Blue Shock Race

Technology

Electric racing karts from Latvia. Blue Shock Race has been developing them since 2015 and they race in more than 40 countries. The power units are CE certified and run on CIK-FIA homologated racing chassis. The league is open to other brands and in-house powertrains too, see For teams.

Blue Shock Race BSR22 electric kart in blue and yellow livery on asphalt
BSR22 · Blue Shock Race
135km/htop speed
3–3.5s0–100 km/h acceleration
44hp33 kW output
119Nminstant torque
5.3kWh96 V Li-ion battery
2minbattery swap
120kgrace-ready weight
163km/hBSR record from 2023

Manufacturer data for the BSR X5.

Electric vs. petrol

What's different

The driving experience is comparable to Rotax. The main difference is maintenance.

Electric · BSRPetrol
Energy3 to 5× cheaper than fuel. Charging is free at BSR races.Fuel and oil for every practice and race.
EngineLess routine powertrain maintenance: no oil, carburettor or clutch.Regular rebuilds, pistons, clutch, carburettor.
Biggest costExpected battery life 3 to 5 years depending on cycles, power class and use.Engine rebuilds based on hours run.
TyresSlightly higher wear due to instant torque.Standard wear.
Noise and emissionsQuiet, with no exhaust fumes. Can race indoors and near towns.Noise and exhaust; indoors needs costly ventilation.
FairnessSame power for everyone, adjustable in steps.Power depends on tuning and engine condition.

Based on Blue Shock Race data.

The BSR system

Classes by age

Blue Shock Race has five power classes. The Slovak league starts in 2027 with X3 and X5; the others are part of the BSR system.

1.5kWAge 4–6 · up to 55 km/h

BSR X1

First laps, safely and with limited power.

6kWAge 7–10 · up to 90 km/h

BSR X2

First real races, same power for everyone.

15kWAge 11–13 · up to 110 km/h

BSR X3

Junior class. Slovak and European League.

27kWAge 14+ · up to 125 km/h

BSR X4

Senior class, 37 hp.

33kWAge 14+ · up to 135 km/h

BSR X5

Top class of the European League, 44 hp.

Buying a kart or a power unit for your own chassis

BSR karts, power units and service are on emotokary.sk (in Slovak).

emotokary.sk →