RF7 108mm Radial Brake Calipers vs Brembo GP4-RS Caliper
Buy the Brembo GP4-RS if you ride hard on track or want a proven monoblock caliper with MotoGP-derived cooling fins and sintered pads. Buy the RF7 if you want a forged, mirror-nickel 108mm radial caliper that bolts onto stock 300mm rotors and ships with pads and spacers for less money. The Brembo has a recorded price of $716.38 as of November 1, 2026; no price was given for the RF7, so compare its live store prices before deciding.
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RF7 108mm Radial Brake Calipers
Choose the RF7 108mm Radial Brake Calipers if you want a direct bolt-on 108mm radial caliper for 11.8"–13" rotors that includes pads, hardware and spacers for oversized rotors.
Pros
- Direct bolt-on for 108mm radial mounts and SuperGear radial fitments
- Works with 300–330mm rotors, with spacers included for 13" rotors
- Pads and hardware included in the box
- Forged body with a mirror nickel finish
Cons
- No finned cooling like the Brembo
- No published price or price history in this comparison
- Aluminum pistons without the Brembo's ribbed anti-deformation design
What separates them
| RF7 108mm Radial Brake Calipers | Brembo GP4-RS Caliper | |
|---|---|---|
| Construction | Forged aluminum alloy, CNC machined | Cast aluminum monoblock, machined from one piece |
| Cooling | No fins; plain body | MotoGP-derived fins around the pistons, about 30% more air-exposed surface |
| Pistons | Aluminum alloy pistons, 4-pot | 30mm aluminum pistons, 4-pot, ribbed to resist deformation |
| Included pads | High-performance pads included | Brembo sintered pads included; compatible with Racing Z04 |
| Rotor fitment | 11.8"–13" (300–330mm); spacers included for 13" rotors | 32–34mm disc height; sportbike 108mm radial mount |
| Mounting hardware | Necessary hardware and spacers in the box | Mounted pads and anti-vibration springs; no rotor spacers listed |
| Finish |
Price history
$798.00$716.38
- RF7 108mm Radial Brake Calipers: lowest $798.00 on Nov 2 at SuperGear Performance.
- Brembo GP4-RS Caliper: lowest $716.38 on Nov 1 at Amazon; $716.38 on Nov 2.
Prices at every store
RF7 108mm Radial Brake Calipers
- SuperGear PerformanceCheck price at SuperGear Performance
- SuperGear PerformanceCheck price at SuperGear Performance
Brembo GP4-RS Caliper
- AmazonCheck price at Amazon
- BobleisureCheck price at Bobleisure
- eBayCheck price at eBay
Specs compared
| Spec | RF7 108mm Radial Brake Calipers | Brembo GP4-RS Caliper |
|---|---|---|
| Material | Forged aluminum alloy | Aluminium |
| Finish | Mirror Nickel | — |
| Rotor compatibility | 11.8"–13" (300–330mm) | — |
| ABS compatibility | Compatible with ABS & non-ABS applications | — |
| Included hardware | High-performance brake pads and necessary hardw… | — |
| Pitch | — | 108mm |
| Piston diameter | — | 30mm (same diameter 4-pot) |
| Piston material | — | Aluminum |
| Body material | — | Aluminum alloy (Cast, monoblock) |
| Surface treatment | — |
What reviewers say
Brembo GP4-RS Caliper
Reviewers describe it as a genuine Brembo caliper with strong, precise braking, and several report good fitment and clearance on their bikes. Complaints are thin, mostly about one seller's slow chat replies.
Pros
- Genuine, verified-original Brembo caliper
- Strong braking performance
- Precise build quality
- Good fitment and clearance on listed bikes
Cons
- One seller's chat replies were slow
Reviews
Questions and answers
- Which is better for track days?
- The Brembo GP4-RS. Its monoblock body, finned cooling and sintered pads are built for repeated heavy braking. The RF7 is a forged radial caliper aimed at street and bolt-on upgrades.
- Will the RF7 fit my stock 300mm rotors?
- Yes. RF7 lists direct bolt-on fitment for OEM 300mm rotor kits and works with 11.8"–13" rotors, using the included spacers for 13" rotors.
- Is the Brembo worth the extra money?
- If you brake hard or ride track, yes: stiffer monoblock body, finned cooling and Brembo sintered pads. For street riding on a budget, the RF7 covers the same 108mm mount with pads and spacers included.
- Which caliper is lighter?
- Brembo says the GP4-RS is 10% lighter than its M4 One-Piece. RF7 does not publish a weight, so check the figure before assuming the forged body is lighter.
- Do both work with ABS?
- RF7 states compatibility with ABS and non-ABS applications. Brembo lists the GP4-RS for sportbikes with 108mm radial mounts; confirm ABS compatibility for your model before buying.
- Can I use my own pads in either?
- RF7 says it works with high-performance aftermarket pads. Brembo lists the GP4-RS as compatible with Brembo Racing Z04 pads for maximum performance.
