Centurion R' Bock 16

2026 YouthGeneral youth Manufacturer page

Suspension: Rigid
Wheels: 16″
Drivetrain: 1 × 1 28t / 16t
Gear range: 100%
Weight: 6.7 kg 14.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

21cm

The manufacturer did not publish rider heights for these sizes.

Components

18 of 20 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

R' Bock 16 II, Material: Aluminium, 16", Steuerrohr: 1 1/8" straight, Ausfallende: 10x112mm, Bremsaufnahme: V-brake Not identified

Suspension

1 part

Fork
- Centurion

Drivetrain

5 parts

Bottom bracket
- FSA
TH-7420ST
Cassette

16T, single. Not identified
Chain
- KMC S1 1 speed
Chain guide
- Centurion
Crankset
- Procraft 28t

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

5 parts

Other components

1 part

Bell
- Procraft

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 21cm

Table

Geometry diagram unavailable

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

Size

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	390
Seat tube lengthmm	210
Head tube lengthmm	115
Head tube angle	70°
Seat tube angle	71°
Chainstay lengthmm	293
Wheelbasemm	723
Front centermm	430
Bottom bracket dropmm	12
Standover heightmm	373

Not published by the manufacturer: Reach, Stack, Bottom bracket height, Fork rake, Trail, Stack/reach ratio, 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: 6.7 kg

14.8 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 1
Smallest sprocket: 16
Largest sprocket: 16
Lowest gear: 28.0 in
Highest gear: 28.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: No shifting

Additional specifications

Tire width: 1.5″
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 16″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.7 km/h
Highest gear: 10.7 km/h

Total gear range 100%

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: 28.0–28.0 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
Specification	This bicycle Centurion R' Bock 16	Centurion R' Bock 20	Centurion R' Bock 24	Centurion R' Bock 24 EQ	Centurion R' Bock 24 MTB
Frame
Bicycle weight	6.7 kg	8.8 kg	9.7 kg	13.1 kg	10.9 kg
Suspension
Suspension configuration	Rigid	Rigid	Rigid	Hardtail	Hardtail
Front travel	Not informed	Not informed	Not informed	50 mm	63 mm
Drivetrain
Smallest chainring	28	28	28	28	30
Largest chainring	28	28	28	28	30
Rear sprockets	1	7	9	9	10
Smallest sprocket	16	11	11	11	11
Largest sprocket	16	34	46	46	48
Lowest gear	28.0 in	16.5 in	14.6 in	14.6 in	15.0 in
Highest gear	28.0 in	50.9 in	61.1 in	61.1 in	65.5 in
Brakes
Brake type	Rim brake	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Shifting	No shifting	Mechanical	Mechanical	Mechanical	Mechanical
Other specifications
Suspension	Rigid	Rigid	Rigid	Hardtail	Hardtail
Tire width	1.5″	2.2″	1.95″	1.95″	2.1″
Wheel size	16″	20″	24″	24″	24″
Bottom bracket standard	Not informed	Not informed	Not informed	Not informed	BSA
Fork spring	Not informed	Not informed	Not informed	Not informed	Air