SR Suntour Epicon LOD rear shock£125.00

Affordable air shock

BikeRadar score2/5

Suntour’s Epicon is an obvious lockout-equipped upgrade option for basic full-suspension bikes, but it can’t cope with more demanding riding. However, it’s light and we had no issues with the seals leaking oil or the valve leaking air.

The on/off lockout lever is big enough to find without looking down and the rebound dial is detented for positive adjustments. There’s plenty of rebound damping range too. Initial stiction kills small bump sensitivity, but once it’s moving it’s relatively smooth and linear at lower shaft speeds or under smaller loads. The lockout lever works as a complete stop for smooth climbs too.

As impact sizes and shaft speeds increase the damping gets overwhelmed quickly. One of our test shocks started to spike viciously, while the other felt notchy through the stroke and clunked at the turnaround point. Both heated up quickly even on a short hand dyno session, with the notchy shock spiking after intense repeated cycles. If you hit a bump in lockout mode, it sucks itself back to top out with a savage clang.

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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