SR10 XXR

Pure extreme performance.

Power

425 bhp

Weight

725 kg

MotorPark Laptime

01:34.320

Pure extreme performance. The top-of-the-range Radical with extra grunt from a turbo-charged engine.

Ideal for track-day enthusiasts, motorsport country club members, and racers across the globe, the SR10 delivers more power and torque than has ever before featured in Radical’s SR line-up. With a high horsepower, long-life powertrain, the Radical SR10 is everything you’d expect from a Radical – turbocharged.

The SR10’s sole purpose is to out-run and out-manoeuvre the competition whilst remaining easy to drive and cost-effective to run. Radical Performance Engines (RPE) cutting-edge engine tuning capabilities and Ford’s EcoBoost's reliable engine architecture come together to unleash a powerful race engine with 425bhp and 380lb-ft of torque. A bespoke Garrett G-Series turbocharger delivers better throttle response and reduced lag, with forged pistons and connecting rods and a bespoke dry-sump lubrication system for bulletproof durability. This high-output engine is integrated with a new Hewland GT3-derived six-speed gearbox.

SR10 XXR Standard Equipment

Body

  • Lightweight spaceframe chassis with FIA-specification safety cell and crash structure
  • LMP-inspired, high-downforce composite bodywork
  • XXR-generation LED race lighting including FIA high-intensity central rain light
  • Bi-plane high-downforce rear wing and diffuser
  • XXR-generation rear wing endplates
  • Le Mans pre-preg carbon composite mirrors

Engine

  • RPE-Ford 2261cc turbocharged engine — 425bhp and 380lb-ft
  • Direct injection, twin-independent variable cam timing and drive-by-wire throttle
  • Custom Garrett G-Series turbocharger
  • Forged motorsport pistons and connecting rods with bespoke dry-sump system
  • Latest Life Racing ECU with detailed interrogation function for maintenance and analysis
  • Hi-flow racing exhaust system

Power Train

  • Six-speed Hewland sequential transaxle
  • Radical-developed paddle-activated gearshift system with auto-blipper
  • Automatic torque-biasing limited-slip differential
  • 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
  • Lightweight cast aluminium uprights for improved durability
  • Interchangeable roll bars
  • Intrax triple-adjustable dampers with Anti-Roll Control technology

Cockpit

  • Two-seater chassis with twin or single-seat options, optimised for a moulded race seat insert
  • AiM Formula wheel with integral LCD display, lightweight shift paddles and on-wheel switching
  • LCD rev counter, gear indicator, shift light and engine/gearbox strategy manettino controls
  • Built-in SmartyCam video system with GPS, brake pressure and steering logging sensors
  • Pre-preg carbon-fibre dashboard with waterproof backlit touchpad
  • Dash-mounted brake bias adjuster
  • Wind deflector

Features

  • Radical four-pot calipers with 315mm x 35mm fully-floating 48-vane discs, front and rear
  • Front and rear brake cooling
  • Solid-state Power Distribution Module with CAN-linked wiring and telemetry
  • Data integration for tyre pressure and temperature monitoring and laser ride height logging
  • FIA-specification foam-filled 77-litre (20 US gallons) fuel cell
  • Full electronic fire extinguisher system
  • Lithium-Ion battery with trickle-charger

Wheels and Tyres

  • Radical XXR design centre-lock cast aluminium racing wheels
  • 8" x 15" diameter front and 10.5" x 16" rears
  • Slick and wet tyre options — Hankook recommended by Radical

Dimensions

  • Length: 4077mm
  • Width: 1799mm
  • Height: 1093mm
  • Weight: 725kg

SR10 XXR Options

  • Billet upright upgrade
  • Additional silencer
  • Pre-preg carbon-fibre double front dive planes
  • Carbon-fibre front splitter and rear diffuser
  • Air jack system
  • Advanced dynamic laser ride height logging, front and rear
  • Tyre pressure and temperature monitoring system
  • Suspension logging sensors
  • Dry-break refuelling system
  • Electronic Power Assisted Steering (EPAS)
  • Nik-Link roll bar set
  • Forward-facing stay head protectors
  • Composite halo head restraint
  • Halo-inspired Cockpit Safety Structure
  • Driver and passenger seat inserts