Freeride has many faces - and the all-new Thunderbird FR family is built to master them all. We scrapped the old geometry and started from the ground up, creating a frame that’s stronger, more agile, and ready for the biggest jumps.
The Thunderbird FR Pro GX is the ultimate bikepark machine from Dartmoor-Bikes. This is the best freeride bike we have ever built, straight out of the box - designed for riders who want to shred. Everything.
At the heart of this bike is our brand new version of Thunderbird FR frame in a stealth matt black finish with mirror silver decals. It runs a mullet setup with a 29-inch front wheel and 27.5-inch rear for the perfect mix of rollover speed and playful control, but you can also run it full 27.5 if you want.
Up front, the RockShox ZEB Ultimate fork in striking Electric Red delivers 190 mm of ultra-controlled travel, combining stiffness and precision worthy of the world’s toughest freeride lines. Out back, the RockShox Vivid Air Ultimate shock provides the perfect blend of sensitivity, adjustability, and support - with that bottomless feel only the new Vivid Air can deliver.
The SRAM GX DH 7-speed drivetrain with an 11–25T cassette keeps the gearing tight, clean, and ready for bike-park speed runs. Tough Patrol welded rims paired with Reel Expert hubs form a durable and reliable wheelset wrapped in Schwalbe Albert Gravity Pro radial-construction tires - the pinnacle of grip, traction, and precision control across any surface.
The cockpit is dialed with the new Thunder CNC-shaped stem and Lightning Hi handlebar for pinpoint steering response. When it’s time to slow things down, SRAM Maven Silver brakes deliver massive stopping power and consistency no matter how steep the line gets.
Send it, Bro!
MAIN FEATURES
- 190/180mm front/rear suspension travel
- New version of Thunderbird FR frame
- Mullet setup (29" front, 27.5" rear)
- RockShox Zeb Ultimate fork in Electric Red with 190mm travel
- RockShox Vivid Air Ultimate rear shock
- SRAM GX DH 7-speed drivetrain with 11-25T cassette
- New FSA Comet Heavy Duty crankset
- New Dartmoor Patrol v.2 welded rims with Reel Expert hubs
- Schwalbe Albert Gravity Pro tires with radial construction
- New Dartmoor Thunder fully CNC machined stem with Lightning Hi handlebar
- SRAM Maven Silver brakes for ultimate stopping power
With either a 200mm dual crown or a 180mm single crown fork, it's designed for bikepark laps with friends who choose double black diamonds for a warm-up run. Thunderbird FR pedals just right to keep the sweat off during beer runs while its suspension stays responsive enough to prevent cold ones from ruffling.
Thanks to its high leverage ratio at the beginning of travel, Thunderbirds easily overcomes friction, ensuring that the initial part of the travel is sufficiently soft. At the end of the stroke, higher progression offers resistance against bottoming out, guaranteeing the bike can handle whatever challenges you encounter.
All-aluminum Thunderbird frames are designed to be compatible with the new generation of 1.8" tapered forks featuring 68–69mm crowns. Bigger means stronger — a crucial advantage in Superenduro and Freeride riding. Of course, these frames also work perfectly with standard tapered forks with 1.5" steerer tubes. And when you purchase our Storm or Storm Intro headsets, both crown races are included.
The massive rocker is made of one piece of forged aluminum, keeping lateral stiffness high and providing an on-trail feel even in rough terrain.
Thunderbird frames are fully compatible with a Sram Universal Derailleur Hanger (UDH), and Eagle Transmission drivetrains.
Our custom bicycle frame protectors are crafted from thick thermoplastic elastomer material, offering superior impact resistance against scratches, dents, and impacts. Designed with a ribbed pattern for added durability, these protectors provide a perfect fit for Thunderbird frames, ensuring maximum protection without compromising aesthetics.
All bearings in our full suspension frames feature extra dedicated custom sealing for enhanced protection against dust, dirt, and moisture. Red Mobil grease provides effective lubrication over extended periods, ensuring minimal friction and optimal performance. MAX-type bearings offer over 30% more load capacity than caged bearings.
180mm of rear and up to 200mm of front travel with geometry allowing you to fit a 29-inch front wheel, which means you can easily match it with a dual crown fork and keep the eyes away from your lovely mullet.
Check out our quick guide on choosing the right frame size - it only takes a few minutes but guarantees endless fun on the trails!
Specification
WHEEL SIZE
29"(front)/27.5"(rear)
FRAME
Matt Midnight Black, AL 6061-T6, travel 180mm
FRAME SIZE
Small, Medium, Large
FORK
Rock Shox Zeb Ultimate 29", Charger 3.1 RC2, travel 190mm, axle 15mm, 1.8 tapered
SHOCK
Rock Shox Vivid Air Ultimate, DH RC2, 225X75mm
SHOCK HARDWARE
22.2x8mm/Trunnion
HEADSETS
Dartmoor Storm OEM
DERAILLEUR
SRAM GX DH 1x7
SHIFTER
SRAM GX DH, 7-speed
BRAKES
SRAM Maven Silver, 4-piston brakes, rotors SRAM Centerline front/rear 200mm
CRANKSET
FSA Comet Heavy Duty 2026, 160mm
CHAINRING
Direct mount 36T
CASSETTE
SRAM PG-720, 11-25T
CHAIN
SRAM PC-1110
PEDALS
without
RIMS
Dartmoor Patrol v.2 29", 32H, F/V, tubeless ready (front) / Dartmoor Patrol v.2 27.5", 32H, F/V, tubeless ready
FRONT HUB
Dartmoor Reel Expert Boost 110x15mm, 32H
REAR HUB
Dartmoor Reel Expert Boost 148x12mm, Shimano HG freehub
FRONT TIRE
Schwalbe Albert Gravity Pro 29x2.5, Ultra Soft, Radial
REAR TIRE
Schwalbe Albert Gravity Pro 27.5x2.5, Soft Radial
HANDLEBAR
Dartmoor Lightning Hi 800mm, Ø35mm
STEM
Dartmoor Thunder CNC, Ø35mm
GRIPS
Dartmoor Roots
SADDLE
Dartmoor Trail V.2
SEATPOST
Dartmoor Player, Ø30.9mmx300mm
COLOR
Matt Midnight Black
WEIGHT
17.40kg (w/o pedals)
| size | reach (mm) | stack (mm) | ST (mm) | TT (mm) | eTT (mm) | CS (mm) | HT (mm) | HT angle (°) | eST angle (°) | BB drop (mm) | WB (mm) | stand-over (mm) | wheel size (") | hub size | headset type (S.H.I.S) | BB type (mm) | post diam. (mm) | clamp diam. (mm) | brake mount | max. rotor size (mm) |
| SMALL | 445 | 652 | 410 | - | 545 | 430 | 110 | 63.5 | 81 | 34/15 | 1237 | 795 | 27.5/Mullet | 148x12 | IS42/IS60 | - | 30.9 | 34.9 | PM 180 | 203 |
| MEDIUM | 470 | 652 | 430 | - | 570 | 430 | 110 | 63.5 | 81 | 34/15 | 1262 | 795 | 27.5/Mullet | 148x12 | IS42/IS60 | - | 30.9 | 34.9 | PM 180 | 203 |
| LARGE | 490 | 652 | 450 | - | 590 | 430 | 110 | 63.5 | 81 | 34/15 | 1282 | 795 | 27.5/Mullet | 148x12 | IS42/IS60 | - | 30.9 | 34.9 | PM 180 | 203 |
media
