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ZFS-5 120 GX Eagle Mountain Bike

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

Whether we are crushing flow trails or putting in the miles, the Cervelo ZFS-5 is one of our go-to bikes when we need a lightweight and capable cross-country bike. The ZFS-5 uses a single-pivot, flex stay suspension to convert every bit of power we put into the pedals into forward momentum to give us a super efficient and fast cross-country bike. Efficient-rolling 29-inch wheels maintain our speed when rolling over rocks and roots and improve our overall speed when it counts. With 115mm of rear travel, the ZFS-5 is more capable than a traditional cross-country bike and can easily rail berms and hit small drops. 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 a 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 build of the Cervelo ZFS-5 comes complete with upgraded suspension capability and quality components at a great value. Cervelo's carbon frame is lightweight and quality-made, giving us the stiffest and lightest weight frame possible for precise handling and reliability. SRAM's GX Eagle drivetrain gives us a huge 12-speed, 10-52-tooth gear range to get us up any technical climb and has a reliable and proven track record. RaceFace's ARC Offset 27 alloy rims and DT Swiss's 370 hubs are paired together to make a quality wheelset that is durable and dependable. SRAM's new Level Bronze Stealth, 4-piston brakes supply tons of stopping power, and premium Maxxis Rekon tires give us the traction and grip we need while keeping the rolling resistance and weight to a minimum. A RockShox SIDLuxe Select+ rear shock has excellent small bump sensitivity and features a 3-positon damper so we can stiffen it up when climbing for efficiency. A 120mm RockShox SID Select fork helps to smooth out the trail and takes bigger hits like a champ, so we can have confidence hitting the flow trail at Mach speed.

*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 an 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 drivetrain shifts flawlessly
  • RockShox SIDLuxe Select+ shock keeps us plated on the trail
  • RaceFace ARC Offset 27 rims are dependable and durable
  • RockShox SID Select+120mm fork handles rowdy trails
  • Maxxis Rekon tires are efficient and still grippy
  • Item #CVL1X04
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 Eagle, 12 speed
Rear Derailleur
SRAM GX Eagle, 12-speed
SRAM GX Eagle, Boost 148 DUB, alloy, 12-speed
Chainring Sizes
Crank Arm Length
[small] 170mm, [medium, large, x-large] 175mm
Bottom Bracket
SRAM GX Eagle, XG-1275, 12-speed
Cassette Range
SRAM GX Eagle, 12 speed
SRAM Level Bronze
Brake Type
[front, rear] 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
Cervelo Saddle
RaceFace Ride XC, Alloy, 30.9mm
Seatpost Travel
[small] 100mm, [medium] 125mm, [large, x-large] 150mm
[front, rear] RaceFace 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
downtube protector, chainstay protector, 2 water bottle mounts, SRAM UDH compatible
Manufacturer Warranty
[frame] limited lifetime

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