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.
- Data limitation
No geometry is recorded for 2012 Marin Alpine Trail 29er and 2009 Marin Alpine Trail 29er.
- Identity & price
2009 Marin Alpine Trail 29er had an original MSRP $120 lower than 2012 Marin Alpine Trail 29er.
Original MSRP is the published list price when new, not today’s used-bike value.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest0.65:1Highest4.00:1Total range618%
Speed unavailable: wheel or tire size is missing or unclear.
Lowest0.65:1Highest3.82:1Total range590%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 29×2.1; rear size isn’t listed.
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
2012 Marin Alpine Trail 29er
2009 Marin Alpine Trail 29er
Overview
Model Year
2012
2009
Brand
Marin
Marin
Model
Alpine Trail 29er
Alpine Trail 29er
Bicycle Type
Mountain
Mountain bike, front suspension
Original MSRP
$849.99
$729.99
Colors
Gray Gloss
Red Brick
Sizes
17, 19, 20.5, 22
17", 19", 20.5", 22"
Weight
—
—
Frameset
Frame Construction
—
TIG-welded
Frame Material
double butted 6061 alloy
6061 Double Butted Aluminum
Fork
Rock Shox XC28 TurnKey 100mm
RockShox Dart 3 29er, 100mm travel
Fork Material
—
Single
Drivetrain
Component Group
—
Mountain Mix
Shifters
Shimano Alivio
Shimano Alivio
Front Derailleur
Shimano Alivio
Shimano Altus
Rear Derailleur
Shimano Deore
Shimano Alivio
Crankset
TruVativ Blaze 3.0 44/32/22T
TruVativ X-Flow 3.0, 22/32/42 teeth
Bottom Bracket
Truvativ cartridge bearing
Truvativ sealed cartridge
Cassette
Shimano HG30 8spd 11-34t
Shimano HG30
Rear Cogs
—
8-speed, 11 - 34 teeth
Chain
Shimano HG-53
KMC HG40
Pedals
Composite
Composite
Brakes
Brakes
Tektro Draco 160mm
Hayes MX-4 mechanical w/6" rotor brakes, forged alloy 3 finger levers
Cockpit & Contact Points
Headset
Fsa
1 1/8" Ritchey LB
Handlebar
Alloy 31.8
Double Butted 6061 Alloy OS riser
Handlebar Extensions
—
Not included
Stem
Marin OS 31.8
Marin OS Alloy
Saddle
WTB Silverado
WTB Speed V Sport LE
Seatpost
Alloy 27.2
Alloy Micro Adjust, 27.2mm diameter
Wheels & Tires
Hubs
—
Alloy Double Sealed Disc QR
Rims
Alex TD20
Alex TD-20, 32-hole
Spokes
—
WTB stainless, 14ga. (2.0mm)
Front Tire
Geax Saguaro 29 x 2.2
29 x 2.10" WTB Prowler SL Comp
Wheel Size
—
29" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.