Prevelo Alpha Four

Name: Prevelo Alpha Four
Brand: Prevelo

2023 YouthGeneral youth Manufacturer page

Last known price: $619

Prices shown first for United States
Suspension: Rigid
Wheels: 24″
Drivetrain: 1 × 8 32t / 11–38t
Gear range: 345%
Weight: 9.12 kg 20.1 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

One Size

The manufacturer did not publish rider heights for these sizes.

Components

4 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

Lightweight Butted 6061 Aluminum. Low Center of Gravity, Kid Specific Geometry. Internally routed Cables. 3D Forged Dropouts. Not identified

Suspension

1 part

Fork

Bladed Aluminum Legs with 1 1/8" Aluminum Steer tube Not identified

Drivetrain

5 parts

Bottom bracket

68x113 Square Taper with Sealed Cartridge Bearings Not identified
Cassette
- microSHIFT Acolyte H-Series 8 Speed Cassette 11-38 8 speeds 11–38t
Crankset

Lightweight Aluminum 3 piece. Narrow Width, 130mm length Not identified
Rear derailleur
- microSHIFT Acolyte
Shifters
- microSHIFT Acolyte

Brakes

1 part

Brakes

Forged Aluminum V-Brakes with Junior Sized Brake Levers Not identified

Wheels and tires

4 parts

Front hub

28h Forged CNC with Lightweight Allen Key Skewer Not identified
Rear hub

28h Forged CNC with Lightweight Allen Key Skewer Not identified
Rims

Lightweight Aluminum with Shaved Sidewalls Not identified
Tires
- Kenda Small Block Eight

Cockpit and contact points

6 parts

Grips

130mm Black Rubber Not identified
Handlebar

Lightweight Aluminum 31.8, 580mm wide, 45mm rise Not identified
Headset

1⅛" Internal Threadless Not identified
Pedals

Composite with 9/16 chromoly Spindle Not identified
Saddle

Prevelo Junior Not identified
Stem

Lightweight Aluminum 31.8, 45mm Extension Not identified

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 One Size

Table

Geometry diagram unavailable

The drawing needs reach and head tube length, which the manufacturer did not publish. Available facts remain in the table.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Frame
Stackmm	475
Top tube lengthmm	498
Seat tube lengthmm	330
Head tube angle	69°
Seat tube angle	69°
Chainstay lengthmm	414
Wheelbasemm	968
Front centermm	558
Bottom bracket dropmm	43
Bottom bracket heightmm	251
Standover heightmm	500
Suspension and parts
Crank lengthmm	130
Handlebar widthmm	580
Stem lengthmm	45

Not published by the manufacturer: Reach, Head tube length, Fork rake, Trail, Stack/reach ratio, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Aluminum
Bicycle weight: 9.12 kg

20.1 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 38
Lowest gear: 20.2 in
Highest gear: 69.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Shifting: Mechanical

Additional specifications

Tire width: 1.5″
Wheel material: Aluminum
Wheel size: 24″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.7 km/h
Highest gear: 26.7 km/h

Total gear range 345%

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: 20.2–69.8 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 2023 builds
Specification	This bicycle Prevelo Alpha Four	Prevelo Alpha Five	Prevelo Alpha One	Prevelo Alpha Three	Prevelo Alpha Two	Prevelo Alpha Zero
Frame
Bicycle weight	9.12 kg	9.53 kg	5.99 kg	8.07 kg	6.3 kg	3.36 kg
Drivetrain
Front chainrings	1	1	1	1	1	Not informed
Smallest chainring	32	32	25	32	25	Not informed
Largest chainring	32	32	25	32	25	Not informed
Rear sprockets	8	8	1	8	1	Not informed
Smallest sprocket	11	11	14	11	14	Not informed
Largest sprocket	38	38	14	38	14	Not informed
Lowest gear	20.2 in	21.9 in	25.0 in	16.8 in	28.6 in	Not informed
Highest gear	69.8 in	75.6 in	25.0 in	58.2 in	28.6 in	Not informed
Brakes
Brake type	Rim brake	Rim brake	Coaster brake	Rim brake	Rim brake	Rim brake
Cockpit
Shifting	Mechanical	Mechanical	No shifting	Mechanical	No shifting	No shifting
Other specifications
Tire width	1.5″	1.5″	1.5″	1.5″	1.5″	1.4″
Wheel size	24″	26″	14″	20″	16″	12″

Changes since 2022
Specification	2022 Prevelo Alpha Four	This bicycle Prevelo Alpha Four
Frame
Bicycle weight	Not informed	9.12 kg
Drivetrain
Rear sprockets	9	8
Largest sprocket	36	38
Front chainrings	Not informed	1
Smallest chainring	Not informed	32
Largest chainring	Not informed	32
Lowest gear	Not informed	20.2 in
Highest gear	Not informed	69.8 in
Other specifications
Tire width	Not informed	1.5″