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

