Introduction
The Ferrari 375 Series represents one of Ferrari’s most important early V12 platforms, used in both Formula 1 racing (375 F1) and road-going grand touring cars such as the 375 America.
With larger displacement engines and increased performance, the 375 models required wider tyres and stronger wheel setups compared to earlier Ferraris.
As a 1950s Ferrari, the 375 Series features wire wheels, cross-ply tyres, and bespoke hub systems, meaning modern tyre sizing and wheel standards do not directly apply.
At AUTOSPORT TYREWORLD Adelaide, we provide expert support for both modern performance vehicles and classic Ferrari restoration fitment, helping maintain authenticity while ensuring safe tyre solutions.
This guide covers:
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Historical tyre size references
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Early wheel specifications
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PCD and centre bore considerations
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Fastening systems and torque notes
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Modern tyre recommendations for restoration
Ferrari 375 Series Tyre Sizes (Historical)
The Ferrari 375 Series used cross-ply (bias-ply) tyres, designed for both racing and grand touring applications.
Common Period Sizes
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6.00 – 16
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6.50 – 16
(Racing variants such as 375 F1 may have used wider custom setups)
These tyres featured:
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Wider contact patch than earlier Ferrari models
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Tall sidewalls for stability and endurance
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Reinforced construction for V12 performance
Ferrari 375 Series Wheel Specifications
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Wheel Diameter: 16"
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Wheel Width: Approx. 5J – 6.5J
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Construction: Wire wheels (Borrani-style)
Wheel specifications varied depending on:
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Racing vs road (375 F1 vs 375 America)
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Coachbuilder and configuration
Bolt Pattern (PCD)
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Non-standard / bespoke hub system
Modern PCD formats (e.g. 5x114.3) do not apply.
Centre Bore
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Custom hub-centric design
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No standardised measurement
Wheel Fastening System
Ferrari 375 models typically used:
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Centre-lock knock-off hubs
Features:
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Central spinner
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Hammer-tightened
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Designed for racing pit stops
Torque Specification
Modern torque specifications do not apply.
Instead:
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Torque achieved via mechanical locking
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Proper seating is critical
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Requires specialist tools and experience
Tyre Requirements (Modern Classic Use)
For restored Ferrari 375 vehicles:
Key Requirements
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Period-correct appearance
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Safe modern rubber compounds
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Correct rolling diameter
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Suitable load rating for V12 vehicles
Recommended Tyres (Classic Ferrari Use)
Period-Correct Style
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Michelin Classic range
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Pirelli Collezione series
Benefits:
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Authentic vintage look
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Improved safety vs original tyres
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Better grip and durability
Important Notes for Owners
The Ferrari 375 Series is:
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A historically significant Ferrari platform
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Extremely rare and valuable
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Maintained under specialist restoration conditions
Tyre and wheel work should prioritise:
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Authenticity
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Preservation
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Safety
Why Proper Fitment Matters (Classic Ferrari)
Incorrect fitment can result in:
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Damage to rare components
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Poor handling characteristics
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Safety risks
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Reduced collector value
At AUTOSPORT TYREWORLD Adelaide, we can assist with:
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Classic tyre sourcing guidance
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Fitment recommendations
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Safe modern equivalents
Visit AUTOSPORT TYREWORLD Adelaide
Specialist tyre advice and fitment support available at:
Magill
647 Magill Road, Magill SA 5072
0452 641 023
Wingfield
411 Grand Junction Road, Wingfield SA 5013
0433 645 411
Clarence Gardens
911 South Road, Clarence Gardens SA 5039
0420 299 911