Diamondback Bicycles Release 4 Carbon Mountain Bike (October 2020)

Diamondback Bicycles Release 4 Carbon Mountain Bike

Diamondback Bicycles Release 4 Carbon Mountain Bike

  • ✔ Unique Link Level Rear Suspension Technology
  • ✔ 12-Speed SRAM NX Eagle Gearing System
  • ✔ Front And Rear High Performance Hydraulic Disc Brakes
  • ✔ Pro Maxxis Minion DHF Off Road Tires
The Release 4 Carbon is such a playful bike. Diamondback have made a great, comfortable climber.
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The Release 4C features the same bottomless-feeling rear suspension and deft handling as our aluminum Release models, but with an even lighter, stiffer chassis built from carbon fiber. It starts with our Level Link suspension system, which isolates chain forces from trail inputs, meaning the suspension doesn’t bob when you stomp on the pedals, yet becomes extremely plush on technical descents. For smooth bump-eating performance, the Release 4C is equipped with a Fox Float DPS EVOL LV rear shock and a 150mm travel Fox 34 Performance Float fork. SRAM’s NX Eagle 12″-speed single-ring drivetrain provides consistent shifting and, thanks to its 50-tooth granny gear, makes short work of pesky climbs. SRAM Guide R brakes keep you slicing through the most technical lines all day long.

The R4C’s geometry highlights include a 66° head tube angle, 425mm chainstays, and a 73° seat tube angle. The carbon Release models feature 130mm of travel in the rear, with 150mm forks up front. One of its strongest attributes is Diamondback’s take on the virtual pivot point (VPP) linkage system. It felt responsive and plush through small and large hits and tracked well over rooted sections and rock gardens. The back end simply felt planted.

The Release 4 Carbon comes with a Fox 34 Performance fork and a Fox Float EVOL shock. The drivetrain is Shimano’s SLX 1×11 with a 30T RaceFace Aeffect crank. Diamondback managed to include a KS Lev dropper (125mm for sizes S/M, 150mm for L/XL) and Shimano Deore M6000 brakes. The wheels are Diamondback-branded so it’s hard to say how nice they are, but the rims are tubeless compatible and ship with the appropriate valves.

The main complaint with the Release 4 Carbon is that the rear exposed pivot points can gather debris. So it needs to be kept clean and free from dirt regularly. Not such a big deal. If you’re in the market to get a high end mountain bike then looking after it is a given.

We love this bike. If you have the cash, you really will not be disappointed.