Description:

Used Brake pads to suit CP9660 Calipers

To fit CP9660-2 & CP9660-3 calipers

These pads are offered as a set of 4 pads that have been used as a set, they are 16mm+ thick.

Discount for multi set purchases.

Compound is ST45, a sintered endurance-type racing compound with these key traits:

• Medium–high friction
• Very flat torque curve (consistent pedal)
• Excellent wear (pads + discs)
• Strong at high temperatures
• Designed for heavy race cars (touring cars, GT, endurance)

Typical uses: BTCC, TCR, GT4, endurance racing, long sprint races.

Closest Equivalent Compounds (by brand)

Pagid RSL29

• RSL1 → slightly more bite than ST45
• RSL19 → slightly lower friction, more endurance-biased

Best Pagid match: RSL29

Ferodo DS1.11

• Nearly identical friction level
• Strong temperature stability
• Excellent modulation
• Commonly used where ST45 is no longer available

Other Ferodo options:

• DS3.12 → more aggressive, more bite
• DSUNO → closer to sprint/qualifying

Best Ferodo match: DS1.11

Performance Friction (PFC)

 PFC 08 or PFC 11

• PFC 08 → closest in feel and durability
• PFC 11 → slightly higher torque, more aggressive

PFC pads tend to feel:

• Firmer initial bite
• Slightly higher disc wear than ST45
•  
• Best PFC match: PFC 08

Endless

 Endless ME20

• Very linear torque curve
• Excellent heat resistance
• Similar pedal feel to ST45
• Often used in Japanese touring cars & GT

Other Endless options:

• MX72 Plus → too mild
• ME22 → more aggressive than ST45

Best Endless match: ME20

Discount for multi set purchases.

Website:

https://www.motorsportauctions.com/category/49/suspension-and-brakes/listings/79179/brake-pads-to-suit-ap-9660-calipers.html