Rocky Mountain Altitude Alloy 50

Name: Rocky Mountain Altitude Alloy 50
Brand: Rocky Mountain

2020 MountainEnduro

Last known price: $3,699

Prices shown first for United States
Travel: 160 / 150 mm Fork / rear shock
Wheels: 27.5″, 26″
Gear range: 510%
Weight: 14.17 kg 31.2 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

XS Steep
XS Steep
XS Slack
XS Slack
SM Steep
SM Steep
SM Slack
SM Slack
MD Steep
MD Steep
MD Slack
MD Slack
LG Steep
LG Steep
LG Slack
LG Slack
XL Steep
XL Steep
XL Slack
XL Slack

The manufacturer did not publish rider heights for these sizes.

Components

21 of 22 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

FORM Alloy. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9 Adjustable Geometry + Suspension Rate Not identified

RIDE-9

Suspension

2 parts

Drivetrain

6 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Sizes and geometry

20 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size MD Steep

Table

Reach 437mm

Stack 599mm

Wheelbase 1181mm

Head angle 65.7°

Seat angle 74.7°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 26″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 20 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	391	386	379	375	419	414	407	402	441	437	430	425	464	459	452	448	490	486	479	474
Stackmm	578	581	586	589	587	590	595	598	596	599	604	608	605	609	614	617	619	622	628	631
Top tube lengthmm	545	546	548	549	575	576	578	579	600	601	603	604	625	626	628	629	655	656	658	659
Seat tube lengthmm	368	368	368	368	394	394	394	394	432	432	432	432	470	470	470	470	508	508	508	508
Head tube lengthmm	100	100	100	100	110	110	110	110	120	120	120	120	130	130	130	130	145	145	145	145
Head tube angle	66.1°	65.7°	65°	64.5°	66.1°	65.7°	65°	64.5°	66.1°	65.7°	65°	64.6°	66.1°	65.7°	65°	64.6°	66.1°	65.7°	65.1°	64.6°
Seat tube angle	75.1°	74.7°	74°	73.5°	75.1°	74.7°	74°	73.5°	75.1°	74.7°	74°	73.6°	75.1°	74.7°	74°	73.6°	75.1°	74.7°	74.1°	73.6°
Chainstay lengthmm	423	423	426	426	423	423	426	426	423	423	426	426	423	423	426	426	423	423	426	426
Wheelbasemm	1119	1123	1122	1126	1150	1155	1153	1157	1177	1181	1180	1184	1204	1208	1206	1211	1236	1240	1239	1243
Front centermm	696	700	696	700	727	732	727	731	754	758	754	758	781	785	780	785	813	817	813	817
Bottom bracket dropmm	-1	-4	13	10	-1	-4	14	10	-1	-4	14	11	-1	-4	14	11	-1	-4	14	11
Bottom bracket heightmm	356	347	342	333	356	347	341	333	356	347	341	332	356	347	341	332	356	347	341	332
Standover heightmm	820	819	814	813	820	819	814	813	820	819	814	813	820	819	814	813	820	819	814	813
Fork rakemm	44	45	45	44	43	45	45	44	44	44	45	45	44	45	44	45	44	44	45	44
Trailmm	109	105	116	115	111	105	116	115	109	107	116	113	109	105	117	113	109	107	115	114
Stack/reach ratio	1.48	1.51	1.55	1.57	1.40	1.43	1.46	1.49	1.35	1.37	1.41	1.43	1.30	1.33	1.36	1.38	1.26	1.28	1.31	1.33

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: Aluminum
Bicycle weight: 14.17 kg

31.2 lb

Suspension

Suspension configuration: Full suspension
Front travel: 160 mm
Rear travel: 150 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 17.3 in
Highest gear: 88.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 27.5″, 26″

Technical analysis

5 measures

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

Front travel

160 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2020
Sample: 829 bicycles with this information
Coverage: 98.5% of the class

Rear travel

150 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2020
Sample: 678 bicycles with this information
Coverage: 80.6% of the class

Lowest gear

17.3 gear inches

This value is below the central range for this class.

Cohort: Mountain / Enduro Model year: 2020
Sample: 705 bicycles with this information
Coverage: 83.8% of the class

Highest gear

88.4 gear inches

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2020
Sample: 705 bicycles with this information
Coverage: 83.8% of the class

Shifting

Mechanical

50 of 841 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2020
Sample: 841 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.6 km/h
Highest gear: 33.9 km/h

Total gear range 510%

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: 17.3–88.4 gear inches
Class reference (p10–p90): 17.3–93.5 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Enduro Model year: 2020
Lowest gear: 705 bicycles with this information, 83.8% of the class
Highest gear: 705 bicycles with this information, 83.8% 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 2020 builds
Specification	This bicycle Rocky Mountain Altitude Alloy 50	Rocky Mountain Altitude Alloy 30	Rocky Mountain Altitude Carbon 50	Rocky Mountain Altitude Carbon 70	Rocky Mountain Altitude Carbon 90
Frame
Frame material	Aluminum	Aluminum	Carbon	Carbon	Carbon
Bicycle weight	14.17 kg	14.51 kg	13.93 kg	13.66 kg	13.25 kg
Drivetrain
Smallest sprocket	10	11	10	10	10
Largest sprocket	51	50	51	51	51
Lowest gear	17.3 in	17.7 in	17.3 in	17.3 in	17.3 in
Highest gear	88.4 in	80.4 in	88.4 in	88.4 in	88.4 in
Rear sprockets	Not informed	12	Not informed	Not informed	12
Other specifications
Bottom bracket standard	Not informed	BB86/BB92	Not informed	BB86/BB92	BB86/BB92

Changes since 2019
Specification	2019 Rocky Mountain Altitude Alloy 50	This bicycle Rocky Mountain Altitude Alloy 50
Frame
Bicycle weight	Not informed	14.17 kg
Drivetrain
Rear sprockets	12	Not informed
Smallest sprocket	11	10
Largest sprocket	50	51
Lowest gear	17.7 in	17.3 in
Highest gear	80.4 in	88.4 in
Other specifications
Bottom bracket standard	BB86/BB92	Not informed