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

2021 diamondback release 29 1 aluminium full suspension mountain bike red
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In addition to the rapid expansion of the Haanjo gravel bike collection, Diamondback have added two new mountain bikes to their off-road line-up for 2021. A new aluminium full suspension trail bike; the Diamondback Release 29 1, and a new carbon hardtail; the Diamondback Sync’r 29. Here’s a quick intro.

Diamondback Release 29 1

The Diamondback Release 29 was, well, released for the first time in 2019. There are no geometry or travel changes for this model year. What this aluminium frame does get is a few key spec updates and a fresh lick of paint.

2021 diamondback release 29 1 aluminium full suspension mountain bike red

Diamondback have partnered with SR Suntour for suspension on this year’s Release. The Aion fork delivers 140mm of travel at the front. The Edge R shock supports 130mm rear wheel travel serviced by Diamondback’s Level Link suspension platform. The headtube sits at a conservative 67.7°. The seat tube is slack by current standards at 73°.


2021 diamondback release 29 1 pricing spec listThe Diamondback Release 29 doesn’t offer the roomiest cockpit we’ve ever seen. Reach figures span 402mm-472mm across the small to extra large size range; just 427mm in medium with a seat tube length of 432mm. Chainstays sit at 446mm, consistent across the sizes.

2021 diamondabck release 29 geometry chart 130mm travel 29er

Complete Spec List

Frame – Diamondback Release 29, 130mm Travel, Level Link Suspension Platform, Hydroformed Tubing, ISCG-05 Tabs, Boost 148x12mm Maxle Drop Out, 1.5″ Tapered Headtube

Rear Shock – Suntour Edge R, 200x57mm, Rebound Adjust, 22.2mm Eyelet Width

Fork – SR Suntour Aion 29″, 140mm Travel, Air Spring w/Rebound Adjust, 35mm Stanction, 1.5″ Alloy Taper Steerer, 110x15mm Thru-axle

Headset – FSA No. 57 Sealed Cartridge

Cranks – SRAM SX w/Steel 32T Direct Mount

Bottom Bracket – SRAM Powerspline, 118/73

Rear Derailleur – SRAM SX Eagle, 12 Speed

Shifter – SRAM SX Eagle, 12 Speed

Cogset – SRAM PG1210, 12 Speed, 11-50T

Chain – SRAM SX Eagle, 12 Speed

Front Hub – 32h Alloy, Boost 110x15mm Thru-axle, Sealed Cartridge Bearing

Rear Hub – 32h Alloy, Boost 148x12mm Thru-axle, 4 Sealed Cartridge Bearing, Cassette

Spokes – 14g Stainless Steel

Rims – Diamondback Blanchard 28R, Tubeless ready, 32h

Tires – WTB Vigilante 27.5×2.3″, Wire Bead

Brakes – TRP Slate X2, w/180mm Front / 180mm Rear Rotors

Pedals – DB Alloy Platform w/Replaceable Pins

Handlebar – DB35 Alloy, 760mm Wide, 15mm Rise, 35mm Bar Bore

Grips – DB Lock-On Grip

Stem – DB35 Alloy, 35mm Reach, 35mm Bar Bore

Seat – WTB Koda Comp

Seat post – TranzX YSP18JL, Internal Dropper, 31.6mm w/1x Remote, SM = 100mm, MD = 130mm, LG/XL = 150mm

Extras – Tool Kit, DB Shock Pump, DB Mud Guard, Spare RD Hanger

Diamondback Sync’r Carbon 29

Diamondback’s most progressive hardtail mountain bike now comes as a 29er. In fact, its geometry is arguably more aggressive than that of the full suspension Release. For 2021, it also gets an all-new monocoque carbon frame a tapered headtube and boost rear spacing for increased stiffness.

new 29er hardtail diamondback mtb carbon

The 2021 Diamondback Sync’r Carbon 29 gets a 140mm travel fork in the form of a Fox 34 Performance Float. That sits at a head angle of 66°, paired with a seat tube angle of 74°. Again, this Diamondback hardtail doesn’t offer a super roomy cockpit with reach figures spanning 415mm-472mm over the S-XL size range. Chainstays sit at 435mm, consistent across the sizes.


2021 diamondback sync'r carbon 29 hardtail mountain bike

2021 diamondback sync'r carbon 29 geometry chart

Complete Spec List

Frame – New Diamondback Sync’r Monocoque Carbon, Asymmetrical Chainstays, Internal Cable Routing, Tapered Headtube, Euro Standard Threaded BB, ISCG-05 Tabs, Internal Dropper Post Ready, 148x12mm Boost Hub Spacing, 29×2.4″, Post Mount Disc, w/ Replaceable Hanger

Fork – Fox 34 Performance Float, 140mm of Travel, Grip 3 POS, 15mm Thru Axle

Headset – FSA No-57E Taper 1.5 /1-1/8″ Standard Cups, Sealed Cartridge

Cranks – SRAM NX, 32T Eagle Chainring

Bottom Bracket – Truvativ Powerspline

Rear Derailleur – SRAM GX Eagle, 12 Speed

Shifter – SRAM GX Eagle 12 Speed X-Actuation Trigger

Cogset (Cassette/Freewheel) – SRAM XG1275 Eagle, 12 Speed, 10-50T

Chain – SRAM GX Eagle, 12 Speed

Front Hub – 32h Alloy, Boost 110x15mm Thru-axle, Sealed Cartridge Bearings, w/ CNC Disc Mount

Rear Hub – 32h Alloy, Boost 148x12mm Thru-axle, 5 Sealed Cartridge Bearing, for SRAM XD Cassette, w/ CNC Disc Mount

Spokes – 14g Stainless Steel

Rims – Diamondback Blanchard 32R, Tubeless compatible, 32h

Tires – Maxxis Minion DHF 29×2.5″ EXO, TLR, Folding / Maxxis Minion DHR 29×2.4″ EXO, TLR, Folding

Brakes – Shimano MT501 Hydraulic Disc, w/ 180mm Front and 160mm Rear Rotors

Brake Levers – Shimano MT501 Hydraulic

Pedals – DB4L Alloy Platform, Sealed Cartridge Bearings w/ Replaceable Pins

Handlebar- Race Face Æffect 35, 20mm Rise, 780mm Wide, 35mm Bar Bore

Grips – New DB “Flanged” Lock-on, 135mm Silcone

Stem- Diamondback “Tec”, 35mm Reach, 35mm Bar Bore

Seat – DB Sync’r Saddle

Seatpost – X-Fusion Manic Dropper Post, 125mm (S,M) / 150mm (L,XL) of travel

Extras – Tool Kit

Weight- 29.1 Lbs

Pricing & Availability

The 2021 Diamondback Release 29 1 will set you back $2,500. The Diamondback Sync’r 29er hardtail is a little pricier thanks to its all-new carbon frame. It will cost you $3,500. Both bikes are labelled “Out Of Stock” on the US website for now. Keep an eye on the Diamondback website for updates on availability.


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Jason West
Jason West
3 years ago

Finally a nice nimble trail bike. Longer and slacker isn’t always better. Really, for my area it would be perfect!

Dylan Sutton
Dylan Sutton
3 years ago

That cable routing on the Release…I don’t mind external routing but what were they thinking? “By 2019 AXS will have trickled down to SRAM SX groupsets and will include wireless brakes”? “By 2019 everyone will have gone back to hydration packs so nobody will be put off by not being able to mount a water bottle in the frame”? “By 2019, new paints will have been developed that are impervious to wear from cable rub”? “We can sell this thing so cheap that nobody will care that cable management was a complete afterthought when the frame was designed”? “Our buyers are mainly uninformed newcomers to the sport who won’t realise what a pain this cable routing is until they see the shiny bare metal where the paint has rubbed off the seatstay above the derailleur, both sides of the downtube, and the right side of the downtube head-tube. By that time it’s too late for them to get their money back”?

[FWIW I don’t personally run a bottle on my MTBs, but did own a 2007 Giant Reign so I know first-hand what crappy cable routing is!]

3 years ago

$3500 for that carbon hardtail? Chameleon owners everywhere chuckle….

3 years ago

Don’t mind me, just stopped in to see if they can carry a water bottle yet and or if you can run the saddle in the right spot. No?

No worries, carry on!

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