Mountain Equipment Company

Ridley X-Trail A55 Bicycle - Unisex


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What kind of bike can hang in on club rides, gravel grind and race cyclocross all in one weekend? Until now, nothing, but that's changed with the arrival of the X-Trail series. With many of the features found on its carbon sibling (the X-Trail C), the X-Trail A draws on a high-performing aluminum frame that won't break the bank. Incredibly versatile, the geometry combines the nimbleness of a cyclocross ride with the high-speed stability and stiffness of a road bike. Massive clearance allows up to 700x42C or 27.5x55mm. tires to hammer the cyclocross circuit or go bikepacking by simply swapping out tires or wheels. Lightweight and smooth, the 1x11-speed SRAM Apex gruppo is a performer with a versatile gear range. Mechanical TRP Spyre C disc brakes provide stopping power with nuanced modulation (and they're great value). Smart details make this package a winner: asymmetric rear triangle for shock absorption and stiffness, hidden fender mounts for everyday usability and a scuff guard on the fork to prevent damage when swapping out wheels.

  • Triple butted hydroformed aluminum frame is light, incredibly durable and represents huge value
  • Lowered bottom bracket provides the high speed stability needed for road riding
  • Rear triangle design features uniquely shaped individual tubes for maximum stiffness, low weight and a comfortable degree of flex
  • Bridgeless seat stay design improves tire clearance and allows the seat stay to independently flex for added shock absorption
  • Oversized tapered head tube increases front end stiffness and steering precision
  • Asymmetric carbon fibre fork features an aluminum steertube and integrated scuff guard
  • 1x11 SRAM Apex gruppo yields precise shifting in a lightweight package
  • TRP Spyre C mechanical disc brakes with 160 and 140mm rotors front and back respectively, provide power and modulation in any weather
  • 4ZA Stratos stem, handlebars, and seatpost are designed with race performance in mind
  • SRAM Apex crank is equipped with a 42T chainring and is paired with the a range 11-42t cassette
  • 12mm thru-axles front and rear provide outstanding stiffness, tracking and quick wheel changes
  • Frame design allows for use of 700c, or 27.5in wheels
  • Tubeless-ready 4ZA Allroad Adventure wheels are designed to survive the rigours of cross, training, commuting and adventure riding
  • 40C Clement X'Plor MSO tires are designed for everything that Mother Nature has to throw at you
  • Hidden fender mounts add touring versatility
  • Bikes are covered by MEC's Rocksolid Guarantee and Bike Service Agreement. You can bring your bike to any MEC bike shop for free adjustments and minor maintenance for a year after purchase
  • Ridley was born in Flanders, Belgium, a region infamous for harsh cycling conditions. Against this backdrop Ridley engineers, tests, and refines their frame construction, race technology, tube profiles, and their own branded component line, 4ZA

Tech specs

Weight10.58kg (Small)
10.65kg (Medium)
Ideal for
  • Cyclocross
FrameRidley X-Trail Disc 6061 aluminum
ForkCarbon with aluminum steerer
Stem4ZA Stratos 31.8mm
Seatpost4ZA Stratos
HeadsetFSA NO. 42-ACB
Handlebars4ZA Stratos 31.8mm
Grips/tape4ZA Cork
  • TRP Spyre C (mechanical disc)
Brake leversSRAM Apex
ShiftersSRAM Apex
Derailleur (front)N/A
Derailleur (rear)SRAM Apex
Crank + ringsSRAM Apex 42T
Bottom bracketGXP
PedalsSold separately
Hub (front)Formula
SRAM PG 1130 11-speed 11-42T
ChainKMC X11
  • Clement X'Plor MSO 700 x 40
Made inTaiwan

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4.5 out of 5 stars with 2 reviews for Ridley X-Trail A55 Bicycle - Unisex

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