A quickie with...Brembo GP4-RS calipers

What’s good and what’s not about Brembo GP4-RS calipers (£714)?

What’s good? The tech from these calipers has filtered down from MotoGP. Their die-cast construction means they are 10% lighter than the Italian firm’s top-rated M4 monoblocs, whilst also running cooler and providing increased stiffness. The calipers come with Brembo sintered pads.

What’s not? Uprating cycle parts with exotic trinkets such as these can be an expensive addiction.

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