Trek Superfly 24 Disc

2015 YouthGeneral youth

Suspension: Rigid
Wheels: 24″
Drivetrain: 3 × 8 22–42t / 11–32t
Gear range: 555%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

10 of 14 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

24" Dialed frame size, Alpha Silver Aluminum Not identified

Drivetrain

5 parts

Cassette
- Shimano CS-HG31 8 speeds
CS-HG31
Crankset
- SR Suntour 42/32/22t
Front derailleur
- Shimano Altus
Rear derailleur
- Shimano Altus RD-M310
RD-M310
Shifters
- Shimano Tourney

Brakes

1 part

Brakes
- Shimano BR-M445
BR-M445

Wheels and tires

1 part

Tires
- Bontrager

Cockpit and contact points

6 parts

Handlebar
- Bontrager
Headset

1-1/8" Semi-Integrated Not identified
Pedals

Dialed 9/16", platform Not identified
Saddle

Dialed 24" size, padded Not identified
Seatpost
- Bontrager
Stem
- Bontrager

Sizes and geometry

1 size

Rider-height ranges are not published for these sizes.

Size

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 42
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 16.5 in
Highest gear: 91.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 1.85″
Wheel size: 24″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.3 km/h
Highest gear: 35.1 km/h

Total gear range 555%

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: 16.5–91.6 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 2015 builds
Specification	This bicycle Trek Superfly 24 Disc	Trek Superfly 16	Trek Superfly 20	Trek Superfly 24	Trek Superfly 5	Trek Superfly 6
Frame
Fork material	Not informed	Aluminum	Aluminum	Not informed	Not informed	Not informed
Suspension
Suspension configuration	Rigid	Rigid	Rigid	Rigid	Not informed	Not informed
Drivetrain
Front chainrings	3	1	1	3	2	2
Smallest chainring	22	28	32	22	22	22
Largest chainring	42	28	32	42	36	36
Rear sprockets	8	Not informed	6	7	10	10
Smallest sprocket	11	Not informed	14	14	11	11
Largest sprocket	32	Not informed	28	34	36	36
Lowest gear	16.5 in	Not informed	22.9 in	15.5 in	17.7 in	17.7 in
Highest gear	91.6 in	Not informed	45.7 in	72.0 in	94.9 in	94.9 in
Brakes
Brake type	Hydraulic disc	Rim brake	Rim brake	Rim brake	Hydraulic disc	Hydraulic disc
Other specifications
Suspension	Rigid	Rigid	Rigid	Rigid	Not informed	Not informed
Tire width	1.85″	1.75″	1.85″	1.85″	2.2″	2.2″
Travel	Configuration: Rigid	Configuration: Rigid	Configuration: Rigid	Configuration: Rigid	Not informed	Not informed
Wheel size	24″	16″	20″	24″	27.5″ / 29″	27.5″ / 29″