Brembo HPK GP4-RS 108 mm

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  • Brand: Brembo
  • Pistons QTY: 4
  • Spend AU $729,- and we pay for shipping!
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The Brembo GP4-RS is the equivalent of the famous M50 calipers, but the GP4-RS were designed to fit Japanese brand bikes. With the GP4-RS you're getting a pair of cast aluminium monoblock calipers designed for track day riders and high-performance street superbikes. The Brembo engineers have focussed on keeping the weight down to keep the unsprung weight to a minimum. By using highly efficient, smaller pistons and shaving away as much material as possible without compromising rigidity, the GP4-RS calipers are 15% lighter than their M4 counter part.

Please note: The Brembo GP4-RS calipers were designed to work best together with a Brembo 17 RCS brake master cylinder. These brake calipers come in one size: 108 mm. As a rule of thumb, 108 mm should fit all Japanese brand bikes with radial calipers where as most European brand bikes need 100 mm calipers. But to make sure, always check the center-to-center measurements of the fixing points on your own bike! You might also need a Brembo Caliper Spacer Kit to ensure the caliper lines up correctly. This usually happens if you're running larger diameter disc brakes but some bikes need the spacers in any case. Please refer to this document to see if and which spacer kit you need: Brembo Brake Caliper Spacer Kit chart

These brake calipers come with a pair of sintered Brembo brake pads included!

Please note that these Brembo Brake Calipers are meant to be used with 2 separate brake lines, one to each caliper. Please also check if the angle of the fittings of your current brake lines will match these brake calipers. If they are angled too differently, you may need to invest in a new set of brake lines to match.

additional information
Brand Brembo
Is on Sale No
Black Friday No
Riding Style Race/Sport
Caliper series GP4-RS
Piston Diameter 30mm
Pistons QTY 4
Center to Center 108
Monoblock Yes
size guide
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What exactly is a monoblock caliper?

A monoblock caliper has a solid one piece construction where the pistons are fixed and move towards each other. This provides extra stiffness to the caliper, so that no flex occurs during braking. This gives you maximum braking performance and feeling.

How do I know if these calipers fit my bike?

The Brembo calipers we sell come in two different mounting distances: 100mm and 108mm. 100mm calipers will fit most European motorcycles (BMW, Ducati, KTM, Aprilia etc.) and 108mm will fit most Japanese motorcycles (Yamaha, Suzuki, Honda, Kawasaki).

What else should I pay attention to when purchasing these calipers?

Some motorcycles require a set of spacers to be placed between the front fork and the brake caliper this would ensure that the pads are properly seated on the brake disc. In addition, you must pay attention that the angle / location of the banjo bolt in front of the brake line fits well with your brake lines.

Which brake pads are exactly in these calipers?

The Brembo calipers we sell come with a set of Standard Brembo Sintered pads (tt2910hh)