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SR1 XXR - The first step on the Radical ladder.

The First Step on the Radical Ladder; the SR1 XXR is the perfect track weapon for rookie and novice drivers embarking on their motorsport journey.

Although entry level, the SR1 offers an outstanding package with unparalleled performance for money, that will get you on the grid in a professionally administered race series.

The SR1 XXR has been substantially revised with a new design, increased aerodynamics and improved durability with RPE's new Generation 5 1340cc racing spec engine.

Drivers of all ages and backgrounds have taken advantage of the detailed on-track tuition and support offered by Radical with the SR1 since the launch in 2012.

Such has been the rapid growth of this first step on to the Radical racing ladder, the SR1 was substantially revised in 2017 with dramatic new styling, improved aerodynamics and updated electronics, and again in 2023 with the XXR generation reinforcing that you can’t go faster and have more fun for less.




  • Lightweight spaceframe chassis with FIA-specification safety cell and crash structure
  • LMP-inspired, high-downforce composite bodywork
  • LED race lighting including FIA high-intensity central rain lightXX-generation Le Mans pre-preg carbon composite mirrors


  • Gen 5 RPE liquid cooled, in-line four, DOHC, 16 Valve, 1340cc Electronic Drive-By-Wire
  • Gen 5 RPE dry sump and cooling system
  • Gen 5 RPE coil-on-plug ignition system
  • Electronic Drive-By-Wire
  • Life Racing engine management system and data logging
  • Hi-flow racing exhaust system


  • Two-seater chassis with twin or single-seat options, optimised for use with a moulded race seat insert
  • AIM MXS display unit with LED rev counter, gear indicator, shift light and data logging capability
  • Dash-mounted brake bias adjuster
  • Quick release steering wheel
  • Wind deflector


  • Radical four-pot calipers. 240mm dia. × 25mm, 30-vane ventilated discs front and rear
  • Aluminium, foam filled 54L fuel tank
  • Full fire extinguisher system


  • Six-speed, integral sequential gearbox
  • Radical developed paddle-activated gearshift system with auto-blipper
  • Chain final drive and limited-slip differential, reversing gear system
  • Mid-engined, rear-wheel-drive


  • Fully adjustable Nik-link suspension system, front and rear unequal length top and bottom wishbones, fabricated uprights, front and rear adjustable pushrods
  • Interchangeable roll bars
  • Intrax dampers


  • Radical cast aluminium wheels
  • 7" × 13" diameter front and 9" × 13" rears
  • Semi-slick & wet tyre options, Radical recommends Hankook


  • Length: 3860mm
  • Width: 1560mm
  • Height: 1020mm
  • Weight: 510kg


  • Convenience Pack (Engine oil preheater and fuel sampling/drain kit)
  • Quiet track day silencer
  • Loud exhaust LED race lights
  • Dash mounted brake bias adjuster
  • Enhanced Data Pack (SmartyCam video system with GPS and race logging, including brake pressure and steering sensors)
  • FiA certificated fuel cell
  • Nik-Link rollbar set
  • Forward-facing stay head protectors
  • Composite halo head restraint
  • Passenger seat belts and headrest
  • Driver & passenger seat inserts

For further information or bookings call +41 (0)76 425 5445 (Switzerland) or +33 (0)3 85 74 49 70 (France)

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