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 2008 Marin Portofino.
- Identity & price
2008 Marin Portofino had an original MSRP $300 lower than 2003 Marin Portofino.
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.
Lowest1.20:1Highest4.33:1Total range361%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; rear size isn’t listed.
Lowest1.25:1Highest4.17:1Total range333%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; 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
2003 Marin Portofino
2008 Marin Portofino
Overview
Model Year
2003
2008
Brand
Marin
Marin
Model
Portofino
Portofino
Bicycle Type
Road race & triathlon
Road/sport
Original MSRP
$999.99
$700.00
Colors
Black
Gloss Smoke
Sizes
48cm, 51cm, 53cm, 55cm, 57cm, 59cm
52cm, 54cm, 56cm, 58cm, 61cm
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded/bonded
Frame Material
Columbus Thron
6061 aluminum
Fork
—
Carbon Road
Fork Material
Carbon fiber composite, unicrown crown
Carbon, aero crown
Drivetrain
Component Group
Shimano Sora Triple
Road Mix
Shifters
Shimano Sora STI Dual Control
Shimano Sora
Front Derailleur
Shimano Sora Triple
Shimano 2203
Rear Derailleur
Shimano Sora GS
Shimano Sora
Crankset
Shimano Sora, 30/42/52 teeth
FSA Vero, 30/39/50 teeth
Bottom Bracket
Sealed cartridge
Sealed cartridge
BB Shell Width
68mm English
—
Rear Cogs
8-speed, 12 - 25 teeth
8-speed, 12 - 24 teeth
Chain
Shimano CN-UG50, 1/2 x 3/32"
Shimano HG40
Pedals
Aluminum cage w/clips & straps
Composite with Alloy Cage
Brakes
Brakes
Shimano Sora Dual Pivot brakes, Shimano Sora STI Dual Control levers
Dual pivot brakes, Shimano Sora levers
Cockpit & Contact Points
Headset
1" Ritchey Logic
1 1/8" Ritchey Logic Comp
Handlebar
Cinelli Altera
6061 Alloy OS
Handlebar Extensions
Not included
Not included
Stem
3T Mutant
Alloy Adjustable
Saddle
Selle Italia XO
Marin Plush Road
Seatpost
Aluminum micro-adjust
Suspension, 27.2mm diameter
Wheels & Tires
Hubs
Formula Xero Lite XR4
Formula
Rims
Formula Xero Lite XR4, 20-hole/24-hole
Alex R450, 28-hole/32-hole
Spokes
Formula
WTB stainless steel, 15ga. (1.8mm)
Front Tire
700 x 23c Kenda Koncept
700 x 23c Kenda Koncept
Wheel Size
700c wheels
700c wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
73°
—
Seat-tube angle
73.5°
—
Chainstay / rear center
405 mm
—
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run. Legacy reference geometry is model-level historical data whose corresponding frame size is not identified; compare those dimensions as reference values rather than size-normalized fit data.