Dartmoor Thunderbird FR Evo 27.5-inch freeride mountain bike — full suspension for your time on demanding trails:

Key features

• Wheel sizes: 27.5 in
• Suspension travel: 180 mm front / 180 mm rear
• Fork: Marzocchi Bomber Z1
• Rear shock: X-Fusion H3C HLR, 225 x 75 mm
• Drivetrain: Microshift Advent 1 x 9
• Brakes: SRAM Guide T hydraulic, four pistons, 203 mm rotors
• Seatpost: Fixed post
• Weight: Approx. 17.20 kg

Suspension for bikepark laps

The Marzocchi Bomber Z1 fork works with an X-Fusion H3C HLR coil rear shock. Fork travel is 180 mm and rear frame travel is 180 mm. The shock’s 225 x 75 mm dimensions are separate from wheel travel.

Have the spring and damping setup checked for your weight and riding style. Choose freeride lines and bikepark features within your ability and the bike’s intended use. Regular inspection and suspension servicing remain essential, especially after hard impacts.

Gears for the stretches between descents

A 34T chainring works with an 11–38T nine-speed cassette. You can choose a ratio for changing gradients using one shifter, without a front derailleur to operate.

Check the brakes and contact points

The four-piston brakes give you separate front and rear braking controls. Have the levers and calipers adjusted and check their operation before riding. Set the fixed post and saddle to suit the riding position you need.

Compare the frame sizes

Suggested rider heights are approximately 170–180 cm for Medium and 180–195 cm for Large. Also compare reach, standover clearance and your position with a bike you ride comfortably.

Frame geometry

Dartmoor Thunderbird FR Evo 27.5-inch freeride mountain bike — specifications:

Sizing, weight and other details:

• Wheel sizes: 27.5 in
• Weight: Approx. 17.20 kg

Rear suspension:

• Suspension travel: 180 mm front / 180 mm rear
• Rear shock: X-Fusion H3C HLR, 225 x 75 mm
• Rear shock spring: Coil
• Coil spring rating: 400 lb (Medium) / 500 lb (Large)

Fork:

• Fork: Marzocchi Bomber Z1
• Fork stanchions: 36 mm
• Fork wheel size and axle: 27.5 in, 15 x 110 mm Boost axle

Drivetrain:

• Drivetrain: Microshift Advent 1 x 9
• Cassette or sprocket kit: Microshift CS-H093, 11–38T
• Rear derailleur: Microshift RD-M6195S, short cage, 1 x 9
• Shifter: Microshift Advent Trail Pro M9295-R, 9-speed

Brakes and controls:

• Brakes: SRAM Guide T hydraulic, four pistons, 203 mm rotors

Saddle and seatpost:

• Seatpost: Fixed post
• Saddle: Dartmoor Trail v.2, railed
• Seatpost: Aluminium, 30.9 mm diameter, 350 mm length

Frame:

• Frame: Dartmoor Thunderbird FR Evo, 6061-T6 aluminium, full suspension
• Frame sizes: Medium, Large
• Frame rear axle: 148 x 12 mm Boost
• Frame fork compatibility: 1.8 in tapered forks with 69 mm crowns
• Frame derailleur hanger: SRAM UDH

Cranks:

• Cranks: FSA Comet Heavy Duty, forged aluminium, 170 mm

Chainring or sprocket:

• Chainring: 34T, direct mount

Chain:

• Chain: KMC Z9

Wheels and rims:

• Rims: Dartmoor Shield, 27.5 in, 32H, F/V

Handlebars:

• Bar: Dartmoor Viper, aluminium, 810 mm width, 35 mm clamp

Stem:

• Stem: Dartmoor Viper, aluminium, 35 mm clamp

Headset:

• Headset: Dartmoor Storm, tapered, cartridge bearings
• Lower headset bearing: 60 mm

Grips and bar ends:

• Grips: Dartmoor Roots

Pedals:

• Pedals: Dartmoor Vibe

Front hub:

• Front hub: Dartmoor Reel Boost, aluminium, cartridge bearings, 110 x 15 mm Boost, 32H

Rear hub and driver:

• Rear hub: Dartmoor Reel Boost, aluminium, cartridge bearings, 148 x 12 mm Boost, 32H

Tyres:

• Tyres: Vee Tire Flow Snap, 27.5 x 2.6 in, MPC

Warranty registration

Register your purchase to activate the stated two-year manufacturer’s warranty, following the terms supplied with your bike. Keep the purchase receipt and the receipt for the initial professional service.

Replacement parts under a claim

If a claim is accepted and the original product or part is unavailable, the manufacturer or seller may provide an equivalent replacement. Its appearance or construction may differ, while its functional specification remains suitable for the original intended use. This does not affect your statutory consumer rights.

Safety while riding

Riding, falls and impacts put loads through the bike and can damage components. No bike is indestructible: parts can wear out or become damaged. Check the frame, fork, bars, wheels, axles, cranks, pedals, brakes and bolted connections before every ride. Inspect the bike after a hard impact and stop riding if you find looseness, cracks or damage. Have any problem checked and repaired before riding again.

Wear a properly fitted helmet and suitable protective pads. Read our important information before buying and using a bike for assembly, servicing and riding checks.

Important information about your new bike

• Read the instructions and warranty supplied with the bike before riding.
• The bike is delivered approximately 90% assembled for shipping.
• Before the first ride, fit the pedals, saddle and handlebars, and the front wheel where required. Follow the assembly instructions and check all components.
• Have a professional bike workshop carry out a pre-ride inspection. This is a paid service; keep the receipt as proof for the manufacturer’s warranty and follow the warranty terms supplied with your bike.

The manufacturer’s warranty is separate from your statutory consumer rights. Continue to inspect and service the bike throughout its use.