Velopedia Bicycle Archive
Compare Bicycles
Compare published geometry, gearing and specifications for up to three bicycles.
Edit comparison
Add a bicycle
Search the Archive without leaving this comparison.
1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Frame geometry
2021 Rocky Mountain Altitude Carbon 50 has 9 mm more reach than 2025 Rocky Mountain Altitude Carbon 50 in the selected sizes.
More reach puts the head-tube reference farther forward, not necessarily the hands.
- Handling
2025 Rocky Mountain Altitude Carbon 50 has a 2.4° slacker head-tube angle than 2021 Rocky Mountain Altitude Carbon 50 in the selected sizes.
Fork offset, tire size and wheelbase also affect steering; head angle alone is not a handling verdict.
Selected-size geometry
Geometry overlay
Frames share one scale and a bottom-bracket alignment. Size labels differ by brand; schematic drawing aids are identified below.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest0.63:1Highest3.20:1Total range510%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 2.4″ + 29-inch.
Lowest0.63:1Highest3.20:1Total range510%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 2.4″ + 29-inch.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
2025 Rocky Mountain Altitude Carbon 50
2021 Rocky Mountain Altitude Carbon 50
Overview
Model Year
2025
2021
Brand
Rocky Mountain
Rocky Mountain
Model
Altitude Carbon 50
Altitude Carbon 50
Bicycle Type
Mountain
Mountain
Original MSRP
$5,699.00
$5,739.00
Colors
Purple/Red
Purple/Black, Black/Brown
Sizes
S, M, L, XL
S, M, L, XL
Weight
—
31.526 LBS|14.33 KGS
Frameset
Frame Construction
SMOOTHWALL™ Carbon | Penalty Box 2.0 Storage |Full Sealed Cartridge Bearings | Threaded BB | Internal Cable Routing | 2-Bolt ISCG05 Tabs | RIDE-4™ Adjustable Geometry | 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 GRIP Performance Series 170mm | 27.5 = 37mm Offset | 29 = 44mm Offset
Fox 36 Float EVOL GRIP Performance Series 170mm | 27.5 = 37mm Offset | 29 = 44mm Offset
Rear Shock
Fox Float X Performance | Sealed Bearing Eyelet | 40x10mm F Hardware | SM = 210x55mm | MD - LG - XL = 230x60mm | Size-Specific tune in FAQ
Fox Float DPX2 Performance | Sealed Bearing Eyelet | SM = 210x55mm | MD - LG - XL = 230x60mm
Drivetrain
Shifters
Shimano SLX
Shimano SLX
Rear Derailleur
Shimano XT
Shimano XT
Crankset
Race Face Aeffect Cinch | 32T | 24mm Spindle | SM = 165mm | MD - XL = 170mm
Race Face Aeffect Cinch | 27.5 = 34T | 29 = 32T
Bottom Bracket
Shimano Threaded BBMT501-B
Shimano SM-BBMT500
Cassette
Shimano SLX 10-51T 12spd
Shimano SLX 10-51T
Chain
Shimano M7100
Shimano M7100
Brakes
Brakes
Shimano XT Trail 4 Piston | Metal Pads
Shimano XT Trail 4 Piston
Cockpit & Contact Points
Headset
FSA Orbit NO.85 Reach Adjust | 0mm Cups Installed | +/- 5mm Cups Included | Sealed Stainless 36°x45° Bearings | 30.2mm x 41mm x 6.5mm Upper | 40mm x 51.8mm x 8.0mm Lower | 1.5" Crown Race
FSA Orbit NO.57E
Handlebar
Rocky Mountain AM | 780mm Width | 38mm Rise | 9° Backsweep | 5° Upsweep | 35 Clamp
Rocky Mountain AM 780mm
Stem
Rocky Mountain 35 AM | 0° Rise | All Sizes = 40mm
Rocky Mountain 35 AM | 40mm
Saddle
WTB Solano Fusion Form 142 | Cromoly Rails
WTB Volt Race 142
Seatpost
X Fusion Manic Composite 30.9mm | SM = 150mm | MD = 170mm | LG - XL = 200mm
Race Face Aeffect R Dropper 30.9mm | Shimano MT500 Remote | SM = 125mm | MD = 150mm | LG - XL = 175mm
Wheels & Tires
Hubs
Front: Novatec D791SB 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
WTB ST i30 TOUGH TCS 2.0 | 32H | Cushcore Trail Tire Inserts | Lightweight | Tire & Rim Protection
WTB ST Light i30 TCS 2.0 Tubeless / 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 DD Tubeless Ready
Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready
Wheel Size
SM: 27.5″; MD/LG/XL: 29″
29"; 27.5"
Geometry · choose a size for each bicycle
Geometry size
Reach
475 mm
484 mm
Stack
639 mm
631 mm
Effective top tube
610 mm
637 mm
Head-tube angle
63°
65.4°
Seat-tube angle
77°
76.4°
Seat tube
440 mm
445 mm
Head tube
115 mm
110 mm
Chainstay / rear center
450 mm
436 - 447
Wheelbase
1283 mm
1248 mm
Bottom-bracket drop
38 mm
22 mm
Standover height
798 mm
818 mm
Wheel size
29
29
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.