Mugen’s third purpose-built electric superbike for the Isle of Man TT, the Mugen Shinden San, has been revealed in Japan. Campaigning two machines for this year’s TT Zero race, Mugen has John McGuiness and Bruce Anstey at the helm of its “Shinden San” bikes, as the duo looks for a one-two finish in this year’s race.

With MotoCzysz not racing at the Isle of Man this year, Mugen is a hot favorite to take the top podium spots, as well as crack the 110 mph barrier for electrics on the historic Snaefell Mountain Course (Mugen is targeting a 115 mph lap).

An evolution on the company’s previous designs, the Shinden San fits 134hp — 10hp more than last year, thanks to a new smaller three-phase brushless motor provided by Mission Motors — into its 529lbs bulk.

Mugen is tight-lipped on how much energy is on-board (other than battery capacity has been increased for 2014), but the company has noticeably retained its carbon fiber chassis design, which retains the same dimensions from last year’s bike, the Shinden Ni.

Mugen has however changed the bodywork, making more streamlined fairings of McGuinness and Anstey. That coupled with the Shinden San’s extra top-end power, should make for a noticeable improvement come race day.


Technical Specifications of the Mugen Shinden San:

  • Length / Width / Height: 2,125mm /680mm / 1,130mm
  • Wheelbase: 1,485mm
  • Ground Clearance: 130mm
  • Seat Height: 840mm
  • Curb Weight: 240kg / 529lbs
  • Tire (Front): 120/70ZR17M/C(58W)
  • Tire (Rear): 200/55ZR17M/C(78W)
  • Frame: CFRP Twin-Spar-Type
  • Motor Type: Three Phase Brushless DC motors
  • Horsepower: 100kW / 134hp
  • Torque: 220Nm / 162 lbs•ft
  • Battery Specification: Laminate-type Lithium-ion
  • Battery Output: 370V or more

Source: Mugen

  • that guy

    Mugen: Sponsored by Maxell, Dunlop, and…fisting?

  • paulus

    … hmm. interesting livery.
    What happened to motoczyz? is Electric motorcycle racing already losing participants?

  • Michael Czysz is currently battling cancer. That’s taking priority over anything else MotoCzysz related.

  • crshnbrn

    Hopefully Mr. Czysz can add winning the fight against cancer to his list of accomplishments.

  • paulus

    Sincere best wishes to Mr Czysz and his family in this difficult time.
    Sad news…

  • Michael Schultz

    500 plus pounds? And that’s supposed to be evolution? Lol. No thanks. I’ll race a
    Goldwing next instead. Cheaper and lighter

  • sideswipe

    Looks like it has a radiator & vents to draw air through. I suppose those electric motors get hot enough to need liquid cooling.

  • Richard Gozinya


    It’s likely not just the motor, but the battery pack as well. Batteries being worked that hard need some pretty good temperature management.

  • Westward

    New smaller three-phase brushless motor is nice, but is it more efficient too, and if so, did they add more battery? Is the new motor lighter, or just less cumbersome?

  • cam

    Westward says:
    New smaller three-phase brushless motor is nice, but is it more efficient too, and if so, did they add more battery? Is the new motor lighter, or just less cumbersome?

    Less batteries (weight) is the key here so increased motor efficiency is probably at the top of the list of needs. The batteries only need enough storage to last race distance, ultimately power is restricted by a max system voltage of 500v according to regs.

    Still, it makes over 1.5 times the torque of the Panigale 1198 engine…

  • Djoni

    A tree phases brushless DC motor?
    What’s that.
    Any tree phase motor is basicly bruhsless and absolutely not DC. The altenating current drive the squirrel cage rotor at any speed the inverter is able to switch frequency at it, 120 degree differential per phase.
    Ain’t that or what?

  • TwoWheelLoo

    134 HP sounds ok until you hit the weight…. 500+ lbs huh? Not a real good power/weight ratio.

  • frankie

    I was wondering what happenes if you crash an electric bike………I think it wil be worse than a mineral oil powered bike because batteries are more likely to explode don”T ya think so???? And as an result a shower of battery acid…….thAT”S D angerous!