Dartmoor Sparrow Junior 27.5/26

Name: Dartmoor Sparrow Junior 27.5/26
Brand: Dartmoor

2026 YouthGeneral youth Manufacturer page

Fork travel: 130 mm
Wheels: 27.5″
Drivetrain: 1 × 9 30t / 11–46t
Gear range: 418%
Weight: 13.5 kg 29.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

27.5/26

The manufacturer did not publish rider heights for these sizes.

Components

15 of 18 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

glossy Solar Eclipse or matt Cool Grey/Blue, AL 6061-T6 Not identified

Suspension

1 part

Fork
- X-Fusion

Drivetrain

5 parts

Cassette
- Shimano CS-LG300 11–46t
CS-LG300
Chain
- Shimano CN-LG500
CN-LG500
Crankset
- Prowheel
Rear derailleur
- Shimano Cues RD-U4000 9 speeds
RD-U4000
Shifters
- Shimano Cues SL-U4000
SL-U4000

Brakes

1 part

Brakes
- Tektro HD-J2820
HD-J2820

Wheels and tires

4 parts

Front hub

w/sealed bearings, 9mm QR, 32H Not identified
Rear hub
- Shimano
Rims
- Dartmoor
Tires
- Kenda Amrak

Cockpit and contact points

6 parts

Grips
- Dartmoor
Handlebar
- Dartmoor
Pedals
- Dartmoor
Saddle
- Dartmoor
Seatpost

alu 6061, 30.9x300mm Not identified
Stem
- Dartmoor

Sizes and geometry

1 size Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 27.5/26

Table

Reach 400mm

Stack 595mm

Wheelbase 1099mm

Head angle 66.0°

Seat angle 78.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	400
Stackmm	595
Seat tube lengthmm	336
Head tube lengthmm	100
Head tube angle	66°
Seat tube angle	78°
Chainstay lengthmm	410
Wheelbasemm	1099
Front centermm	691
Bottom bracket dropmm	35
Standover heightmm	650
Fork rakemm	38
Stack/reach ratio	1.49

Not published by the manufacturer: Top tube length, Bottom bracket height, Trail, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 13.5 kg

29.8 lb

Suspension

Suspension configuration: Hardtail
Front travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 46
Lowest gear: 17.9 in
Highest gear: 75.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 27.5″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.9 km/h
Highest gear: 28.7 km/h

Total gear range 418%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 17.9–75.0 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2026 builds

Differences across 2026 builds
Specification	This bicycle Dartmoor Sparrow Junior 27.5/26	Dartmoor Sparrow	Dartmoor Sparrow Intro	Dartmoor Sparrow Junior 26/24
Frame
Bicycle weight	13.5 kg	13.6 kg	15.25 kg	12.6 kg
Suspension
Front travel	130 mm	130 mm	130 mm	120 mm
Drivetrain
Smallest chainring	30	30	32	30
Largest chainring	30	30	32	30
Rear sprockets	9	10	9	8
Largest sprocket	46	48	42	38
Lowest gear	17.9 in	17.2 in	21.0 in	20.5 in
Highest gear	75.0 in	75.0 in	80.0 in	70.9 in
Wheels
Wheel configuration	Same size	Different sizes	Different sizes	Same size
Other specifications
Fork spring	Air	Air	Coil	Air
Tire width	2.4″	2.3″	2.3″	2.4″
Wheel size	27.5″	29″ / 27.5″	29″ / 27.5″	26″