Shimano Deore M615 mountain bike disc brakes review£89.97

Simple, reliable and user-friendly

BikeRadar score4.5/5

Shimano’s latest Deore brake offers all the control and power you could need in a simple, ultra reliable, user friendly, ultra bargain package.

Whenever we asked for feedback on these brakes, the unanimous answer was that they were absolutely outstanding.

The calliper is a bit basic – with its fixed hose exit creating a big cable loop on some bikes – and it’s not a light system either, but the stock organic pads last okay and sintered sets improve dirty weather durability extensively, as well as behaving better in hard and hot use situations.

The lever end is neatly workmanlike, with Shimano’s double-decker master cylinder and one-and-a-half-finger lever giving good feel. The hinged I-Spec mount means it syncs well with shifters/remotes. You can adjust the reach with an Allen key, and the funnel based bleed system is user friendly.

The cunning ServoWave cam moves the pads on to the rotor quickly and then increases power at the point of contact. The consistent modulation and control were praised by everyone who’s used the Deores. Rub-free calliper set-up is easy and reliability is fantastic.

The M615 is outstanding value, whether you only need the brake or the reasonably priced rotor and mount too. Check the numbers though – older Deore M575 brakes are wooden, glaze-prone and still lurking under some shop counters.

Note: UK price includes rotor, US price does not

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: 44
  • 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 tfhan 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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