SR1 XXR

The first step on the Radical ladder

Power

188 bhp

Weight

510 kg

MotorPark Laptime

01:42.010

The perfect track weapon

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.

The SR1 is the first step on the Radical ladder, ideal for enthusiasts looking to take their circuit driving to the next level with a focused sports-racing car that has an excellent safety record.

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.

SR1 XXR Standard Equipment

Body

  • 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 light
  • Le Mans pre-preg carbon composite mirrors

Engine

  • RPE Generation 5 liquid-cooled, in-line four, DOHC, 16-valve, 1340cc
  • RPE Generation 5 dry sump and cooling system
  • RPE Generation 5 coil-on-plug ignition system
  • Electronic drive-by-wire throttle
  • Life Racing engine management system and data logging
  • Hi-flow racing exhaust system

Cockpit

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

Features

  • Radical four-pot calipers with 240mm x 25mm 30-vane ventilated discs, front and rear
  • Aluminium foam-filled 54-litre fuel tank
  • Full fire extinguisher system

Power Train

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

Suspension

  • Fully adjustable Nik-Link suspension system
  • Front and rear unequal-length top and bottom wishbones with fabricated uprights
  • Front and rear adjustable pushrods
  • Interchangeable roll bars
  • Intrax dampers

Wheels and Tyres

  • Radical cast aluminium racing wheels
  • 7" x 13" diameter front and 9" x 13" rears
  • Semi-slick and wet tyre options — Hankook recommended by Radical

Dimensions

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

SR1 XXR Options

  • Convenience Pack — engine oil pre-heater and fuel sampling/drain kit
  • Quiet track-day silencer
  • Loud racing exhaust
  • LED race lights upgrade
  • Enhanced Data Pack — SmartyCam video system with GPS and race logging, including brake pressure and steering sensors
  • Nik-Link roll bar set
  • Forward-facing stay head protectors
  • Composite halo head restraint
  • Passenger seatbelts and headrest
  • Driver and passenger seat inserts
  • FIA-certified fuel cell