton we did with similar style as well as a video of it on the dyno. Some teaser videos before we unveiled them as well. Enjoy!

    http://www.facebook.com/album.php?aid=196396&id=62228149927
    http://www.facebook.com/album.php?aid=248474&id=62228149927
    http://www.facebook.com/album.php?aid=248448&id=62228149927
    http://www.facebook.com/video/video.php?v=1091880622809
    http://www.facebook.com/video/video.php?v=1057728809035
    http://www.facebook.com/video/video.php?v=1065391920608