Hope M4 disc brake review£185.00

Four-pot stoppers

BikeRadar score3/5

One of the few brakes still sticking with a multi-cylinder format, the M4 suffers on the scales but rewards in terms of control and feel. The Tech master cylinder is the same big block of machined alloy as the X2 and you get the same high-leverage drilled rotor.

Metal adjusters on the lever control blade reach and bite point, and they work superbly. The oversized calliper also uses a pair of different sized cylinders to squeeze the long pads. Power is average rather than astounding, although fine control is excellent from the long levers.

The brake can be pimped up with the alloy centre floating rotors and braided hoses shown here, which save a few grams and tighten up lever feel more. The floating rotors and brake mounts can cause clearance issues on some forks and it doesn’t snug up to shifters very well without using a Matchmaker mount. The long pads and calliper need careful alignment to stop them rubbing and the whole setup is heavy.

Guy Kesteven

Freelance Writer, UK
Guy started filling his brain with cycle stats and steaming up bike shop windows back in 1980. He worked the other side of those windows from '89 while getting a degree in “describing broken things covered in mud" (archaeology). Dug historical holes in the ground through the early '90s, then became a pro bike tester in '97. Guy has ridden thousands of bikes and even more components the world over since then and can remember them all in vivid, haunting detail. Can't remember where the car keys are, though.
  • Age: 45
  • Height: 180cm / 5' 11"
  • Weight: 68kg / 150lb
  • Waist: 76cm / 30in
  • Chest: 91cm / 36in
  • Discipline: Strict sadomasochist
  • Preferred Terrain: Technical off-piste singletrack and twisted back roads. Up, down, along — so long as it's faster than the last time he did it he's happy.
  • Current Bikes: An ever changing herd of test machines from Tri bikes to fat bikes and everything in between.
  • Dream Bike: His Nicolai Helius AM custom tandem
  • Beer of Choice: Theakston's Old Peculier (not Peculiar)
  • Location: Yorkshire, UK

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