Rocky Mountain Vertex Carbon 90

2018 MountainCross-country

Last known price: $5,169

Prices shown first for United States
Fork travel: 100 mm
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–50t
Gear range: 500%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

19 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

SMOOTHWALL™ Carbon Super Hi Mod. Press Fit BB. Internal Cable Routing. 27.2mm Dropper Post Compatible Not identified

Suspension

1 part

Fork
- RockShox SID RLC

Drivetrain

6 parts

Brakes

1 part

Brakes
- SRAM Level TLM

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 415mm

Stack 607mm

Wheelbase 1101mm

Head angle 69.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	390.9	414.5	435.2	455.9
Stackmm	602.2	606.86	620.9	634.96
Top tube lengthmm	575	600	625	650
Seat tube lengthmm	393.7	431.8	469.9	508
Head tube lengthmm	90	95	110	125
Head tube angle	69.5°	69.5°	69.5°	69.5°
Seat tube angle	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	430	430	430	430
Wheelbasemm	1076	1101	1127	1153
Front centermm	653	678	704	730
Bottom bracket dropmm	60	60	60	60
Bottom bracket heightmm	314	314	314	314
Standover heightmm	826	826	826	826
Fork rakemm	53	53	53	53
Trailmm	83	83	83	83
Stack/reach ratio	1.54	1.46	1.43	1.39

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

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 92.8 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: BB86/BB92
Tire width: 2.2″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

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

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 771 bicycles with this information
Coverage: 97.9% of the class

Lowest gear

18.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 724 bicycles with this information
Coverage: 91.9% of the class

Highest gear

92.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 724 bicycles with this information
Coverage: 91.9% of the class

Shifting

Mechanical

18 of 787 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 787 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 35.5 km/h

Total gear range 500%

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: 18.6–92.8 gear inches
Class reference (p10–p90): 16.5–105.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2018
Lowest gear: 724 bicycles with this information, 91.9% of the class
Highest gear: 724 bicycles with this information, 91.9% 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 2018 builds

Differences across 2018 builds
Specification	This bicycle Rocky Mountain Vertex Carbon 90	Rocky Mountain Vertex 20	Rocky Mountain Vertex 24	Rocky Mountain Vertex Alloy 30	Rocky Mountain Vertex Alloy 50	Rocky Mountain Vertex Carbon 50
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Suspension
Front travel	100 mm	65 mm	65 mm	100 mm	100 mm	100 mm
Drivetrain
Front chainrings	1	1	1	2	2	2
Smallest chainring	32	28	28	28	28	28
Largest chainring	32	28	28	38	38	38
Rear sprockets	12	9	9	11	Not informed	11
Smallest sprocket	10	11	11	11	11	11
Largest sprocket	50	32	36	40	40	40
Lowest gear	18.6 in	21.0 in	22.6 in	20.3 in	20.3 in	20.3 in
Highest gear	92.8 in	61.1 in	73.8 in	100.2 in	100.2 in	100.2 in
Other specifications
Bottom bracket standard	BB86/BB92	BSA	BSA	BB86/BB92	BB86/BB92	BB86/BB92
Tire width	2.2″	1.9″	2.1″	2.2″	2.2″	2.2″
Wheel size	29″	20″ / 24″	29″	29″	29″	29″
Fork spring	Not informed	Air	Air	Air	Air	Air