Velopedia Bicycle Archive
Compare Bicycles
Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Identity & price
2021 Rocky Mountain Fusion 40 had an original MSRP $190 lower than 2023 Rocky Mountain Fusion 40.
Original MSRP is the published list price when new, not today’s used-bike value.
- Data limitation
Published weights cannot be compared because the measurement conditions are missing or differ.
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.
Lowest0.60:1Highest2.73:1Total range455%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 29×2.4.
Lowest0.60:1Highest2.73:1Total range455%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 29×2.4.
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
2021 Rocky Mountain Fusion 40
2023 Rocky Mountain Fusion 40
Overview
Model Year
2021
2023
Brand
Rocky Mountain
Rocky Mountain
Model
Fusion 40
Fusion 40
Bicycle Type
Mountain
Mountain
Original MSRP
$1,249.00
$1,439.00
Colors
Black/Beige
Black/Brown
Sizes
S, M, L, XL
S, M, L, XL
Weight
29.48 LBS|13.4 KGS
29.4 LBS|13.3 KGS
Frameset
Frame Construction
Rocky Mountain 6061 Alloy. Threaded BB. Zero Stack Tapered Headtube 0 Rear Triangle
Rocky Mountain 6061 Alloy | Threaded BB | Zero Stack Tapered Headtube Rear Triangle
Frame Material
Aluminum
Aluminum
Fork
RockShox Judy Silver Fast Black TK Air 100mm
RockShox Judy Silver Fast Black TK Air 100mm
Drivetrain
Shifters
Sram SX Eagle
Sram SX Eagle
Rear Derailleur
Sram SX Eagle
Sram SX Eagle
Crankset
Sram SX Eagle Powerspline 30T
Sram SX Eagle Powerspline | 30T |SM-MD 170mm Crank Length | LG-XL 175mm Crank Length
Bottom Bracket
Sram Powerspline
Sram Powerspline
Cassette
Sram PG-1210 11-50T
Sram PG-1210 11-50T
Chain
Sram SX Eagle
Sram SX Eagle
Brakes
Brakes
Shimano MT201 2 Piston
Shimano MT4100 2 Piston | Resin Pads | F:Shimano RT10 160mm | R:Shimano RT10 160mm
Cockpit & Contact Points
Headset
FSA No. 57B
Rocky Mountain | Loose Ball Bearings | 1.5" Crown Race
Handlebar
Rocky Mountain XC 760mm
Rocky Mountain XC | 760mm Width | 25mm Rise | 9° Backsweep | 5° Upsweep | 31.8 Clamp
Stem
Rocky Mountain XC
Rocky Mountain 31.8 XC | 7° Rise | All Sizes = 50mm
Saddle
WTB Volt 142
Rocky Mountain 148 Steel
Seatpost
Rocky Mountain 30.9mm
Rocky Mountain 30.9mm
Wheels & Tires
Hubs
Front: Shimano TX505; Rear: Shimano TX505
Front: Shimano TX505; Rear: Shimano TX505
Rims
WTB ST i30 TCS 2.0 Tubeless / Tubeless Compatible - Tape / Valves / Sealant Not Incl
WTB ST i30 TCS 2.0 Tubeless | 32H | Tubeless Compatible - Tape / Valves / Sealant Not Incl
Spokes
2.0 Stainless
2.0 Stainless
Front Tire
WTB Ranger Comp 29 x 2.4
WTB Ranger Comp 29 x 2.4
Rear Tire
WTB Ranger Comp 29 x 2.4
WTB Ranger Comp 29 x 2.4
Wheel Size
29"
29"
Geometry · choose a size for each bicycle
Geometry size
Reach
450 mm
450 mm
Stack
598 mm
598 mm
Effective top tube
616 mm
616 mm
Head-tube angle
66.5°
66.5°
Seat-tube angle
74.5°
74.5°
Seat tube
420 mm
420 mm
Head tube
100 mm
100 mm
Chainstay / rear center
445 mm
445 mm
Wheelbase
1180 mm
1180 mm
Bottom-bracket drop
60 mm
60 mm
Standover height
776 mm
776 mm
Wheel size
29
29
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.