Megamo Silk GRX Di2 12s

Name: Megamo Silk GRX Di2 12s
Brand: Megamo

2024 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €4,992 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 31–48t / 11–34t
Gear range: 479%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 156–166
SM 163–174
MD 171–182
LG 179–189
XL 185–195

Components

8 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

Carbon Advanced Composite Racing Gravel frame, Full Internal Cable Routing, BB86, Flat mount disc 12x142 Not identified

Suspension

1 part

Fork

Carbon Advanced Composite Racing Gravel fork, Full Internal Cable Routing, Flat mount disc 12x100 Not identified

Drivetrain

5 parts

Bottom bracket

BB86/BB92, press-fit Not identified
Cassette
- Shimano 105 CS-R7101 12 speeds 11–34t
CS-R7101
Crankset
- Shimano GRX FC-RX820 12 speeds
FC-RX820
Rear derailleur
- Shimano GRX RD-RX825 12 speeds
RD-RX825
Shifters
- Shimano GRX ST-RX825
ST-RX825

Brakes

1 part

Brakes
- Shimano GRX BL-RX825
BL-RX825

Wheels and tires

2 parts

Cockpit and contact points

4 parts

Handlebar

Carbon Full Integratted Internal Cable Routing Gravel Racing Handlebar: 70/380 (XS,S), 90/410 (M,L), 110/440 (XL) Not identified
Headset

Totally Internal Cable routing Not identified
Saddle
- Selle Italia NOVUS Boost Evo
Seatpost

Gravel Advanced Carbon Seat Post Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 395mm

Stack 557mm

Wheelbase 1029mm

Head angle 71.0°

Seat angle 74.0°

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	372	382	395	408	416
Stackmm	516	535	557	581	605
Top tube lengthmm	515	535	555	580	595
Seat tube lengthmm	450	470	500	520	545
Head tube lengthmm	90	110	130	155	180
Head tube angle	70°	70°	71°	71°	71°
Seat tube angle	74.5°	74°	74°	73.5°	73.5°
Chainstay lengthmm	425	425	425	425	425
Wheelbasemm	1000	1017	1029	1050	1066
Front centermm	585	602	614	635	651
Bottom bracket dropmm	70	70	71	71	71
Bottom bracket heightmm	279	279	278	278	278
Fork rakemm	44	44	45	45	45
Trailmm	80	80	73	73	73
Stack/reach ratio	1.39	1.40	1.41	1.42	1.45

Not published by the manufacturer: Standover height, 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

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 31
Largest chainring: 48
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 26.4 in
Highest gear: 126.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BB86/BB92
Tire width: 40c
Wheel material: Carbon
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

26.4 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,716 bicycles with this information
Coverage: 76.6% of the class

Highest gear

126.6 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,716 bicycles with this information
Coverage: 76.6% of the class

Shifting

Electronic

771 of 2,238 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2024
Sample: 2,238 bicycles with this information
Coverage: 99.9% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.1 km/h
Highest gear: 48.5 km/h

Total gear range 479%

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: 26.4–126.6 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: 1716 bicycles with this information, 76.6% of the class
Highest gear: 1716 bicycles with this information, 76.6% of the class

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 2024 builds

Differences across 2024 builds
Specification	This bicycle Megamo Silk GRX Di2 12s	Megamo Silk 08	Megamo Silk 10	Megamo Silk 01 AXS	Megamo Silk 05 AXS	Megamo Silk 00 XPLR
Drivetrain
Front chainrings	2	2	1	1	1	1
Smallest chainring	31	31	40	42	40	42
Largest chainring	48	48	40	42	40	42
Smallest sprocket	11	11	11	10	10	10
Largest sprocket	34	36	50	52	52	44
Lowest gear	26.4 in	25.0 in	23.2 in	23.4 in	22.3 in	27.7 in
Highest gear	126.6 in	126.6 in	105.5 in	121.8 in	116.0 in	121.8 in
Cockpit
Shifting	Electronic	Mechanical	Mechanical	Electronic	Electronic	Electronic
Other specifications
Tire width	40c	45c	45c	40c	40c	40c
Wheel material	Carbon	Aluminum	Aluminum	Carbon	Aluminum	Carbon
Power meter	Not informed	Not informed	Not informed	SRAM Rival AXS 12s 42t PowermeterAdditional specification: Model display: Rival AXSAdditional specification: Model id: rival-axs	Not informed	Not informed