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Alnac 4G
Car TyresApollo

Alnac 4G

Recommended: Apollo Alnac 4G. High-precision tyre offering superior braking, highway tracking, and low rolling resistance. Fully compatible with BMW i5 (245/45 R19).

FITMENT SUMMARYBMW i5, Mercedes-Benz S-Class
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TECH SPECS & MANUFACTURING TOLERANCES

Detailed Parameters

Precision factory engineering parameters, carcass ply architecture, and certified load-speed performance ratings.

Geometry & Dimension Telemetry
FORM FACTOR: 245/45 R19 • 102Y
Rolling Diameter
703.1 mm
Circumf: 2209 mm
Revolutions / KM
~453
Odometer Calibration
MAX LOAD SPECIFICATION

Load Index Rating

102(850 kg / tyre)

Total 4-wheel gross load tolerance of 3,400 kg. Provides structural headroom for passengers and cargo.

CERTIFIED LOAD RESERVE850 KG SPEC
HIGH-SPEED CERTIFICATION

Speed Rating Symbol

Y(300 km/h)

Supercar & Track Grade Spec. Certified for sustained high-speed expressway travel without centrifugal belt delamination or carcass heat fatigue.

CERTIFIED VELOCITY300 km/h
CARCASS ARCHITECTURE

Radial (Tubeless Build)

Tubeless Radial

Multi-ply high tensile steel belt with high turn-up carcass ply

PLY: 6-PLY RATEDSTEEL BELTED RADIAL
OEM PRESSURE SPECIFICATION

Factory Cold Inflation Pressure

32 PSI / 30 PSI(Front / Rear)

Calibrated OEM cold tyre pressure for BMW i5. For full passenger/luggage payload, increase rear tyre to 33 PSI.

NITROGEN COMPATIBLE99.2% Nā‚‚ OPTIMAL
RUBBER FORMULATION

Tread Compound & Depth

7.8 mm(New Factory Tread)

Apollo High-Dispersion Silica with Asymmetric Dry-Wet Contact Zone. Built with integrated Tread Wear Indicators (TWI) calibrated at the 1.6mm legal limit.

UTQG WEAR INDEX: 380 A ATROPICALIZED
DEALER PROTECTION

Warranty & Genuine Origin

5 Years Manufacturer Warranty

100% Genuine authorized Amman Tyres stock. Certified with BIS / ISI Indian safety marks, manufactured at Apollo Tyres Oragadam (Chennai, TN) / Limda (Gujarat) Facilities.

ORIGIN: IndiaAUTHORIZED HUB
INNOVATIVE TECH

Tyre Engineering Features

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Asymmetric Sports Tread

Outer blocks focus on high-speed dry cornering while inner grooves drain water.

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Stiff Outer Shoulders

Reduces tread block distortion under hard braking, keeping the contact patch flat.

BENCHMARK STANDARDS

3 Reasons to Choose

Exceptional Wet Stop Distance

Exceptional Wet Stop Distance

Asymmetric sipes buffer aquaplaning, securing short safety braking bounds.

PERFORMANCE CHARACTERISTICS & PROVING GROUND LABS

Tyre Test Metrics

Empirical proving-ground telemetry covering ISO wet braking distance, acoustic cabin decibels, high-mileage compound longevity, and lateral road adhesion.

Laboratory & Proving Ground Test Suite • Apollo Alnac 4G
WET BRAKING (80-0 KM/H)GRADE A
29.4METERS

Stops 3.1m shorter than standard commuter baseline under monsoon downpour conditions.

DECELERATION SAFETY INDEX80% SCORE
ROLLING RESISTANCE (RRC)ARAI GRADE B
+4.6%FUEL SAVINGS

Rolling resistance of 7.8 kg/t. Apollo High-Dispersion Silica with Asymmetric Dry-Wet Contact Zone minimizes heat drag during highway cruising.

FUEL CONSERVATION BOOST+4.6% REAL-WORLD
PROJECTED TREAD LIFETOURING LIFE
68,000KM LIFE

High-performance radial featuring asymmetric grooves for sport handling and short wet stop bounds.

UTQG TREADWEAR INDEX380 A A
ACOUSTIC CABIN NOISEHIGHWAY GRADE
69.8dB PASS-BY

Variable groove pitch sequence reduces high-speed expressway drone.

CABIN SILENCE RATINGCERTIFIED (SUB-72dB)
DRY SLALOM & CORNERINGLATERAL STABLE
0.88PEAK G-FORCE

Stiff outer shoulder blocks maintain continuous contact footprint during swerves.

LATERAL ROAD ADHESION88% G-LIMIT
HYDROPLANING CLEARANCE3D WATER SIPES
88KM/H THRESHOLD

Evacuates up to 30 liters of water per second through Circumferential center sipes break surface tension in heavy standing water.

WATER CLEARANCE THRESHOLD88 KM/H SAFE
OFFICIAL FITMENT SPECIFICATIONS

Supported Dimensions

Verified OEM vehicle fitments, factory inflation pressures, and axle load ratings calibrated for daily driving safety.

Compatible Vehicle & TrimsRequired Tyre SizeLoad / Speed IndexFactory Cold Pressure (PSI)OEM Verification
BMW i5Trims: eDrive40Model Years: 2024245/45 R19102Y(850 kg / 300 km/h)32 PSI (Front) / 30 PSI (Rear)All Axles: Front / Rear (32 PSI Front / 30 PSI Rear)OEM VERIFIED
Mercedes-Benz S-ClassTrims: S 350d, S 450, S 450 4MATICModel Years: 2018 - 2024245/45 R19102Y(850 kg / 300 km/h)29 PSI (Front) / 32 PSI (Rear)High-Performance Motorcycle SpecOEM VERIFIED
FAQ SHEETS

Frequently Asked Questions

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