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2021 Diamondback

Release 4C

A 27.5″ carbon frame full suspension trail bike with high-end components.
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Manufacturer Price

4.350 $(3.741 €)
FrameCarbon
SuspensionFull, 130 / 150mm
ForkFox Performance Float 36
ShockFox Float DPS Performance
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetNX Eagle, Truvativ Descendant
BrakesSRAM G2 R Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Release 4C
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

38 km/h

Release 4C

42 km/h

Similar Bikes

Highest gear

(descending)

Sizing
XS

156cm – 166cm

SM

163cm – 174cm

MD

171cm – 182cm

LG

179cm – 189cm

XL

185cm – 195cm

🐐 Estimated

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews
Mountain Bike Action
Mountain Bike Action Bike Test: Diamondback Release 5C Carbon Trail Bike

Sept 2020 · McCoy

The Budget Trail Ripper

Read Review

Bikerumor
DB set free the Diamondback Release 29 and Carbon Sync'r Hardtail MTBs for 2021

Sept 2020 · Jessie-May Morgan

The Diamondabck Sync'r jumps on 29" wheels for 2021 with all-new carbon frameset, plus key suspension updates to the Diamondback Release 29.

Read Review

Loam Wolf
Review: Diamondback Release 29 2

Mar 2020 · Nic Hall

This bike truly impressed our staff. At just $2,800 it is a truly capable mountain bike at an affordable price point. The Diamondback Release is versatile and can be ridden aggressively but all levels of riders.

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Bicycling
This Diamondback Release 29 2 Is a Lively Big Wheel Trail Bike

May 2019 · Jessica Coulon

This 29er is well equipped, well priced, and easy to ride.

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MTBR
Diamondback Release 29 debuts

Mar 2019 · Mtbr

Diamondback continues to offer a compelling price-for-performance proposition, unveiling its newest mountain bike, the Release 29. - Mtbr.com

Read Review

Pinkbike
Diamondback Release 3 - Review

May 2018 · Richard Cunningham

This affordable mid-travel all-mountain shredder competes with machines that cost much more.

Highs
  • This is what a trail bike should ride like

  • Contemporary geometry

  • Pedal-friendly suspension

Lows
  • Needs more aggressive rubber

  • Shock could use more bottom-out resistance

  • Wishing for a down-tube bottle mount

Read Review

Freehub
Diamondback Release 5C // Bike Review

Apr 2018 · Spencer Johnson

In the last five years bike standards have jumped up substantially—to the point it’s hard to buy a bad bike. We should consider ourselves lucky that the bike industry is full of passionate companies all creating designs that have their own flavor. Now days, it is often less a question of “Is this bike good?” but rather, “Is this bike good for me?” Nearly every combination of wheel size, travel and suspension platform is available, so it’s simply a matter of determining how each one of these factors matches with personal preference and riding style. Originally released in 2016, Diamondback’s Release is perhaps best classified as a decently slack, mid-travel bike designed for all-around ripping. With the 2018 model, Diamondback has now taken the Release to the next level: carbon. They’ve stuck with the bike’s signature Level Link suspension—a game-changer from their previous platforms—and a nearly identical geometry. Every notable and lovable factor of the original Release still stands, the bike is now just lighter and noticeably more stiff.

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BIKE Magazine
Bible Review: Diamondback Release Carbon 4C

Jan 2018

The Release Carbon 4C goes where no other carbon bike has gone before — a budget price point.

Read Review

Geometry
Specs
Build
Frame

Carbon Release 27.5, Monocoque Carbon Front and Rear Triangle, 130mm Travel, Level Link Suspension Platform, Euro Standard Threaded BB, ISCG-05 Tabs, Boost 148x12mm Maxle Drop Out, 1.5" Tapered Headtube, Post Mount Disc Tabs

BB StandardBSA, 73mm, Threaded

Fork

Fox 36 Performance Float, 27.5", 150mm Travel, Grip 3 Position Dampener, Rebound Adjust, 1.5" Tapered Steerer, 110x15mm Thru-axle, 44mm Offset

Travel150mm

Spring TypeAir

Shock

Fox Float DPS EVOL LV, Performance, 3 Position Lever, 200x57mm, 22.2mm Eyelet Width

Travel130mm

Bottom Bracket

SRAM DUB Outboard Bearing

Headset

FSA No. 57 Sealed Cartridge

Stem

Factor Components F355, 35mm Reach, 35mm Bar Bore

Handlebar

DB35 Aluminum 780mm Wide, 15mm Rise, 35mm Bar Bore

Saddle

WTB Volt Chromolyly

Seatpost

KS Rage-I, Internal Dropper, 31.6 w/Westy 1x Remote

TypeDropper

Pedals

DB CNC Platform, Sealed Cartidge Bearing w/Replaceable Pins

Grips

Ergon GE10 Evo Lock-On

Groupset
Rear Derailleur

SRAM NX Eagle, 12 Speed

Crank

SRAM Descendant 6K Eagle w/32T Direct Mount

Shifters

SRAM NX Eagle, 12 Speed

Cassette

SRAM PG-1230 Eagle, 12 Speed, 11-50T

Chain

SRAM NX Eagle, 12 Speed

Brakes

SRAM G2 R, 4 Piston w/180mm Front /180mm Rear Centerline Rotors

TypeSRAM G2 R Hydraulic Disc

Brake Levers

SRAM G2 R

Wheels
Rims

Diamondback Blanchard 28R, Tubeless ready, 32h

Spokes

14g Stainless Steel

Front Hub

32h Aluminum Boost 110x15mm Thru-axle, Sealed Cartridge Bearing

Rear Hub

32h Aluminum Boost 148x12mm Thru-axle, 5 Sealed Cartridge Bearing, Cassette

Tires

Maxxis Minion DHF 27.5x2.3" EXO, TLR, Folding / Maxxis Minion DHR 27.5x2.3" EXO, TLR, Folding

Rider Notes
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First added 4 March

Last updated 11 June

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