Dartmoor E-Sparrow 29/27.5 mullet electric mountain bike — pedal assistance for your trail rides:

Key features

• Wheel sizes: 29 in front / 27.5 in rear
• Motor: Bafang M420, 80 Nm
• Battery: Bafang BT, 450 Wh
• Fork: X-Fusion MIG 29, 130 mm travel
• Drivetrain: Microshift Advent X, 1 x 10
• Seatpost: X-Fusion Manic, 125 mm dropper
• Weight: 23.20 kg

Assistance for the climb, space for the descent

The Bafang M420 motor provides pedal assistance with 80 Nm of torque, paired with a 450 Wh battery. Choose from ten gears as the gradient changes, then lower the Manic dropper when you want more room to move on the way down.

A larger front wheel with a smaller rear

The 29-inch front wheel helps you roll over roots and stones, while the 27.5-inch rear keeps the back of the bike more compact. Both use 2.6-inch Crown Gem tyres. The Raptor rims are tubeless ready; a tubeless conversion requires compatible tyres, tape, valves and sealant.

Check your frame size

Suggested rider heights are approximately 160–175 cm for Medium and 175–185 cm for Large. Compare reach, standover clearance and riding position with a bike you ride comfortably.

Frame geometry

Battery care

Follow the battery and charger instructions supplied with the bike. Plan your route with a reserve: assistance level, climbing, temperature and rider load all affect how far a charge lasts.

Dartmoor E-Sparrow 29/27.5 mullet electric mountain bike — specifications:

Sizing, weight and other details:

• Wheel sizes: 29 in front / 27.5 in rear
• Motor: Bafang M420, 80 Nm
• Battery: Bafang BT, 450 Wh
• Weight: 23.20 kg

Fork:

• Fork: X-Fusion MIG 29, 130 mm travel
• Fork axle: 15 mm Boost
• Fork damper: RC
• Fork stanchions: Aluminium

Drivetrain:

• Drivetrain: Microshift Advent X, 1 x 10
• Cassette: Microshift CS-H104, 11–48T
• Rear derailleur: Microshift Advent X RD-M6205GM, clutch, 1 x 10
• Shifter: Microshift Advent X SL-M9605-R, 10-speed

Saddle and seatpost:

• Seatpost: X-Fusion Manic, 125 mm dropper
• Saddle: Dartmoor Ferns, railed
• Seatpost diameter: 30.9 mm

Frame:

• Frame: 6061-T6 aluminium, hydroformed, Medium / Large
• Frame rear axle: 148 x 12 mm Boost

Handlebars:

• Bar: Dartmoor Tornado Low, aluminium, 780 mm width, 31.8 mm clamp

Stem:

• Stem: Dartmoor Viper Short, aluminium, 31.8 mm clamp

Headset:

• Headset: Dartmoor Blink, cartridge bearings, IS42/IS52

Wheels and rims:

• Rims: Dartmoor Raptor, 29 in front / 27.5 in rear, 32H, 30 mm internal width, tubeless ready

Tyres:

• Front tyre: Vee Tire Crown Gem, 29 x 2.6 in
• Rear tyre: Vee Tire Crown Gem, 27.5 x 2.6 in

Cranks:

• Cranks: Samox ET38

Bottom bracket:

• Bottom bracket: BSA/Euro, 73 mm

Chainring or sprocket:

• Chainring: 36T, narrow-wide

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 Cassette, aluminium, cartridge bearings, 148 x 12 mm Boost, 32H

Chain:

• Chain: KMC X10

Brakes and controls:

• Brakes: Shimano MT-201 hydraulic, two pistons, 180 mm rotors

Grips and bar ends:

• Grips: Dartmoor Maze Lite

Pedals:

• Pedals: Dartmoor Vibe

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.