While we wait patiently for any news of some rumored last-minute dark-horse entry to join the grid at the 2015 Isle of Man TT Zero, details on the front-runners are coming to the surface.  After a radio-silent unveiling this past weekend, Saroléa has finally released specs on its contender (via press release):

* Total Weight (kg) – 190

* Acceleration 0-100 kph (0-60 mph) – 2.8 sec * Maximum Speed (kph ) – 270 Tires: * Front – Bridgestone Racing Battlax V02 120/600R17 * Rear – Bridgestone Racing Battlax V02 200/655R17 Brakes: * Front – Beringer 320mm Aeronal discs with Aerotec Radial Calipers * Rear – Beringer Aerotec 2D1 caliper * Maximum Output (KW ) – 110 (Isle of Man configuration) * Maximum Torque (Nm) – 900

* Battery Output Voltage (V) – 370 or more

...while Mugen announced the "Shinden Yon"  (hint: means "moar power", more or less) with John McGuinness and Bruce Anstey again riding this year.

Shinden Yon IOM TT Zero with John McGuinness and Bruce Anstey (image: Mugen)

Shinden Yon IOM TT Zero with John McGuinness and Bruce Anstey (image: Mugen)

If you remember, McGuinness pulled a little over 117mph last year, breaking the track record for electrics.

The bikes are coming in at a 10% increase in power, with a 110-kW (147hp), 162.24 ft/lb motor and weighing in at 250-kg (551lb). No word on the pack, or whether it can deliver the power to match the motor, though with the slight weight increase we'd be guessing yes.

Read more about the Shinden bikes on Autoblog, here as well as on Asphalt and Rubber, here.

At this point, the contenders are weighing in spec-wise at just about how they placed last year.  Shinden placed 1st and 2nd, the Buckeye bike 3rd (a no-show this year), Sarolea in 4th and Vercar Moto checked in at 5th.  At a certain point, however, the IOM TT pits skills rather than specs...  we'll soon see if we've reached that point in electric race-bike performance.