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ZFS-5 120 GX Transmission Mountain Bike

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Why We Like The Cervelo ZFS-5 120 GX Transmission Mountain Bike

For the days we have to put in the miles and want to go fast but still need a capable bike, we go with the Cervelo ZFS-5 mountain bike. With a lightweight frame and a super-efficient suspension platform, the ZFS-5 is a cross-country bike that is race-ready. Designed around a single-pivot, flex stay suspension, the ZFS-5 converts every ounce of energy we put into the pedals into forward momentum to give us a super efficient and fast cross-country bike, plus the efficient-rolling 29-inch wheels keep our speed maintained when rolling over rocks and roots. With 115mm of rear travel, the ZFS-5 can tame drops, small jumps, or whatever else we encounter on today's modern courses. This version of the ZFS-5 comes with a 120mm fork that boosts the capability even more, giving the head tube angle a slack 66.6 degrees so we are more stable and composed when the trails get steeper. An efficient 75-degree seat tube angle allows for efficient and powerful pedaling when climbing uphill, and size-specific chainstays give us an elegant and balanced ride for every size frame. An integrated chainstay and downtube protector protects our frame from chain slap and rock strikes, and two water bottle mounts allow us to stay hydrated when we are in the saddle for multiple hours.

The 120 GX Eagle Transmission AXS build of the Cervelo ZFS-5 comes complete with the most advanced tech in the electronic drivetrain market, upgraded suspension capability, and a great value. Cervelo's carbon frame is made of premium materials, giving us the stiffest and lightest weight frame possible for precise handling and reliability. SRAM's GX Eagle Transmission AXS drivetrain gives us a more budget-friendly version f the best shifting electronic drivetrain on the market, complete with a huge gear range, and a near indestructible constriction RaceFace's ARC Offset 27 alloy rims and DT Swiss's 370 hubs combine to make a race-worthy wheelset that is lightweight, durable, and ready to compete. SRAM's new Level Silver Stealth, 4-piston brakes supply vast amounts of stopping power, and premium Maxxis Rekon tires give us the traction and grip we need while keeping the rolling resistance to a minimum. A RockShox SIDLuxe Select+ rear shock keeps us in traction with the ground when things get rowdy and features a compression switch so we can stiffen it up when climbing. A 120mm RockShox SID Select+ fork helps keep the weight down, soaks up the big hits and has a 3-position damper so we can climb more efficiently out of the saddle.

*Due to a high demand in the global supply chain and bike industry since the start of the pandemic, material weight and exact components are subject to change. We are working diligently to keep tech specs updated, and any adjustments will be of equal or better spec level. If you have any questions, reach out to a Gearhead by chatting online or calling 1-888-276-7130.


  • Cross-country bike with efficient suspension platform
  • Carbon fiber frame is super light and stiff
  • 115mm of single-pivot flex-stay suspension is fast and efficient
  • SRAM GX Eagle Transmission AXS drivetrain shifts flawlessly
  • RockShox SIDLuxe Select+ shock has a 3-position damper for efficiency
  • RaceFace ARC Offset 27 are durable and reliable
  • RockShox SID Select+120mm fork handles rowdy trails
  • Maxxis Rekon tires are efficient and still grippy
  • Item #CVL1X03
Frame Material
Carbon fiber
single pivot, flex stay
Rear Shock
Rockshox SIDLuxe Select+
Rear Travel
Rockshox SID Select+
Front Travel
FSA IS2 1-1/2 x 1-1/2
SRAM GX AXS Pod Controller, 12-speed
Rear Derailleur
SRAM GX Eagle Transmission AXS, 12-speed
SRAM GX Eagle Transmission, Boost 148 DUB, alloy, 12-speed
Chainring Sizes
Crank Arm Length
[small] 170mm, [medium, large, x-large] 175mm
Bottom Bracket
SRAM GX Eagle Transmission, XS-1275, 12-speed
Cassette Range
SRAM GX Eagle Transmission AXS, 12-speed
SRAM Level Bronze
Brake Type
SRAM Centerline 6-Bolt
Race Face Turbine R, 35mm
Handlebar Rise
Handlebar Width
Cervelo silicon grip
RaceFace Aeffect R Alloy, 35mm, 0 degree
Stem Length
[small] 60mm, [medium, large, x-large] 70mm
Prologo Dimension NDR T4.0
OneUp V2
Seatpost Travel
[small] 100mm, [medium] 125mm, [large, x-large] 150mm
[front, rear] Race Face ARC Offset 27, alloy, 29in
[front] DT Swiss 370, 24H, 6 bolt, [rear] DT Swiss 370, XD free-hub, 28H, 6 bolt
Front Axle
15 x 110mm Boost
Rear Axle
12 x 148mm Boost
Tire Clearance
[rear] 2.4in
[front, rear] Maxxis Rekon, EXO 60 TPI,
Tire Size
[front, rear] 29 x 2.4in
not included
SRAM eTap Powerpack 1 battery, downtube protector, chainstay protector, 2 water bottle mounts, SRAM UDH compatible
Manufacturer Warranty
[frame] limited lifetime

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