
CP6840 - 4 Piston Radi-CAL WRC Caliper - Forged
Applications:
- WRC Turbo
- S2000 Tarmac / Gravel Specifications
- Manufactured to meet FIA R4T & R5 cost cap
- Ford Fiesta R5 MKI EVO
- RandR MK2 Escort Ultimate Brake Kit
Features:
- Radial mount, 180 x 42mm centres
- Forged monobloc Aluminium alloy body
- Suits Ø355 or Ø300 x 32mm iron discs
- Benefits from radical asymmetric design concept for superior dynamic performance
- Ducted air cooling features, reduces caliper temperatures
- Monobloc aluminium alloy body
- Internally Ported
- No external bridge pipe
- Available with either a "Push In" or an "M10 x 1.0 Threaded" Inlet
- Stainless steel pistons
- High temperature, low drag seals fitted as standard
- Manufactured with bleedscrew and pipe protection
Part Numbers:
-
Calipers with "Push-In" inlet
- RHL = CP6840-4S4L
- LHL = CP6840-5S4L
-
Calipers with "M10 x 1.0 Threaded" inlet
- RHL = CP6840-6S4L
-
LHL = CP6840-7S4L
Technical Specifications:
| Piston Sizes |
Ø34.9mm x2 Ø41.3mm x2 |
| Piston Area | 45.9 cm² |
| Disc Diameter |
Max - Ø355.0mm Min - Ø300.0mm |
| Disc Thickness | 32.0mm |
| Weight (no pads) | 2.16 Kg |
| Hydraulic Threads | M10 x 1.0 |
| Mounting Type | Radial |
| Mounting Centres | 180.00mm |
| Mounting Offset | 42.00mm |
| Mounting Hole | Ø10.175mm |
| 'PL' Dimension | 57.50mm |
| Bleed Screw Tightening Torque | 17Nm |
| Dry Break Tightening Torque | 13Nm |
Spare Parts
|
Pistons |
Ø34.9mm - CP6820-106 Ø41.3mm - CP6820-107 |
| Seal Repair Kit | CP8518-GK |
| Wear Plates |
CP6830-102 x4 |
| Wear Plate Bolts | CP3215-115 x4 |
| Beam Wear Plate | CP6820-109 x1 |
| Beam Wear Plate Bolts | CP3355-114 x2 |
| Anti-Knockback Springs | CP6518-4LBLL |
| Bleed Screw | CP3880-1 |
| Bleed Screw Cap | CP2494-177 |
| Brake Cooling Duct | Coming Soon! |
Brake Pads
Gravel:
| Pad Shape |
CP6820D46![]() |
| Pad Area | 61.7cm² |
| Pad Depth | 46.0mm |
| Thickness | 16.0mm |
Tarmac:
| Pad Shape |
CP6820D48 |
| Pad Area | 63.2cm² |
| Pad Depth | 48.0mm |
| Thickness | 16.0mm |
Applications:
| Make | Model | Year |
|---|---|---|
| Ford | Fiesta | R5 |
| Brand | AP Racing | |
|---|---|---|
| Option | SKU | Barcode |
| Ø34.9mm x2 | Ø41.3mm x2 / M10 x 1.00 / Right Hand | CP6840-6S4L | |
| Ø34.9mm x2 | Ø41.3mm x2 / M10 x 1.00 / Left Hand | CP6840-7S4L | |
| Brand | Part Number |
|---|---|
| M-Sport | BV18110011A |
| M-Sport | BV18110012A |

