Silverback Siablo CF GRX

2024 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €2,999 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 11 40t / 11–42t
Gear range: 382%
Weight: 9.5 kg 20.9 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 152–161
SM 159–169
MD 167–176
LG 174–184
XL 182–192

Components

10 of 21 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

Full Carbon Frame, Internal Cable Routing, Flat-mount Disc Brake Mounts. Supports 700C and 650B Wheelsize, including Internal Routed Dropper Post Compatible. Not identified

Suspension

1 part

Fork

700C Full Carbon Fork, 100x12mm Hub Spacing, for Internal Cable Routing Not identified

Drivetrain

6 parts

Bottom bracket

Pressfit PF30 Not identified
Cassette
- Shimano Deore CS-M5100-11 11 speeds 11–42t
CS-M5100-11CS-M5100
Chain
- Shimano CN-HG601-11
CN-HG601-11
Crankset
- Shimano GRX FC-RX600-11 11 speeds 40t
FC-RX600-11FC-RX600
Rear derailleur
- Shimano GRX RD-RX810 11 speeds
RD-RX810
Shifters
- Shimano GRX ST-RX600
ST-RX600BR-RX400

Brakes

2 parts

Wheels and tires

4 parts

Front hub

F: 12x100mm Not identified
Rear hub

F: 12x100mm Not identified
Rims
- Vision
Tires
- Vittoria

Cockpit and contact points

7 parts

Grips

Surface Handlebar Wrap, Seude Black, Plug with Expander Bolt Not identified
Handlebar

SURFACE Alloy Handlebar, Dia: 31.8mm, Reach: 77mm, Drop: 128mm, Flare: 16° Not identified
Headset
- Token
Pedals

Not Included Not identified
Saddle

SURFACE Saddle, Steel Rails Not identified
Seatpost

SURFACE Alloy, 27.2mm Not identified
Stem

SURFACE Alloy Stem, 31.8mm, Rise 7° Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 376mm

Stack 568mm

Wheelbase 1015mm

Head angle 71.5°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	371	375	376	385	394
Stackmm	537	557	568	590	609
Top tube lengthmm	520	535	550	565	580
Seat tube lengthmm	490	520	540	560	580
Head tube lengthmm	120	140	150	170	190
Head tube angle	70.5°	71°	71.5°	72°	72°
Seat tube angle	74.5°	74°	73°	73°	73°
Chainstay lengthmm	425	425	425	425	425
Wheelbasemm	1010	1015	1015	1026	1042
Front centermm	593	598	598	609	625
Bottom bracket dropmm	63	63	63	63	63
Bottom bracket heightmm	286	286	286	286	286
Standover heightmm	751	778	798	815	833
Fork rakemm	48	47	47	47	48
Trailmm	73	70	67	64	63
Stack/reach ratio	1.45	1.49	1.51	1.53	1.55

Not published by the manufacturer: 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: Carbon
Fork material: Carbon
Bicycle weight: 9.5 kg

20.9 lb
Weight limit: 120 kg

264.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 27.6 in
Highest gear: 105.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: PF30
Tire clearance: Maximum tire width: 45c
Tire width: 38c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

27.6 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,719 bicycles with this information
Coverage: 76.6% of the class

Highest gear

105.5 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,719 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

772 of 2,241 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2024
Sample: 2,241 bicycles with this information
Coverage: 99.9% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.6 km/h
Highest gear: 40.4 km/h

Total gear range 382%

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: 27.6–105.5 gear inches
Class reference (p10–p90): 23.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2024
Lowest gear: 1719 bicycles with this information, 76.6% of the class
Highest gear: 1719 bicycles with this information, 76.6% of the class