Bicycle comparison

2023 Rocky Mountain Altitude Carbon 70 · 2021 Rocky Mountain Altitude Carbon 70

Specification	2023 Rocky Mountain Altitude Carbon 70	2021 Rocky Mountain Altitude Carbon 70
Overview
Model year	2023	2021
Brand	Rocky Mountain	Rocky Mountain
Model	Altitude Carbon 70	Altitude Carbon 70
Bicycle type	Mountain	Mountain
Archive ID	900004800	900004617
Original MSRP	$7,499.00	$7,329.00
Colors	Red/Carbon; Yellow/Blue	PURPLE/BLACK; BLACK/BROWN
Sizes	MD; LG; XL; SM	MD; LG; XL; SM
Weight	32.4 LBS\|14.7 KGS	31.9 LBS\|14.5 KGS
Frameset
Frame construction	SMOOTHWALL™ Carbon \| Full Sealed Cartridge Bearings \| Press Fit BB \| Internal Cable Routing \| 2-Bolt ISCG05 Tabs \| RIDE-9™ Adjustable Geometry \| 2 Position Axle \| 160mm Travel. SMOOTHWALL™ Carbon Rear Triangle	SMOOTHWALL™ Carbon. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9™ Adjustable Geometry. 2 Position Axle. 160mm Travel. SMOOTHWALL™ Carbon Rear Triangle
Frame material	Carbon Fiber	Carbon Fiber
Fork	Fox 38 Float EVOL GRIP2 Performance Elite Series 170mm \| 27.5 = 37mm Offset \| 29 = 44mm Offset	Fox 36 Float EVOL GRIP2 Performance Elite Series 170mm \| 27.5 = 37mm Offset \| 29 = 44mm Offset
Rear shock	Fox Float X2 Performance \| Sealed Bearing Eyelet \| 25x8mm F Hardware \| SM = 210x55mm \| MD - LG - XL = 230x60mm \| Size-Specific tune in FAQ	Fox Float X2 Performance \| Sealed Bearing Eyelet \| SM = 210x55mm \| MD - LG - XL = 230x60mm
Drivetrain
Shifters	Shimano XT	Shimano XT
Rear derailleur	Shimano XT	Shimano XT
Crankset	Shimano XT \| 32T \| 24mm Spindle \| 170mm Crank Length	Shimano XT \| 27.5 = 34T \| 29 = 32T
Bottom bracket	Shimano SM-BBMT500	Shimano SM-BB71
Cassette	Shimano XT 10-51T	Shimano XT 10-51T
Chain	Shimano M8100	Shimano M8100
Brakes
Brakes	Shimano XT Trail 4 Piston \| Metal Pads \| F:Shimano RT66 203mm \| R:Shimano RT66 180mm	Shimano XT Trail 4 Piston
Cockpit & contact points
Headset	FSA Orbit NO.57E \| Sealed Stainless 36°x45° Bearings \| 30.2mm x 41mm x 7.1mm Upper \| 40mm x 51.8mm x 7.5mm Lower \| 1.5" Crown Race	FSA Orbit NO.57E
Handlebar	Rocky Mountain AM \| 780mm Width \| 38mm Rise \| 9° Backsweep \| 5° Upsweep \| 35 Clamp	Race Face Turbine R 780mm
Stem	Rocky Mountain 35 AM \| 5° Rise \| All Sizes = 40m	Rocky Mountain 35 AM \| 40mm
Saddle	WTB Volt Race 142	WTB Volt Race 142
Seatpost	Race Face Turbine R (by Fox) Dropper 30.9mm \| SM = 125mm \| MD = 150mm \| LG = 175mm \| XL = 200mm	Race Face Turbine R (by Fox) Dropper 30.9mm \| SM = 125mm \| MD = 150mm \| LG - XL = 175mm
Wheels & tires
Hubs	Front: Rocky Mountain Sealed Boost 15mm; Rear: DT Swiss 370 Boost 148mm \| 18T Star-Ratchet	Front: Rocky Mountain Sealed Boost 15mm; Rear: DT Swiss 370 Boost 148mm
Rims	Race Face AR 30 \| 32H \| Tubeless Ready - Tape / Valves Incl	Race Face AR 30 / Tubeless Ready - Tape / Valves Incl
Spokes	DT Swiss Competition 2.0/1.8/2.0	DT Swiss Competition 2.0/1.8/2.0
Front tire	Maxxis Assegai 2.5 WT 3C MaxxGrip EXO+ Tubeless Ready	Maxxis Assegai 2.5 WT 3C MaxxGrip EXO+ Tubeless Ready
Rear tire	Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready	Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready
Wheel size	29"; 27.5"	29"; 27.5"

Specification

2023 Rocky Mountain Altitude Carbon 70

2021 Rocky Mountain Altitude Carbon 70

Overview

Model year

2023

2021

Brand

Rocky Mountain

Model

Altitude Carbon 70

Bicycle type

Mountain

Archive ID

900004800

900004617

Original MSRP

$7,499.00

$7,329.00

Colors

Red/Carbon; Yellow/Blue

PURPLE/BLACK; BLACK/BROWN

Sizes

MD; LG; XL; SM

Weight

32.4 LBS|14.7 KGS

31.9 LBS|14.5 KGS

Frameset

Frame construction

SMOOTHWALL™ Carbon. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9™ Adjustable Geometry. 2 Position Axle. 160mm Travel. SMOOTHWALL™ Carbon Rear Triangle

Frame material

Carbon Fiber

Fork

Fox 38 Float EVOL GRIP2 Performance Elite Series 170mm | 27.5 = 37mm Offset | 29 = 44mm Offset

Fox 36 Float EVOL GRIP2 Performance Elite Series 170mm | 27.5 = 37mm Offset | 29 = 44mm Offset

Rear shock

Fox Float X2 Performance | Sealed Bearing Eyelet | SM = 210x55mm | MD - LG - XL = 230x60mm

Drivetrain

Shifters

Shimano XT

Rear derailleur

Shimano XT

Crankset

Shimano XT | 32T | 24mm Spindle | 170mm Crank Length

Shimano XT | 27.5 = 34T | 29 = 32T

Bottom bracket

Shimano SM-BBMT500

Shimano SM-BB71

Cassette

Shimano XT 10-51T

Chain

Shimano M8100

Brakes

Shimano XT Trail 4 Piston | Metal Pads | F:Shimano RT66 203mm | R:Shimano RT66 180mm

Shimano XT Trail 4 Piston

Cockpit & contact points

Headset

FSA Orbit NO.57E | Sealed Stainless 36°x45° Bearings | 30.2mm x 41mm x 7.1mm Upper | 40mm x 51.8mm x 7.5mm Lower | 1.5" Crown Race

FSA Orbit NO.57E

Handlebar

Race Face Turbine R 780mm

Stem

Rocky Mountain 35 AM | 5° Rise | All Sizes = 40m

Rocky Mountain 35 AM | 40mm

Saddle

WTB Volt Race 142

Seatpost

Race Face Turbine R (by Fox) Dropper 30.9mm | SM = 125mm | MD = 150mm | LG = 175mm | XL = 200mm

Race Face Turbine R (by Fox) Dropper 30.9mm | SM = 125mm | MD = 150mm | LG - XL = 175mm

Wheels & tires

Hubs

Front: Rocky Mountain Sealed Boost 15mm; Rear: DT Swiss 370 Boost 148mm | 18T Star-Ratchet

Front: Rocky Mountain Sealed Boost 15mm; Rear: DT Swiss 370 Boost 148mm

Rims

Race Face AR 30 | 32H | Tubeless Ready - Tape / Valves Incl

Race Face AR 30 / Tubeless Ready - Tape / Valves Incl

Spokes

DT Swiss Competition 2.0/1.8/2.0

Front tire

Maxxis Assegai 2.5 WT 3C MaxxGrip EXO+ Tubeless Ready

Rear tire

Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready

Wheel size

29"; 27.5"

Geometry comparison

One selected size or frame position per bicycle, matching the comparison dropdown choices used when Print / PDF was opened.

Measurement	2023 Rocky Mountain Altitude Carbon 70	2021 Rocky Mountain Altitude Carbon 70
Selected size / position	XL · 29″ · POS.5 Neutral	LG · 29″ · POS.8
Reach	510 mm	484 mm
Stack	647 mm	631 mm
Effective top tube	671 mm	637 mm
Head-tube angle	65°	65.4°
Seat-tube angle	76°	76.4°
Seat tube	480 mm	445 mm
Head tube	125 mm	110 mm
Chainstay / rear center	437 - 448	436 - 447
Wheelbase	1285 mm	1248 mm
Bottom-bracket drop	27 mm	22 mm
Standover height	816 mm	818 mm
Wheel size	29	29

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 8, 2026.