Rocky Mountain Instinct Alloy 70 BC Edition

2020 MountainEnduro

Last known price: $4,699

Prices shown first for United States
Travel: 160 / 155 mm Fork / rear shock
Wheels: 29″, 27.5″
Gear range: 510%
Weight: 14.68 kg 32.4 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

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

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. Not identified

Suspension

2 parts

Drivetrain

6 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Sizes and geometry

8 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 426mm

Stack 615mm

Wheelbase 1191mm

Head angle 65.5°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 8 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	407	403	431	426	454	449	481	477
Stackmm	607	610	612	615	621	625	630	634
Top tube lengthmm	577	578	602	603	627	628	657	658
Seat tube lengthmm	392	392	432	432	470	470	508	508
Head tube lengthmm	95	95	100	100	110	110	120	120
Head tube angle	65.9°	65.5°	65.9°	65.5°	65.9°	65.5°	65.9°	65.5°
Seat tube angle	74.4°	74°	74.4°	74°	74.4°	74°	74.4°	74°
Chainstay lengthmm	435	435	435	435	435	435	435	435
Wheelbasemm	1161	1165	1187	1191	1213	1217	1245	1249
Front centermm	727	730	753	756	779	782	811	814
Bottom bracket dropmm	19	16	19	16	19	16	19	16
Bottom bracket heightmm	355	339	355	339	355	339	355	339
Standover heightmm	828	824	828	824	828	824	828	824
Fork rakemm	51	51	51	52	50	51	51	51
Trailmm	112	106	112	105	113	106	112	106
Stack/reach ratio	1.49	1.51	1.42	1.44	1.37	1.39	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: 14.68 kg

32.4 lb

Suspension

Suspension configuration: Full suspension
Front travel: 160 mm
Rear travel: 155 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 17.3 in
Highest gear: 88.0 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: 29″, 27.5″

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

155 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

88.0 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: 33.7 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: 17.3–88.0 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

Differences across 2020 builds
Specification	This bicycle Rocky Mountain Instinct Alloy 70 BC Edition	Rocky Mountain Instinct Alloy 30	Rocky Mountain Instinct Alloy 50	Rocky Mountain Instinct Alloy 50 BC Edition	Rocky Mountain Instinct Carbon 50	Rocky Mountain Instinct Carbon 70
Frame
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Bicycle weight	14.68 kg	14.75 kg	14 kg	15.05 kg	13.6 kg	12.88 kg
Suspension
Front travel	160 mm	140 mm	140 mm	160 mm	140 mm	140 mm
Rear travel	155 mm	140 mm	140 mm	155 mm	140 mm	140 mm
Drivetrain
Smallest sprocket	10	11	10	11	10	10
Largest sprocket	51	50	51	50	51	51
Lowest gear	17.3 in	17.6 in	17.3 in	17.6 in	17.3 in	17.3 in
Highest gear	88.0 in	80.0 in	88.0 in	80.0 in	88.0 in	88.0 in
Rear sprockets	Not informed	12	Not informed	12	Not informed	Not informed
Other specifications
Tire width	2.5″	2.4″	2.4″	2.5″	2.4″	2.4″
Bottom bracket standard	Not informed	BB86/BB92	Not informed	BB86/BB92	Not informed	Not informed