





AP Racing BTCC Brake Rotors 368mm X 36mm XC3 Engineering UK
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AP Racing Ex-BTCC 368mm x 36mm Vented J-Hook Brake Rotors
Genuine AP Racing 368mm x 36mm vented J-hook brake rotors sourced directly from current British Touring Car Championship teams.
These are used ex-BTCC motorsport components designed for high-performance braking applications and are ideal as cost-effective replacement friction rings for compatible AP Racing and XC3 Engineering big brake kit setups.
The main advantage of using ex-BTCC rotors is replacement cost. Rather than purchasing equivalent new motorsport rotors, these used BTCC components provide access to genuine race-specification hardware at a fraction of the price.
Genuine Ex-BTCC AP Racing Rotors
These rotors come directly from current BTCC teams and have previously been used in competition.
All rotors are supplied as used items.
Before being offered for sale, each rotor is inspected for damage and checked to ensure it remains in usable condition.
As genuine motorsport components, signs of previous use, heat cycling and cosmetic wear should be expected.
Key Features
- Genuine AP Racing motorsport brake rotors
- Direct from current BTCC teams
- Ex-BTCC used components
- 368mm diameter
- 36mm thickness
- Vented rotor construction
- J-hook friction surface
- Suitable for compatible floating brake disc assemblies
- Inspected for damage before sale
- Cost-effective replacement for compatible BTCC-style big brake kits
- Ideal for track-day and motorsport applications
368mm x 36mm Motorsport Rotor
The large 368mm x 36mm dimensions provide substantial braking surface area and thermal capacity for demanding applications.
A larger rotor can help manage the heat generated during repeated high-load braking, making this specification particularly well suited to powerful track cars running high-grip tyres and motorsport brake pads.
The 36mm rotor thickness also provides substantial thermal mass compared with smaller road-focused brake discs.
Vented Construction
These AP Racing rotors use an internally vented design.
The ventilation channels help move air through the rotor as it rotates, assisting with heat management during repeated braking.
Effective thermal management is particularly important during track use where brake temperatures can rise rapidly across consecutive braking zones.
J-Hook Rotor Design
The rotors use AP Racing's distinctive J-hook friction surface.
The machined J-hook grooves help maintain consistent interaction between the brake pad and rotor surface while also assisting with the removal of surface debris and gases generated during high-temperature braking.
The design is widely associated with high-performance and motorsport braking applications.
Cost-Effective Replacement Rotors
One of the biggest advantages of these ex-BTCC rotors is replacement cost.
Motorsport brake consumables can become expensive, particularly on cars that see regular circuit use.
Using inspected ex-BTCC friction rings allows compatible big brake kit owners to replace worn rotors at a fraction of the cost of purchasing equivalent new motorsport components.
This can significantly reduce the ongoing running costs of a track-focused braking setup.
Used Motorsport Components
Please be aware that all rotors are used items.
They have previously seen competition use and will therefore show evidence of heat cycling and normal motorsport wear.
All rotors are inspected for damage before being offered for sale and are supplied only when considered to be in usable condition.
These should not be expected to arrive with the cosmetic appearance of a new brake rotor.
For track-focused customers, this trade-off allows genuine motorsport hardware to be purchased at a considerably lower cost.
Rotor Selection
We do not offer the option to select specific individual rotors.
The exact pair supplied will depend on the currently available BTCC stock.
However, all rotors are inspected for damage and checked for usable condition before dispatch.
Cosmetic condition and previous heat cycling may therefore vary between individual rotors.
Ideal for Track & Motorsport Applications
These AP Racing ex-BTCC rotors are particularly well suited to:
- Track-day cars
- Motorsport builds
- Time Attack cars
- Clubsport vehicles
- High-powered performance cars
- Cars running semi-slick or slick tyres
- Compatible AP Racing CP9660 brake setups
- XC3 Engineering BTCC Big Brake Kits
- Owners looking for cost-effective replacement friction rings
Compatible BTCC Big Brake Kits
These 368mm x 36mm rotors are used within compatible XC3 Engineering BTCC Big Brake Kit applications, including setups for BMW M cars.
BMW M F8X BTCC Big Brake Kits – Explore AP Racing CP9660 big brake kits for applicable BMW F80 M3, F82/F83 M4 and F87 M2 models.
BMW M E9X BTCC Big Brake Kits – Browse AP Racing CP9660 BTCC brake conversions for applicable BMW E9X and E92 M3 models.
Please always confirm rotor compatibility with your specific bell, bobbin and caliper setup before ordering.
Compatibility
These are motorsport replacement friction rings and should not be assumed to fit a vehicle simply because it currently uses a 368mm brake disc.
Compatibility depends on factors including:
- Rotor bell design
- Bobbin hardware
- Rotor mounting dimensions
- Caliper position
- Pad annulus
- Overall brake kit specification
If you're unsure whether these rotors are compatible with your current AP Racing or XC3 Engineering setup, please contact us before ordering.
Important Information
These rotors are:
- Genuine AP Racing components
- Sourced directly from current BTCC teams
- Previously used
- Inspected for damage
- Supplied in usable condition
- Not individually selectable
Signs of previous motorsport use are normal and should be expected.
What's Included?
Supplied as:
- 2x AP Racing ex-BTCC 368mm x 36mm vented J-hook brake rotors
Rotor bells, bobbins, calipers, pads and other brake kit components are not included unless specifically stated.
Explore More Performance Braking Parts
Looking to upgrade or maintain your braking system? Explore our range of motorsport and performance braking components.
Brakes – Browse big brake kits, brake discs, pads, braided lines and braking accessories.
XC3 Engineering – Explore XC3 Engineering BTCC brake conversions and replacement components.

