Opus Bolt

Name: Opus Bolt
Brand: Opus

2025 YouthGeneral youth Manufacturer page

Fork travel: 63 mm
Wheels: 20″
Gear range: 243%
Weight: 10.89 kg 24.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

15 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

Improved 6061 aluminum frame with shorter chainstays and more tire clearance Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

7 parts

Bottom bracket

5 pc steel Not identified
Cassette
- Shimano
Chain
- KMC
Crankset
- Samox
Front derailleur

None
Rear derailleur
- SRAM X3 7 speeds
Shifters
- SRAM 3.0 Twist 3 speeds

Brakes

2 parts

Brake levers

Jak-7 mechanical disc brake Levers Not identified
Brakes

Jak-7 mechanical disc brakes - 160 mm Not identified

Wheels and tires

4 parts

Front hub
- Joytech
Rear hub
- Joytech
Rims

Ace disc double wall Not identified
Tires
- Innova
IA-2021

Cockpit and contact points

6 parts

Handlebar
- Opus
Headset
- VP
Pedals
- Wellgo
Saddle
- Opus
Seatpost
- Opus
Stem
- ProMax

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 20"

Table

Geometry diagram unavailable

The drawing needs wheelbase, 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
Reachmm	334
Stackmm	420
Top tube lengthmm	455
Seat tube lengthmm	295
Head tube lengthmm	100
Head tube angle	71°
Seat tube angle	74°
Chainstay lengthmm	370
Bottom bracket dropmm	8
Standover heightmm	524
Stack/reach ratio	1.26
Suspension and parts
Crank lengthmm	127
Handlebar widthmm	540
Stem lengthmm	60

Not published by the manufacturer: Wheelbase, Front center, Bottom bracket height, Fork rake, Trail, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 10.89 kg

24.0 lb

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 36
Largest chainring: 36
Smallest sprocket: 14
Largest sprocket: 34
Lowest gear: 21.2 in
Highest gear: 51.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.35″
Wheel material: Aluminum
Wheel size: 20″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.1 km/h
Highest gear: 19.7 km/h

Total gear range 243%

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.